首页 > 最新文献

Journal of The Electrochemical Society最新文献

英文 中文
Cathodic Decomposition Electrodes as Standard Reference Electrodes for Molten Salts: Example of the Lithium Eutectic Electrode for the LiCl-KCl Eutectic 作为熔盐标准参考电极的阴极分解电极:用于锂-氯化钾共晶的锂共晶电极示例
IF 3.9 4区 工程技术 Q2 ELECTROCHEMISTRY Pub Date : 2024-09-10 DOI: 10.1149/1945-7111/ad76df
Timothy Lichtenstein, Mark H. Schvaneveldt, Jarrod Gesualdi and Krista L. Hawthorne
Alternatives to the widely-used standard anodic decomposition reference electrodes in molten salts are necessary to enable more easily reproduced thermochemical and electrochemical data in molten salt electrolytes. The class of standard reference electrodes called cathodic decomposition electrodes (CDEs) are easily constructed and can be used to make thermochemical measurements in molten salts more directly compared to anodic decomposition electrodes. The lithium eutectic electrode (LEE) was chosen as a sample test case for validation and was applied to thermochemical measurements of electroactive species in molten LiCl-KCl eutectic. Transient measurements were made to measure the Li+/Li reduction potential at zero current in pure LiCl-KCl eutectic relative to a Li-alloy reference electrode to validate the reference potential of the LEE. Literature-reported electromotive force measurements against Li-alloy reference electrodes were used to generate a relationship between the LEE and the standard chlorine electrode and this relationship was used to evaluate measured and reported formal potential measurements for the LiCl-KCl-GdCl3 system. This work demonstrates the general framework for defining CDEs for any molten salt system and a method for calibrating external reference electrodes against a CDE standard reference electrode, improving the ease of obtaining thermochemical and electrochemical measurements in any molten salt system.
为了更容易地再现熔盐电解质中的热化学和电化学数据,有必要在熔盐中使用广泛使用的标准阳极分解参比电极之外,再使用其他参比电极。被称为阴极分解电极(CDE)的一类标准参比电极易于制造,与阳极分解电极相比,可以更直接地用于熔盐中的热化学测量。我们选择了锂共晶电极(LEE)作为验证样本,并将其应用于熔融锂盐-氯化钾共晶中电活性物种的热化学测量。进行了瞬态测量,测量纯 LiCl-KCl 共晶在零电流下相对于锂合金参比电极的 Li+/Li 还原电位,以验证 LEE 的参比电位。文献报道的针对锂合金参比电极的电动势测量值被用来生成 LEE 与标准氯电极之间的关系,这种关系被用来评估 LiCl-KCl-GdCl3 系统的测量值和报告的正式电势测量值。这项工作展示了为任何熔盐体系定义 CDE 的一般框架,以及根据 CDE 标准参比电极校准外部参比电极的方法,从而提高了在任何熔盐体系中获得热化学和电化学测量的便利性。
{"title":"Cathodic Decomposition Electrodes as Standard Reference Electrodes for Molten Salts: Example of the Lithium Eutectic Electrode for the LiCl-KCl Eutectic","authors":"Timothy Lichtenstein, Mark H. Schvaneveldt, Jarrod Gesualdi and Krista L. Hawthorne","doi":"10.1149/1945-7111/ad76df","DOIUrl":"https://doi.org/10.1149/1945-7111/ad76df","url":null,"abstract":"Alternatives to the widely-used standard anodic decomposition reference electrodes in molten salts are necessary to enable more easily reproduced thermochemical and electrochemical data in molten salt electrolytes. The class of standard reference electrodes called cathodic decomposition electrodes (CDEs) are easily constructed and can be used to make thermochemical measurements in molten salts more directly compared to anodic decomposition electrodes. The lithium eutectic electrode (LEE) was chosen as a sample test case for validation and was applied to thermochemical measurements of electroactive species in molten LiCl-KCl eutectic. Transient measurements were made to measure the Li+/Li reduction potential at zero current in pure LiCl-KCl eutectic relative to a Li-alloy reference electrode to validate the reference potential of the LEE. Literature-reported electromotive force measurements against Li-alloy reference electrodes were used to generate a relationship between the LEE and the standard chlorine electrode and this relationship was used to evaluate measured and reported formal potential measurements for the LiCl-KCl-GdCl3 system. This work demonstrates the general framework for defining CDEs for any molten salt system and a method for calibrating external reference electrodes against a CDE standard reference electrode, improving the ease of obtaining thermochemical and electrochemical measurements in any molten salt system.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"39 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142222398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
New Electrochemical Approach for Synthesis of Nanoporous Silver 合成纳米多孔银的新型电化学方法
IF 3.9 4区 工程技术 Q2 ELECTROCHEMISTRY Pub Date : 2024-09-10 DOI: 10.1149/1945-7111/ad7533
Zhen Lei, Ksenya Mull and Nikolay Dimitrov
Cu-Ag alloy films were electrodeposited on Au substrates to serve as precursor alloys for synthesizing finely-structured nanoporous Ag (NPS) structures. Two innovative approaches, surface limited redox replacement (SLRR) and defect mediated growth (DMG) along with overpotential deposition (OPD), were comparatively utilized to fabricate Cu-Ag alloy films. The electrolyte for these novel approaches contained Pb2+ ions to serve either as a sacrificial metal to be replaced by the co-depositing Cu and Ag (in SLRR) or as mediating metal to facilitate the 2D growth of both alloy constituents (in DMG). The resulting alloy films from both approaches displayed superior uniformity and miscibility compared to the OPD alloy, as evidenced by electrochemical scanning electron microscopy (SEM) and X-ray diffraction characterization routines. In a subsequent step, NPS structures were generated through the de-alloying of as-deposited Cu-Ag alloys, as illustrated by SEM imaging that revealed ligament and pore sizes with a thickness in the ballpark of 40 nm. Also, surface area measurements done by a Pb underpotential deposition assay suggested a surface enhancement ratio nearly five times higher than that of flat Ag. Furthermore, various de-alloying potentials were assessed to determine the optimal de-alloying potential for the best outcome of the de-alloying process. Highlights Two new, kinetically mediated approaches were applied to electrodeposit CuAg alloys. Nanoporous Ag (NPS) was synthesized by dealloying of as-deposited CuAg alloys. The optimal dealloying potential range was identified by anodic polarization work. Overpotential growth of CuAg alloy was used as reference throughout the NPS synthesis. The interconnected-porosity NPS structures were studied by SEM and Pb UPD methods.
铜-银合金薄膜被电沉积在金基底上,作为合成精细结构纳米多孔银(NPS)结构的前驱合金。比较利用了表面有限氧化还原置换(SLRR)和缺陷介导生长(DMG)以及过电位沉积(OPD)这两种创新方法来制造铜银合金薄膜。这些新方法的电解质含有 Pb2+ 离子,既可作为牺牲金属被共沉积的铜和银取代(在 SLRR 中),也可作为中介金属促进两种合金成分的二维生长(在 DMG 中)。电化学扫描电子显微镜(SEM)和 X 射线衍射表征程序证明,与 OPD 合金相比,这两种方法生成的合金薄膜具有更高的均匀性和混溶性。在随后的步骤中,通过对沉积的铜银合金进行去合金化处理,生成了 NPS 结构,扫描电子显微镜成像显示了厚度约为 40 纳米的韧带和孔隙大小。此外,通过铅欠电位沉积测定法进行的表面积测量表明,铜银合金的表面增强率比平面铜银合金的表面增强率高出近五倍。此外,还对各种去合金化电位进行了评估,以确定最佳去合金化电位,使去合金化过程达到最佳效果。亮点 将两种新的动力学介导方法应用于电沉积铜银合金。通过对沉积铜银合金进行脱合金,合成了纳米多孔银(NPS)。阳极极化工作确定了最佳脱合金电位范围。在整个 NPS 合成过程中,以铜银合金的过电位生长为参考。通过 SEM 和 Pb UPD 方法研究了相互连接的多孔 NPS 结构。
{"title":"New Electrochemical Approach for Synthesis of Nanoporous Silver","authors":"Zhen Lei, Ksenya Mull and Nikolay Dimitrov","doi":"10.1149/1945-7111/ad7533","DOIUrl":"https://doi.org/10.1149/1945-7111/ad7533","url":null,"abstract":"Cu-Ag alloy films were electrodeposited on Au substrates to serve as precursor alloys for synthesizing finely-structured nanoporous Ag (NPS) structures. Two innovative approaches, surface limited redox replacement (SLRR) and defect mediated growth (DMG) along with overpotential deposition (OPD), were comparatively utilized to fabricate Cu-Ag alloy films. The electrolyte for these novel approaches contained Pb2+ ions to serve either as a sacrificial metal to be replaced by the co-depositing Cu and Ag (in SLRR) or as mediating metal to facilitate the 2D growth of both alloy constituents (in DMG). The resulting alloy films from both approaches displayed superior uniformity and miscibility compared to the OPD alloy, as evidenced by electrochemical scanning electron microscopy (SEM) and X-ray diffraction characterization routines. In a subsequent step, NPS structures were generated through the de-alloying of as-deposited Cu-Ag alloys, as illustrated by SEM imaging that revealed ligament and pore sizes with a thickness in the ballpark of 40 nm. Also, surface area measurements done by a Pb underpotential deposition assay suggested a surface enhancement ratio nearly five times higher than that of flat Ag. Furthermore, various de-alloying potentials were assessed to determine the optimal de-alloying potential for the best outcome of the de-alloying process. Highlights Two new, kinetically mediated approaches were applied to electrodeposit CuAg alloys. Nanoporous Ag (NPS) was synthesized by dealloying of as-deposited CuAg alloys. The optimal dealloying potential range was identified by anodic polarization work. Overpotential growth of CuAg alloy was used as reference throughout the NPS synthesis. The interconnected-porosity NPS structures were studied by SEM and Pb UPD methods.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"26 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142222559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tuning Deposition Conditions for VN Thin Films Electrodes for Microsupercapacitors: Influence of the Thickness 微超级电容器 VN 薄膜电极沉积条件的调整:厚度的影响
IF 3.9 4区 工程技术 Q2 ELECTROCHEMISTRY Pub Date : 2024-09-10 DOI: 10.1149/1945-7111/ad75be
Allan Lebreton, Jérémy Barbé, Christophe Lethien, Jonathan N. Coleman and Thierry Brousse
Vanadium nitride is a highly promising material for micro-pseudocapacitors when used as a bifunctional thin film, i.e. an electrode material and a current collector, owing to its remarkable electrical and electrochemical properties. However, the specific limitations associated with high-rate cycling remain unclear. In this study, we evaluate how the characteristic time associated with charge/discharge of vanadium nitride films is modified with the film thicknesses using electrochemical impedance spectroscopy and cyclic voltammetry measurements coupled to a semi-empirical model commonly utilized to assess the high-rate behaviour of battery electrodes. Both methodologies are in good agreement and revealed that rate capability of this bi-functional material is limited by the VN electrical conductivity. To confirm this finding, VN thin films were sputtered on platinum current collectors, leading to a six-fold reduction in the characteristic time associated with charge/discharge of the current collectors/electrode material. This underscores the importance of using current collectors even for highly conductive electrode materials.
氮化钒具有显著的电学和电化学特性,因此在用作双功能薄膜(即电极材料和电流收集器)时,是一种极有前景的微型伪电容器材料。然而,与高速循环相关的具体限制因素仍不清楚。在这项研究中,我们利用电化学阻抗光谱和循环伏安法测量,并结合常用于评估电池电极高倍率行为的半经验模型,评估了氮化钒薄膜充放电相关的特征时间是如何随薄膜厚度的变化而变化的。这两种方法非常吻合,并揭示了这种双功能材料的速率能力受到 VN 导电性的限制。为了证实这一发现,我们在铂集流器上溅射了 VN 薄膜,结果发现集流器/电极材料的充放电特性时间缩短了六倍。这强调了使用集流器的重要性,即使是高导电性电极材料也不例外。
{"title":"Tuning Deposition Conditions for VN Thin Films Electrodes for Microsupercapacitors: Influence of the Thickness","authors":"Allan Lebreton, Jérémy Barbé, Christophe Lethien, Jonathan N. Coleman and Thierry Brousse","doi":"10.1149/1945-7111/ad75be","DOIUrl":"https://doi.org/10.1149/1945-7111/ad75be","url":null,"abstract":"Vanadium nitride is a highly promising material for micro-pseudocapacitors when used as a bifunctional thin film, i.e. an electrode material and a current collector, owing to its remarkable electrical and electrochemical properties. However, the specific limitations associated with high-rate cycling remain unclear. In this study, we evaluate how the characteristic time associated with charge/discharge of vanadium nitride films is modified with the film thicknesses using electrochemical impedance spectroscopy and cyclic voltammetry measurements coupled to a semi-empirical model commonly utilized to assess the high-rate behaviour of battery electrodes. Both methodologies are in good agreement and revealed that rate capability of this bi-functional material is limited by the VN electrical conductivity. To confirm this finding, VN thin films were sputtered on platinum current collectors, leading to a six-fold reduction in the characteristic time associated with charge/discharge of the current collectors/electrode material. This underscores the importance of using current collectors even for highly conductive electrode materials.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"99 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142222561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Oxygen-Controlled Electrocatalysis for Selective Dechlorination of 2-Chloro-5-Trichloromethyl Pyridine on Activated Ag Electrode 氧控制电催化在活化 Ag 电极上选择性脱氯 2-氯-5-三氯甲基吡啶
IF 3.9 4区 工程技术 Q2 ELECTROCHEMISTRY Pub Date : 2024-09-10 DOI: 10.1149/1945-7111/ad7534
Zhefei Zhao, Linlin Zhang, Minghao Chen, Ruopeng Yu, Xuyao Yao, Yinghua Xu, Youqun Chu, Xinbiao Mao and Huajun Zheng
Electrochemical selective dechlorination can be regarded as one of the most promising strategies for generating high-valued chemicals. In the electrochemical dechlorination process of 2-chloro-5-trichloromethylpyridine (TCMP), except the anticipated dechlorination products involving 2-chloro-5-dichloromethylpyridine (DCMP), 2-chloro-5-chloromethylpyridine (CCMP), and 2-chloro-5-methylpyridine (CMP), some unexpected oxygen-incorporated products (6-chloronicotinic acid (CNA) and 6-chloronicotinoyl methyl ester (MCN)) can be obtained. Consequently, understanding the electrochemical dechlorination behavior of TCMP is crucial. Our research revealed that the activated Ag electrodes in halide ion solution exhibit enhanced electrochemical activities for electrochemical dechlorination of TCMP, compared with the pure Ag owing to the increased active specific surface areas and charge transfer. Second, oxygen participation in the reaction is a necessary condition for the formation of oxygen-incorporated products. A 100% selectivity of oxygen-incorporated products can be obtained at the potential of −0.6 V vs Ag/AgCl. Conversely, insufficient oxygen may lead to the potential becoming the determining condition that affects the reaction pathways. A more negative potential (−1.2 V vs Ag/AgCl) is conducive to the formation of dechlorination products with 94.2% conversion and 100% selectivity. This study, for the first time, elucidates the electrocatalyst, atmosphere, and potential-dependent activity and selectivity for the two dechlorination pathways of TCMP.
电化学选择性脱氯可以说是生成高价值化学品的最有前途的策略之一。在 2-氯-5-三氯甲基吡啶(TCMP)的电化学脱氯过程中,除了涉及 2-氯-5-二氯甲基吡啶(DCMP)的预期脱氯产物外,2-氯-5-二氯甲基吡啶(CCMP)和 2-氯-5-三氯甲基吡啶(TCMP)的电化学选择性脱氯产物均可作为高附加值化学品、(CCMP)和 2-氯-5-甲基吡啶(CMP)外,还可以得到一些意想不到的氧掺杂产物(6-氯烟酸(CNA)和 6-氯烟酸甲酯(MCN))。因此,了解 TCMP 的电化学脱氯行为至关重要。我们的研究发现,与纯银相比,在卤化离子溶液中的活化银电极在 TCMP 的电化学脱氯过程中表现出更强的电化学活性,这是由于活性比表面积和电荷转移增加所致。其次,氧参与反应是形成氧结合产物的必要条件。与 Ag/AgCl 相比,在电位为 -0.6 V 时,氧结合产物的选择性为 100%。相反,氧气不足可能导致电位成为影响反应途径的决定性条件。更负的电位(-1.2 V vs Ag/AgCl)有利于形成脱氯产物,转化率为 94.2%,选择性为 100%。这项研究首次阐明了 TCMP 两种脱氯途径中的电催化剂、气氛以及电势对活性和选择性的影响。
{"title":"Oxygen-Controlled Electrocatalysis for Selective Dechlorination of 2-Chloro-5-Trichloromethyl Pyridine on Activated Ag Electrode","authors":"Zhefei Zhao, Linlin Zhang, Minghao Chen, Ruopeng Yu, Xuyao Yao, Yinghua Xu, Youqun Chu, Xinbiao Mao and Huajun Zheng","doi":"10.1149/1945-7111/ad7534","DOIUrl":"https://doi.org/10.1149/1945-7111/ad7534","url":null,"abstract":"Electrochemical selective dechlorination can be regarded as one of the most promising strategies for generating high-valued chemicals. In the electrochemical dechlorination process of 2-chloro-5-trichloromethylpyridine (TCMP), except the anticipated dechlorination products involving 2-chloro-5-dichloromethylpyridine (DCMP), 2-chloro-5-chloromethylpyridine (CCMP), and 2-chloro-5-methylpyridine (CMP), some unexpected oxygen-incorporated products (6-chloronicotinic acid (CNA) and 6-chloronicotinoyl methyl ester (MCN)) can be obtained. Consequently, understanding the electrochemical dechlorination behavior of TCMP is crucial. Our research revealed that the activated Ag electrodes in halide ion solution exhibit enhanced electrochemical activities for electrochemical dechlorination of TCMP, compared with the pure Ag owing to the increased active specific surface areas and charge transfer. Second, oxygen participation in the reaction is a necessary condition for the formation of oxygen-incorporated products. A 100% selectivity of oxygen-incorporated products can be obtained at the potential of −0.6 V vs Ag/AgCl. Conversely, insufficient oxygen may lead to the potential becoming the determining condition that affects the reaction pathways. A more negative potential (−1.2 V vs Ag/AgCl) is conducive to the formation of dechlorination products with 94.2% conversion and 100% selectivity. This study, for the first time, elucidates the electrocatalyst, atmosphere, and potential-dependent activity and selectivity for the two dechlorination pathways of TCMP.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"7 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142222400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of Sodium Chloride and Potassium Fluoride on Electrochemical Properties of Aluminum Copper Interdigital Structures 氯化钠和氟化钾对铝铜互层结构电化学性质的影响
IF 3.9 4区 工程技术 Q2 ELECTROCHEMISTRY Pub Date : 2024-09-09 DOI: 10.1149/1945-7111/ad7406
D. Nienhues, L. Müller and M. Nowottnick
This paper evaluates the electrochemical properties of aluminum (0.5 w%) copper alloy metallized test chip surfaces with interdigital structures and distances between 3 and 20 μm, regarding sodium chloride and potassium fluoride contamination in the range of 1011–1016 ions per cm2 at high humidity (85%) and high temperature (85 °C). These accelerated tests result in leakage currents and impedance values which show a significant change above a contamination limit value of 1014 ions per cm2 for both salts i.e., the leakage current starts to increase well above a few pico amperes, and the impedance decreases significantly. This contamination level can be seen as a turning point, after which devices can undergo for example signal shifts or corroded metal tracks over lifetime. But not only the start point of an increase in leakage current decides about the harmfulness of the contamination, other important influences are deliquescence and how high the leakage current gets at its maximum. Therefore, even with the same starting point, the risk evaluation is not the same for sodium chloride and potassium fluoride.
本文评估了在高湿度(85%)和高温(85 °C)条件下,铝(0.5 w%)铜合金金属化测试芯片表面的电化学特性,测试芯片表面具有间隙结构,间距在 3 至 20 μm 之间,氯化钠和氟化钾的污染范围为每平方厘米 1011 至 1016 个离子。这些加速测试结果表明,当两种盐的污染极限值超过每平方厘米 1014 个离子时,漏电流和阻抗值都会发生显著变化,即漏电流开始增加,远远超过几个皮安,阻抗也会明显下降。这一污染水平可被视为一个转折点,此后,器件在整个使用寿命期间会出现信号偏移或金属轨道腐蚀等问题。但决定污染有害性的不仅是泄漏电流增加的起点,其他重要影响因素还包括潮解和泄漏电流达到最大值时的高度。因此,即使起点相同,氯化钠和氟化钾的风险评估也不尽相同。
{"title":"Influence of Sodium Chloride and Potassium Fluoride on Electrochemical Properties of Aluminum Copper Interdigital Structures","authors":"D. Nienhues, L. Müller and M. Nowottnick","doi":"10.1149/1945-7111/ad7406","DOIUrl":"https://doi.org/10.1149/1945-7111/ad7406","url":null,"abstract":"This paper evaluates the electrochemical properties of aluminum (0.5 w%) copper alloy metallized test chip surfaces with interdigital structures and distances between 3 and 20 μm, regarding sodium chloride and potassium fluoride contamination in the range of 1011–1016 ions per cm2 at high humidity (85%) and high temperature (85 °C). These accelerated tests result in leakage currents and impedance values which show a significant change above a contamination limit value of 1014 ions per cm2 for both salts i.e., the leakage current starts to increase well above a few pico amperes, and the impedance decreases significantly. This contamination level can be seen as a turning point, after which devices can undergo for example signal shifts or corroded metal tracks over lifetime. But not only the start point of an increase in leakage current decides about the harmfulness of the contamination, other important influences are deliquescence and how high the leakage current gets at its maximum. Therefore, even with the same starting point, the risk evaluation is not the same for sodium chloride and potassium fluoride.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"32 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142222402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
State of Charge Estimation of Lithium-Ion Batteries Based on Fractional-Order Model with Mul-ti-Innovations Dual Cubature Kalman Filter Method 基于分数阶模型的锂离子电池电荷状态估计与多重创新双立方卡尔曼滤波法
IF 3.9 4区 工程技术 Q2 ELECTROCHEMISTRY Pub Date : 2024-09-09 DOI: 10.1149/1945-7111/ad75bb
Xin Li, Yangwanhao Song and Hengqi Ren
An accurate estimation of the lithium battery’s state of charge (SOC) is critical. The article proposes a dual fractional order multi-innovations cubature Kalman filter (DFOMICKF) algorithm for estimating lithium battery SOC. The algorithm adopts the idea of multiple time scales, where one of the FOMICKF is used to identify the circuit model parameters online in the macro time scale. Another FOMICKF is used to estimate the SOC in the micro time scale, and the circuit parameters updated online in real-time are passed into the estimation of the SOC filter to form an online joint estimation method of SOC and circuit parameters. Finally, multiple algorithms of DFOMICKF, FOMICKF, FOCKF, and CKF are compared and experimented under different working conditions to compare and analyze the estimated SOC errors. It is verified that the proposed algorithm can solve the problems of inaccuracy, poor convergence, and poor robustness of the traditional Kalman filtering algorithm for estimating SOC, which has good research value.
准确估计锂电池的充电状态(SOC)至关重要。文章提出了一种用于估计锂电池 SOC 的双分数阶多创新立方卡尔曼滤波器(DFOMICKF)算法。该算法采用了多时间尺度的思想,其中一个 FOMICKF 用于在宏观时间尺度上在线识别电路模型参数。另一个 FOMICKF 用于在微观时间尺度上估计 SOC,并将实时在线更新的电路参数传递到 SOC 滤波器的估计中,形成 SOC 和电路参数的在线联合估计方法。最后,对 DFOMICKF、FOMICKF、FOCKF 和 CKF 等多种算法进行了比较,并在不同工作条件下进行了实验,对比分析了估计 SOC 的误差。实验验证了所提出的算法可以解决传统卡尔曼滤波算法估计 SOC 误差大、收敛性差、鲁棒性差等问题,具有很好的研究价值。
{"title":"State of Charge Estimation of Lithium-Ion Batteries Based on Fractional-Order Model with Mul-ti-Innovations Dual Cubature Kalman Filter Method","authors":"Xin Li, Yangwanhao Song and Hengqi Ren","doi":"10.1149/1945-7111/ad75bb","DOIUrl":"https://doi.org/10.1149/1945-7111/ad75bb","url":null,"abstract":"An accurate estimation of the lithium battery’s state of charge (SOC) is critical. The article proposes a dual fractional order multi-innovations cubature Kalman filter (DFOMICKF) algorithm for estimating lithium battery SOC. The algorithm adopts the idea of multiple time scales, where one of the FOMICKF is used to identify the circuit model parameters online in the macro time scale. Another FOMICKF is used to estimate the SOC in the micro time scale, and the circuit parameters updated online in real-time are passed into the estimation of the SOC filter to form an online joint estimation method of SOC and circuit parameters. Finally, multiple algorithms of DFOMICKF, FOMICKF, FOCKF, and CKF are compared and experimented under different working conditions to compare and analyze the estimated SOC errors. It is verified that the proposed algorithm can solve the problems of inaccuracy, poor convergence, and poor robustness of the traditional Kalman filtering algorithm for estimating SOC, which has good research value.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"3 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142222399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Low-Temperature Water Electrolysis Under a Sustained pH-Gradient for Electrochemically-Induced Decarbonation of Limestone into Hydrated Lime 在持续 pH 值梯度下进行低温水电解,电化学诱导石灰石脱碳成水合石灰
IF 3.9 4区 工程技术 Q2 ELECTROCHEMISTRY Pub Date : 2024-09-09 DOI: 10.1149/1945-7111/ad73a6
Rémy Rouxhet, Maxime Loudeche, Ronny Santoro and Joris Proost
Lime holds considerable potential in diverse environmental applications. However, its current production remains highly carbon-intensive, emitting more than one ton of CO2 per ton of lime. To address this issue, recent studies have explored the concept of electrifying the decarbonation of limestone to produce hydrated lime. In this work, a two-compartment electrolysis cell capable of producing Ca(OH)2 has been tested at different currents. Precise pH and Ca2+ concentration measurements demonstrate that the electrolysis setup is able to dissolve CaCO3 and precipitate Ca(OH)2 with near-perfect efficiencies. Notably, it highlights that Faraday’s law and the concept of transport number can be applied to predict both the equilibrium and kinetic behavior of each step of the process in each of the two cell compartments. Moreover, the use of controlled batch additions of CaCO3 in the system, as opposed to one-time excess addition, was assessed to mitigate the fouling of the cationic exchange membrane used to separate the compartments. Finally, based on the experimental findings, key guidelines are proposed to achieve a perfect reaction stoichiometry for each step. These findings pave the way for a more sustainable and environmentally friendly approach to lime production.
石灰在各种环境应用中具有相当大的潜力。然而,目前石灰的生产仍然是高碳密集型的,每吨石灰排放的二氧化碳超过一吨。为了解决这个问题,最近的研究探索了石灰石脱碳电气化生产熟石灰的概念。在这项工作中,我们测试了一个能够在不同电流下生产 Ca(OH)2 的两室电解槽。精确的 pH 值和 Ca2+ 浓度测量结果表明,电解装置能够以接近完美的效率溶解 CaCO3 和沉淀 Ca(OH)2。值得注意的是,它强调了法拉第定律和传输数的概念可用于预测两个细胞隔室中每一步过程的平衡和动力学行为。此外,还评估了系统中 CaCO3 受控批量添加(而非一次性过量添加)的使用情况,以减轻用于分离隔室的阳离子交换膜的污垢。最后,根据实验结果,提出了实现每个步骤完美反应化学计量的关键准则。这些发现为采用更可持续、更环保的方法生产石灰铺平了道路。
{"title":"Low-Temperature Water Electrolysis Under a Sustained pH-Gradient for Electrochemically-Induced Decarbonation of Limestone into Hydrated Lime","authors":"Rémy Rouxhet, Maxime Loudeche, Ronny Santoro and Joris Proost","doi":"10.1149/1945-7111/ad73a6","DOIUrl":"https://doi.org/10.1149/1945-7111/ad73a6","url":null,"abstract":"Lime holds considerable potential in diverse environmental applications. However, its current production remains highly carbon-intensive, emitting more than one ton of CO2 per ton of lime. To address this issue, recent studies have explored the concept of electrifying the decarbonation of limestone to produce hydrated lime. In this work, a two-compartment electrolysis cell capable of producing Ca(OH)2 has been tested at different currents. Precise pH and Ca2+ concentration measurements demonstrate that the electrolysis setup is able to dissolve CaCO3 and precipitate Ca(OH)2 with near-perfect efficiencies. Notably, it highlights that Faraday’s law and the concept of transport number can be applied to predict both the equilibrium and kinetic behavior of each step of the process in each of the two cell compartments. Moreover, the use of controlled batch additions of CaCO3 in the system, as opposed to one-time excess addition, was assessed to mitigate the fouling of the cationic exchange membrane used to separate the compartments. Finally, based on the experimental findings, key guidelines are proposed to achieve a perfect reaction stoichiometry for each step. These findings pave the way for a more sustainable and environmentally friendly approach to lime production.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"10 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142222401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Framework Integrated with Flow Cell Experiments and Simulations for Understanding Etching in Chemical Conversion Treatments 与流池实验和模拟相结合的框架,用于了解化学转化处理中的蚀刻过程
IF 3.9 4区 工程技术 Q2 ELECTROCHEMISTRY Pub Date : 2024-09-08 DOI: 10.1149/1945-7111/ad7408
Junam Kwon and Kenji Amaya
In this study, a new framework integrates simulations and flow cell experimentation to quantitatively understand the mechanism of chemical treatment reactions. Using this framework, the mechanisms of etching reactions induced by weak and strong acids were specifically investigated. A flow cell system experiment was developed for the etching experiment. Two acids (HNO3 and HF) were used, along with HNO3 without electrolytes. Average flow velocities were measured, and the molar flux of Fe2+ ions was determined by sampling the solution passing through the flow cell and measuring the iron content by using inductively coupled plasma. A concentration field simulation of the etching reaction in the flow cell was conducted. The concentration field within the boundary layer was visualized to understand the mechanism of H+ ion supply to the metal surface. In the case of weak acid solutions, H+ ions are primarily supplied by dissociation. In contrast, they were supplied by diffusion in strong acid solutions. A boundary layer formed within 100 μm from the metal surface. The experimental and simulated molar flux of Fe2+ ions were compared. The molar flux attributed to weak acid etching was more than 10 times that attributed to strong acids. The reaction rate constant of the H+ reduction reaction was evaluated through a parameter study. The influence of spectator ions on the etching process was investigated. An experiment was conducted to compare the etching of iron plates using HNO3 solutions with different concentrations of spectator ion. The results confirmed that the higher the concentration of the spectator ion, the greater the etching amount. Numerical analysis revealed that the electric field in the electric migration term acts in a direction that impedes the movement of H+ ions to the metal surface. While it is already known that electric migration inhibits electrode reactions, this study enabled its quantitative visualization and evaluation.
在这项研究中,一个新的框架将模拟和流动池实验结合起来,以定量了解化学处理反应的机理。利用这一框架,具体研究了弱酸和强酸诱导的蚀刻反应机理。为蚀刻实验开发了一个流动池系统实验。实验中使用了两种酸(HNO3 和 HF)以及不含电解质的 HNO3。测量了平均流速,并通过对流经流动池的溶液取样和使用电感耦合等离子体测量铁含量,确定了 Fe2+ 离子的摩尔通量。对流动池中的蚀刻反应进行了浓度场模拟。对边界层内的浓度场进行了可视化,以了解金属表面的 H+ 离子供应机制。在弱酸溶液中,H+ 离子主要通过解离提供。与此相反,在强酸溶液中,它们是通过扩散提供的。在距离金属表面 100 μm 的范围内形成了一个边界层。对实验和模拟的 Fe2+ 离子摩尔通量进行了比较。弱酸蚀刻的摩尔通量是强酸蚀刻的 10 倍以上。通过参数研究评估了 H+ 还原反应的反应速率常数。研究了旁观离子对蚀刻过程的影响。实验比较了使用含有不同浓度旁离子的 HNO3 溶液对铁板进行蚀刻的情况。结果证实,旁观离子浓度越高,蚀刻量越大。数值分析表明,电迁移项中的电场作用方向阻碍了 H+ 离子向金属表面的移动。虽然人们已经知道电迁移会抑制电极反应,但这项研究使其定量可视化和评估成为可能。
{"title":"Framework Integrated with Flow Cell Experiments and Simulations for Understanding Etching in Chemical Conversion Treatments","authors":"Junam Kwon and Kenji Amaya","doi":"10.1149/1945-7111/ad7408","DOIUrl":"https://doi.org/10.1149/1945-7111/ad7408","url":null,"abstract":"In this study, a new framework integrates simulations and flow cell experimentation to quantitatively understand the mechanism of chemical treatment reactions. Using this framework, the mechanisms of etching reactions induced by weak and strong acids were specifically investigated. A flow cell system experiment was developed for the etching experiment. Two acids (HNO3 and HF) were used, along with HNO3 without electrolytes. Average flow velocities were measured, and the molar flux of Fe2+ ions was determined by sampling the solution passing through the flow cell and measuring the iron content by using inductively coupled plasma. A concentration field simulation of the etching reaction in the flow cell was conducted. The concentration field within the boundary layer was visualized to understand the mechanism of H+ ion supply to the metal surface. In the case of weak acid solutions, H+ ions are primarily supplied by dissociation. In contrast, they were supplied by diffusion in strong acid solutions. A boundary layer formed within 100 μm from the metal surface. The experimental and simulated molar flux of Fe2+ ions were compared. The molar flux attributed to weak acid etching was more than 10 times that attributed to strong acids. The reaction rate constant of the H+ reduction reaction was evaluated through a parameter study. The influence of spectator ions on the etching process was investigated. An experiment was conducted to compare the etching of iron plates using HNO3 solutions with different concentrations of spectator ion. The results confirmed that the higher the concentration of the spectator ion, the greater the etching amount. Numerical analysis revealed that the electric field in the electric migration term acts in a direction that impedes the movement of H+ ions to the metal surface. While it is already known that electric migration inhibits electrode reactions, this study enabled its quantitative visualization and evaluation.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"183 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142222403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bismuth Metal Porphyrin Framework Doped RuO2 Derived Bi2O3-RuO2@C Composites for Highly Selective CO2 Electroreduction 掺杂 RuO2 的铋金属卟啉框架衍生 Bi2O3-RuO2@C 复合材料用于高选择性二氧化碳电还原
IF 3.9 4区 工程技术 Q2 ELECTROCHEMISTRY Pub Date : 2024-09-08 DOI: 10.1149/1945-7111/ad7532
Mingran Yang, Yingchen Xu, Zhengcha Pang, Chenghan Yang, Jinqiang Huang, Min Zhu and Yiwei Zhang
In electrochemical reduction of carbon dioxide (CO2RR), the design of electrocatalysts with high efficiency and selectivity is very important and challenging. In this paper, a ternary composite consisting of ruthenium dioxide and bismuth metal porphyrin-based organic framework (Bi-TCPP MOF)-derived bismuth trioxide and C skeleton has been proposed (denoted as Bi2O3-RuO2@C). Nanoscale RuO2 and Bi2O3 particles are uniformly distributed on the C skeleton. The precursor bismuth metal porphyrin-based organic framework restricts the localized growth of Bi2O3 in the framework, while the unique, highly-conjugated system anchors the doped RuO2 particles, resulting in a uniform distribution of both active sites and hole-enrichment centers. Meanwhile, the Bi-TCPP MOF-derived carbon skeleton has good electrical conductivity, and the macroporous structure also facilitates the gas transport, which leads to the synthesis of Bi2O3-RuO2@C as an electrocatalyst for CO2RR and exhibits excellent catalytic performance and high selectivity for electrocatalytic carbon dioxide reduction to methane (CO2-CH4). The peak Faraday efficiency of Bi2O3-RuO2@C for catalyzing the reduction of CO2-CH4 can reach 66.95% when the doped RuO2 content is 20%. Importantly, this work opens up new horizons for metal ratio regulation in constructing efficient catalytic systems derived from MOFs.
在二氧化碳的电化学还原(CO2RR)过程中,设计具有高效率和高选择性的电催化剂非常重要,也极具挑战性。本文提出了一种由二氧化钌和金属卟啉铋有机框架(Bi-TCPP MOF)衍生的三氧化二铋和 C 骨架组成的三元复合材料(称为 Bi2O3-RuO2@C)。纳米级 RuO2 和 Bi2O3 颗粒均匀地分布在 C 骨架上。基于铋金属卟啉的前体有机骨架限制了 Bi2O3 在骨架中的局部生长,而独特的高度共轭体系锚定了掺杂的 RuO2 颗粒,从而使活性位点和空穴富集中心均匀分布。同时,Bi-TCPP MOF 衍生的碳骨架具有良好的导电性,大孔结构也有利于气体的传输,从而合成了 Bi2O3-RuO2@C 作为 CO2RR 的电催化剂,并在电催化二氧化碳还原成甲烷(CO2-CH4)中表现出优异的催化性能和高选择性。当掺杂的 RuO2 含量为 20% 时,Bi2O3-RuO2@C 催化 CO2-CH4 还原的峰值法拉第效率可达 66.95%。重要的是,这项研究为利用 MOFs 构建高效催化系统的金属配比调节开辟了新天地。
{"title":"Bismuth Metal Porphyrin Framework Doped RuO2 Derived Bi2O3-RuO2@C Composites for Highly Selective CO2 Electroreduction","authors":"Mingran Yang, Yingchen Xu, Zhengcha Pang, Chenghan Yang, Jinqiang Huang, Min Zhu and Yiwei Zhang","doi":"10.1149/1945-7111/ad7532","DOIUrl":"https://doi.org/10.1149/1945-7111/ad7532","url":null,"abstract":"In electrochemical reduction of carbon dioxide (CO2RR), the design of electrocatalysts with high efficiency and selectivity is very important and challenging. In this paper, a ternary composite consisting of ruthenium dioxide and bismuth metal porphyrin-based organic framework (Bi-TCPP MOF)-derived bismuth trioxide and C skeleton has been proposed (denoted as Bi2O3-RuO2@C). Nanoscale RuO2 and Bi2O3 particles are uniformly distributed on the C skeleton. The precursor bismuth metal porphyrin-based organic framework restricts the localized growth of Bi2O3 in the framework, while the unique, highly-conjugated system anchors the doped RuO2 particles, resulting in a uniform distribution of both active sites and hole-enrichment centers. Meanwhile, the Bi-TCPP MOF-derived carbon skeleton has good electrical conductivity, and the macroporous structure also facilitates the gas transport, which leads to the synthesis of Bi2O3-RuO2@C as an electrocatalyst for CO2RR and exhibits excellent catalytic performance and high selectivity for electrocatalytic carbon dioxide reduction to methane (CO2-CH4). The peak Faraday efficiency of Bi2O3-RuO2@C for catalyzing the reduction of CO2-CH4 can reach 66.95% when the doped RuO2 content is 20%. Importantly, this work opens up new horizons for metal ratio regulation in constructing efficient catalytic systems derived from MOFs.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"29 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142222404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Selectivity Study of Direct Seawater Electrolyzer Anode Catalysts Using the Rotating Ring-Disc Electrode Method 使用旋转环盘电极法研究直接海水电解槽阳极催化剂的选择性
IF 3.9 4区 工程技术 Q2 ELECTROCHEMISTRY Pub Date : 2024-09-06 DOI: 10.1149/1945-7111/ad7407
O. Horner, D. P. Wilkinson, E. L. Gyenge
Seawater electrolysis suffers from many issues that must be resolved before the technology can be scaled. The corrosive hypochlorite formation at the anode can damage the electrode and other electrolyzer components. Furthermore, hypochlorite is unstable and can decay, particularly when exposed to heat and metal ions, which could lead to erroneously high oxygen evolution reaction (OER) selectivity calculations in catalyst benchmarking experiments, resulting in poor catalyst and electrolyzer component selection. In this study, we used the rotating ring-disc electrode (RRDE) technique for the characterization of IrO2, NiO, Co3O4, RuO2, Pt/C, and PtRu electrocatalysts at near-neutral pH (8.4) in 0.5 M NaCl. The RRDE can overcome the challenge posed by thermocatalytic hypochlorite decay. IrO2 and PtRu were also studied over a range of chloride concentrations from 0.1 to 1 M. Our findings reveal that elevated temperatures (313 and 333 K) are conducive to higher OER selectivity, as the OER faradaic efficiency (FE) on IrO2 increased by 23% at 1.22 V vs SHE when the temperature was increased from 293 to 333 K. Increasing the chloride concentration from 0.1 to 1 M increased the OER current density by 40% and 200% on IrO2 and PtRu, respectively, indicating a synergistic relationship.
海水电解存在许多问题,必须先解决这些问题,才能扩大该技术的规模。阳极上形成的次氯酸盐具有腐蚀性,会损坏电极和其他电解槽部件。此外,次氯酸盐不稳定,特别是在受热和接触金属离子时会发生衰变,这可能导致催化剂基准实验中氧进化反应(OER)选择性计算错误,从而导致催化剂和电解槽组件选择不当。在本研究中,我们采用旋转环盘电极(RRDE)技术,在 0.5 M NaCl 溶液中以接近中性的 pH 值(8.4)表征了 IrO2、NiO、Co3O4、RuO2、Pt/C 和 PtRu 电催化剂。RRDE 可以克服次氯酸盐热催化衰变带来的挑战。我们的研究结果表明,温度升高(313 和 333 K)有利于提高 OER 的选择性,因为 IrO2 上的 OER 法拉第效率(FE)在 1.将氯化物浓度从 0.1 M 提高到 1 M,IrO2 和 PtRu 上的 OER 电流密度分别提高了 40% 和 200%,这表明两者之间存在协同关系。
{"title":"Selectivity Study of Direct Seawater Electrolyzer Anode Catalysts Using the Rotating Ring-Disc Electrode Method","authors":"O. Horner, D. P. Wilkinson, E. L. Gyenge","doi":"10.1149/1945-7111/ad7407","DOIUrl":"https://doi.org/10.1149/1945-7111/ad7407","url":null,"abstract":"Seawater electrolysis suffers from many issues that must be resolved before the technology can be scaled. The corrosive hypochlorite formation at the anode can damage the electrode and other electrolyzer components. Furthermore, hypochlorite is unstable and can decay, particularly when exposed to heat and metal ions, which could lead to erroneously high oxygen evolution reaction (OER) selectivity calculations in catalyst benchmarking experiments, resulting in poor catalyst and electrolyzer component selection. In this study, we used the rotating ring-disc electrode (RRDE) technique for the characterization of IrO<sub>2</sub>, NiO, Co<sub>3</sub>O<sub>4</sub>, RuO<sub>2</sub>, Pt/C, and PtRu electrocatalysts at near-neutral pH (8.4) in 0.5 M NaCl. The RRDE can overcome the challenge posed by thermocatalytic hypochlorite decay. IrO<sub>2</sub> and PtRu were also studied over a range of chloride concentrations from 0.1 to 1 M. Our findings reveal that elevated temperatures (313 and 333 K) are conducive to higher OER selectivity, as the OER faradaic efficiency (FE) on IrO<sub>2</sub> increased by 23% at 1.22 V vs SHE when the temperature was increased from 293 to 333 K. Increasing the chloride concentration from 0.1 to 1 M increased the OER current density by 40% and 200% on IrO<sub>2</sub> and PtRu, respectively, indicating a synergistic relationship.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"41 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142222426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Journal of The Electrochemical Society
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1