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Advancing in Situ synthesis of Zn3(OH)2V2O7·2H2O/Betalains nanocomposite for simultaneous enhancement of electrochemical performance and green energy storage in high-performance Li-Ion batteries and supercapacitors
IF 3.9 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-03-04 DOI: 10.1016/j.mseb.2025.118189
T.L. Soundarya , M Jayachandran , T Maiyalagan , B. Nirmala , G. Nagaraju
Metal vanadates are exceptional for electrochemical energy storage, and their nanocomposites outperform traditional metal oxides. Incorporating bio-inspired components with advanced designs improves performance, benefiting Li-ion batteries (LIBs) and supercapacitors for sustainable energy storage solutions (ESS). Hydrated metal vanadates are promising for the ESS owing to their large capacity, structure, low cost, and abundant resources. We present a new Zn3(OH)2V2O7·2H2O/Betalains nanocomposites (ZVH@Bn NCs) utilizing natural betalain pigment for green energy devices such as LIBs and supercapacitors for the first time. This is achieved through one-step synthesis through a water-soluble betalain extract-assisted low-temperature hydrothermal method. The study details the enhanced features of the composite, including improvements in morphology, electrical, optical, and electrochemical properties, which enhance Li+ storage processes. Betalains, acting as a stabilizing and capping agent, enhance the charge storage mechanism by preventing surface oxidation. They improve electrical conductivity by facilitating faster charge transfer and lowering the band gap of the NCs. With a high potential window of 2.4 V, ZVH@Bn as a supercapacitor exhibited stable cyclic voltammograms even at high scan rates (10,000 mV/s). The highest energy density and power density were obtained to be 13.53 Wh/kg and 1114.9 W/kg, respectively. ZVH@Bn NCs serve as an anode material for energy storage in the form of LIBs, with an initial discharge capacity of 1200 mAh/g. The specific capacity was found to be 742 mAh/g, even after 100 cycles at a 0.1C rate. Their stability, eco-friendliness, and efficiency suggest suitability for reliable, sustainable energy storage applications.
金属钒酸盐在电化学储能方面非常出色,其纳米复合材料的性能优于传统的金属氧化物。将生物启发成分与先进的设计相结合可提高性能,有利于可持续储能解决方案(ESS)中的锂离子电池(LIB)和超级电容器。水合金属钒酸盐具有容量大、结构好、成本低和资源丰富等优点,因此在可持续储能解决方案(ESS)中大有可为。我们首次提出了一种新型 Zn3(OH)2V2O7-2H2O/Betalains 纳米复合材料(ZVH@Bn NCs),该材料利用天然甜菜色素,可用于 LIB 和超级电容器等绿色能源设备。这是通过水溶性甜菜碱提取物辅助低温水热法一步合成实现的。该研究详细介绍了该复合材料的增强特性,包括形态、电学、光学和电化学性能的改善,从而增强了 Li+ 的存储过程。白桦脂作为一种稳定剂和封盖剂,通过防止表面氧化增强了电荷存储机制。它们能加快电荷转移并降低 NC 的带隙,从而提高导电性。作为超级电容器的 ZVH@Bn 具有 2.4 V 的高电位窗口,即使在高扫描速率(10,000 mV/s)下也能显示稳定的循环伏安图。最高能量密度和功率密度分别为 13.53 Wh/kg 和 1114.9 W/kg。ZVH@Bn NCs 可作为锂电池储能的阳极材料,其初始放电容量为 1200 mAh/g。即使以 0.1C 的速率循环 100 次,比容量也达到了 742 mAh/g。这种材料的稳定性、生态友好性和效率表明,它适用于可靠、可持续的能源储存应用。
{"title":"Advancing in Situ synthesis of Zn3(OH)2V2O7·2H2O/Betalains nanocomposite for simultaneous enhancement of electrochemical performance and green energy storage in high-performance Li-Ion batteries and supercapacitors","authors":"T.L. Soundarya ,&nbsp;M Jayachandran ,&nbsp;T Maiyalagan ,&nbsp;B. Nirmala ,&nbsp;G. Nagaraju","doi":"10.1016/j.mseb.2025.118189","DOIUrl":"10.1016/j.mseb.2025.118189","url":null,"abstract":"<div><div>Metal vanadates are exceptional for electrochemical energy storage, and their nanocomposites outperform traditional metal oxides. Incorporating bio-inspired components with advanced designs improves performance, benefiting Li-ion batteries (LIBs) and supercapacitors for sustainable energy storage solutions (ESS). Hydrated metal vanadates are promising for the ESS owing to their large capacity, structure, low cost, and abundant resources. We present a new Zn<sub>3</sub>(OH)<sub>2</sub>V<sub>2</sub>O<sub>7</sub>·2H<sub>2</sub>O/Betalains nanocomposites (ZVH@Bn NCs) utilizing natural betalain pigment for green energy devices such as LIBs and supercapacitors for the first time. This is achieved through one-step synthesis through a water-soluble betalain extract-assisted low-temperature hydrothermal method. The study details the enhanced features of the composite, including improvements in morphology, electrical, optical, and electrochemical properties, which enhance Li<sup>+</sup> storage processes. Betalains, acting as a stabilizing and capping agent, enhance the charge storage mechanism by preventing surface oxidation. They improve electrical conductivity by facilitating faster charge transfer and lowering the band gap of the NCs. With a high potential window of 2.4 V, ZVH@Bn as a supercapacitor exhibited stable cyclic voltammograms even at high scan rates (10,000 mV/s). The highest energy density and power density were obtained to be 13.53 Wh/kg and 1114.9 W/kg, respectively. ZVH@Bn NCs serve as an anode material for energy storage in the form of LIBs, with an initial discharge capacity of 1200 mAh/g. The specific capacity was found to be 742 mAh/g, even after 100 cycles at a 0.1C rate. Their stability, eco-friendliness, and efficiency suggest suitability for reliable, sustainable energy storage applications.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"317 ","pages":"Article 118189"},"PeriodicalIF":3.9,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bismuth-embedded columnar activated carbon for gaseous radiodine capture
IF 3.9 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-03-04 DOI: 10.1016/j.mseb.2025.118186
Hao Zou , Hailong Dong , Wanjiang You , Shilong Song , Lei Liao , Gaoling Liang , Ning Pan , Hao Lei , Xiaoqiang Wang
The bismuth-embedded columnar activated carbon (Bi-AC) composite was prepared by the method of self-reduction and investigated for trapping I2 and CH3I. Our findings showed that the bismuth-based compounds mainly existed as simple substance in Bi-AC. The elemental bismuth was regularly spherical in the shape, and mostly embedded on the surface of activated carbon, seldom inside of activated carbon. The capture capacities of I2 and CH3I by the Bi-AC composite was 569.0 ± 14.2 and 232.1 ± 17.7 mg/g, respectively, which was better than that of the commercial silver-based materials. I2 was trapped to form I5- and Bi(IO3)3, while CH3I was catalytically cleaved to form BiOI and I5-. The Bi-AC composite is expected be used as adsorbents of 129I to replace silver-based materials due to its high performance and low cost.
{"title":"Bismuth-embedded columnar activated carbon for gaseous radiodine capture","authors":"Hao Zou ,&nbsp;Hailong Dong ,&nbsp;Wanjiang You ,&nbsp;Shilong Song ,&nbsp;Lei Liao ,&nbsp;Gaoling Liang ,&nbsp;Ning Pan ,&nbsp;Hao Lei ,&nbsp;Xiaoqiang Wang","doi":"10.1016/j.mseb.2025.118186","DOIUrl":"10.1016/j.mseb.2025.118186","url":null,"abstract":"<div><div>The bismuth-embedded columnar activated carbon (Bi-AC) composite was prepared by the method of self-reduction and investigated for trapping I<sub>2</sub> and CH<sub>3</sub>I. Our findings showed that the bismuth-based compounds mainly existed as simple substance in Bi-AC. The elemental bismuth was regularly spherical in the shape, and mostly embedded on the surface of activated carbon, seldom inside of activated carbon. The capture capacities of I<sub>2</sub> and CH<sub>3</sub>I by the Bi-AC composite was 569.0 ± 14.2 and 232.1 ± 17.7 mg/g, respectively, which was better than that of the commercial silver-based materials. I<sub>2</sub> was trapped to form I<sub>5</sub><sup>-</sup> and Bi(IO<sub>3</sub>)<sub>3</sub>, while CH<sub>3</sub>I was catalytically cleaved to form BiOI and I<sub>5</sub><sup>-</sup>. The Bi-AC composite is expected be used as adsorbents of <sup>129</sup>I to replace silver-based materials due to its high performance and low cost.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"317 ","pages":"Article 118186"},"PeriodicalIF":3.9,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recent advances in proton-conducting solid oxide electrolysis cells
IF 3.9 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-03-04 DOI: 10.1016/j.mseb.2025.118188
Jianxiong Wang , Wei Chen , Yuhuan Wang , Jialu Wei , Wei Zhang , Chunwen Sun , Suping Peng
Proton-conducting solid oxide electrolysis cells (PCECs) is a kind of outstanding long-time energy storage technology for transforming electric energy into chemicals, especially for hydrogen production. Recently, PCEC technology has received much intensive research, as it has a relatively low activation energy for proton transfer, can operate at a lower temperature, and hydrogen can be separated more readily compared to the oxygen-ion-conducting solid oxide electrolysis cells (OC-SOECs) technology. However, the challenges posed by the degradation of electrolytes and oxygen electrodes severely constrain the commercialization of PCECs. In this review, we present the fundamental mechanism, discuss the main challenges for PCECs, and emphasize the recent development of electrolyte and electrode materials for solving the degradation. Additionally, the interfacial modification strategies for microstructure optimization and electrochemical performance enhancement are introduced. Importantly, the promising chemical application scenarios of PCECs are proposed. Finally, we also provide future research directions for the application of PCEC technology.
{"title":"Recent advances in proton-conducting solid oxide electrolysis cells","authors":"Jianxiong Wang ,&nbsp;Wei Chen ,&nbsp;Yuhuan Wang ,&nbsp;Jialu Wei ,&nbsp;Wei Zhang ,&nbsp;Chunwen Sun ,&nbsp;Suping Peng","doi":"10.1016/j.mseb.2025.118188","DOIUrl":"10.1016/j.mseb.2025.118188","url":null,"abstract":"<div><div>Proton-conducting solid oxide electrolysis cells (PCECs) is a kind of outstanding long-time energy storage technology for transforming electric energy into chemicals, especially for hydrogen production. Recently, PCEC technology has received much intensive research, as it has a relatively low activation energy for proton transfer, can operate at a lower temperature, and hydrogen can be separated more readily compared to the oxygen-ion-conducting solid oxide electrolysis cells (OC-SOECs) technology. However, the challenges posed by the degradation of electrolytes and oxygen electrodes severely constrain the commercialization of PCECs. In this review, we present the fundamental mechanism, discuss the main challenges for PCECs, and emphasize the recent development of electrolyte and electrode materials for solving the degradation. Additionally, the interfacial modification strategies for microstructure optimization and electrochemical performance enhancement are introduced. Importantly, the promising chemical application scenarios of PCECs are proposed. Finally, we also provide future research directions for the application of PCEC technology.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"317 ","pages":"Article 118188"},"PeriodicalIF":3.9,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of humidity on hydrothermally synthesised gallium oxide nanoparticles for ammonia gas sensing at room temperature
IF 3.9 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-03-04 DOI: 10.1016/j.mseb.2025.118195
Madhura N. Talwar , M.Mathan Kumar , B.R. Sweekar , G. Akshatha , A.P. Gnana Prakash
The GaOOH powders were synthesized by hydrothermal method using Gallium Nitrate Hydrate (Ga (NO3)3·xH2O) as precursor at 120 °C. Obtained product is calcinated at 1000 °C to get β-Gallium Oxide (β-Ga2O3). The resulting product is studied utilising a variety of characterisation methods, including UV–Vis spectroscopy, SEM, XRD, BET analysis and XPS. Following XRD analysis, the powder samples revealed polycrystalline nature and monoclinic crystalline structure. The micrographs of powder samples resulted from SEM displayed uniformly synthesized rhombohedral morphology. Surface area and the pore size distribution were found from BET analysis. A surface-sensitive method XPS was used to confirm the chemical states and their fundamental components of the synthesized Ga2O3 material. The evaporation process was used to pre-deposit glass substrate with an Inter Digitated Electrode pattern (IDE) of silver (Ag) before casting samples of synthesised β-Ga2O3 powder. At room temperature, the various amounts of ammonia (NH3) vapour were detected using these drop-coated thick films at various humidity levels. Films were sensitive to NH3 gas and marked a response of 160 % with quick response and recovery time of 42 s and 30 s respectively for 100 ppm. It can sense as low as 10 ppm of NH3 with response of 11 % at room temperature (RT) under 69 % relative humidity (RH).
{"title":"Impact of humidity on hydrothermally synthesised gallium oxide nanoparticles for ammonia gas sensing at room temperature","authors":"Madhura N. Talwar ,&nbsp;M.Mathan Kumar ,&nbsp;B.R. Sweekar ,&nbsp;G. Akshatha ,&nbsp;A.P. Gnana Prakash","doi":"10.1016/j.mseb.2025.118195","DOIUrl":"10.1016/j.mseb.2025.118195","url":null,"abstract":"<div><div>The GaOOH powders were synthesized by hydrothermal method using <strong>Gallium Nitrate Hydrate (Ga (NO<sub>3</sub>)<sub>3</sub></strong>·<strong>xH<sub>2</sub>O)</strong> as precursor at 120 °C. Obtained product is calcinated at 1000 °C to get β-Gallium Oxide (β-Ga<sub>2</sub>O<sub>3</sub>). The resulting product is studied utilising a variety of characterisation methods, including UV–Vis spectroscopy, SEM, XRD, <strong>BET analysis</strong> and XPS. Following XRD analysis, the powder samples revealed polycrystalline nature and monoclinic crystalline structure. The micrographs of powder samples resulted from SEM displayed uniformly synthesized rhombohedral morphology. <strong>Surface area and the pore size distribution were found from BET analysis</strong>. A surface-sensitive method XPS was used to confirm the chemical states and their fundamental components of the synthesized Ga<sub>2</sub>O<sub>3</sub> material. The evaporation process was used to pre-deposit glass substrate with an Inter Digitated Electrode pattern (IDE) of silver (Ag) before casting samples of synthesised β-Ga<sub>2</sub>O<sub>3</sub> powder. At room temperature, the various amounts of ammonia (NH<sub>3</sub>) vapour were detected using these drop-coated thick films at various humidity levels. Films were sensitive to NH<sub>3</sub> gas and marked a response of 160 % with quick response and recovery time of 42 s and 30 s respectively for 100 ppm. It can sense as low as 10 ppm of NH<sub>3</sub> with response of 11 % at <strong>room temperature</strong> (RT) under 69 % <strong>relative humidity</strong> (RH).</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"317 ","pages":"Article 118195"},"PeriodicalIF":3.9,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Calibration of P-bit for aligned stochastic outputs in probabilistic computing
IF 3.9 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-03-04 DOI: 10.1016/j.mseb.2025.118146
Keunho Soh , Ji Eun Kim , Suk Yeop Chun , Jung Ho Yoon
Probabilistic computing has emerged as an innovative alternative to quantum annealing for addressing combinatorial optimization problems at ambient temperature. This study introduces a strategy for implementing and calibrating probabilistic bits using a simple structure centered on an ion-motion-mediated volatile threshold-switching memristor. The threshold switching memristor exhibits stochastic switching properties with bias-dependent controllable probabilities, enabling high-speed outputs proportional to the input signals. The probabilistic bit, as the computational unit of probabilistic computing, is calibrated by adjusting the signal amplitude and pulse width. This process achieves consistent output probabilities across multiple devices despite the device-to-device variation inherently associated with ion-motion-dediated memristors. The calibration approach is validated through simulations of a probabilistic full subtractor operation, highlighting its efficacy in enhancing the operational accuracy and reliability. These findings underscore the potential of calibrated probabilistic bits in enhancing probabilistic computing systems.
{"title":"Calibration of P-bit for aligned stochastic outputs in probabilistic computing","authors":"Keunho Soh ,&nbsp;Ji Eun Kim ,&nbsp;Suk Yeop Chun ,&nbsp;Jung Ho Yoon","doi":"10.1016/j.mseb.2025.118146","DOIUrl":"10.1016/j.mseb.2025.118146","url":null,"abstract":"<div><div>Probabilistic computing has emerged as an innovative alternative to quantum annealing for addressing combinatorial optimization problems at ambient temperature. This study introduces a strategy for implementing and calibrating probabilistic bits using a simple structure centered on an ion-motion-mediated volatile threshold-switching memristor. The threshold switching memristor exhibits stochastic switching properties with bias-dependent controllable probabilities, enabling high-speed outputs proportional to the input signals. The probabilistic bit, as the computational unit of probabilistic computing, is calibrated by adjusting the signal amplitude and pulse width. This process achieves consistent output probabilities across multiple devices despite the device-to-device variation inherently associated with ion-motion-dediated memristors. The calibration approach is validated through simulations of a probabilistic full subtractor operation, highlighting its efficacy in enhancing the operational accuracy and reliability. These findings underscore the potential of calibrated probabilistic bits in enhancing probabilistic computing systems.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"317 ","pages":"Article 118146"},"PeriodicalIF":3.9,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microstructure, electrical, and transport properties: Graphene oxide reinforced poly (vinyl alcohol)-chitosan based polymer blend electrolytes
IF 3.9 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-03-04 DOI: 10.1016/j.mseb.2025.118137
Rohan N Sagar , V. Ravindrachary , Shreedatta Hegde
In this present work, graphene oxide (GO) was synthesized using modified Hummer’s method. The polyvinyl alcohol-chitosan (PVA-CS) and GO doped solid polymer blend nanocomposite film were prepared using solution cast method. FTIR study shows the shift in characteristic peaks of the pure polymer blend due to doping and a new peak is observed at 1734 cm−1 in GO (5 wt%) doped polymer composites. Optical absorption band is shifted from 206 nm to 237 nm with an increase in GO concentration to 5 wt% and the Eg value decreased from 4.69 eV to 2.32 eV for 5 wt% GO concentration. X-ray diffraction study indicates the crystalline nature of the PVA-CS increases with GO concentration. SEM images show the surface roughness of PVA-CS increases upon GO doping. Impedance plots revealed that the resistive component and the relaxation time decreases with GO concentration. The highest conductivity of 2.83 X 10-4 Scm−1 is observed for 5 wt% GO concentration. The transport property shows that the ions are the majority conducting charge carriers in this composites.
{"title":"Microstructure, electrical, and transport properties: Graphene oxide reinforced poly (vinyl alcohol)-chitosan based polymer blend electrolytes","authors":"Rohan N Sagar ,&nbsp;V. Ravindrachary ,&nbsp;Shreedatta Hegde","doi":"10.1016/j.mseb.2025.118137","DOIUrl":"10.1016/j.mseb.2025.118137","url":null,"abstract":"<div><div>In this present work, graphene oxide (GO) was synthesized using modified Hummer’s method. The polyvinyl alcohol-chitosan (PVA-CS) and GO doped solid polymer blend nanocomposite film were prepared using solution cast method. FTIR study shows the shift in characteristic peaks of the pure polymer blend due to doping and a new peak is observed at 1734 cm<sup>−1</sup> in GO (5 wt%) doped polymer composites. Optical absorption band is shifted from 206 nm to 237 nm with an increase in GO concentration to 5 wt% and the E<sub>g</sub> value decreased from 4.69 eV to 2.32 eV for 5 wt% GO concentration. X-ray diffraction study indicates the crystalline nature of the PVA-CS increases with GO concentration. SEM images show the surface roughness of PVA-CS increases upon GO doping. Impedance plots revealed that the resistive component and the relaxation time decreases with GO concentration. The highest conductivity of 2.83 X 10<sup>-4</sup> Scm<sup>−1</sup> is observed for 5 wt% GO concentration. The transport property shows that the ions are the majority conducting charge carriers in this composites.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"317 ","pages":"Article 118137"},"PeriodicalIF":3.9,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stretchable, tough, self-healing, antifreezing, and multifunctional nanocellulose-based hydrogel for wearable monitoring of human motion
IF 3.9 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-03-04 DOI: 10.1016/j.mseb.2025.118175
Kejin Yu, Lina Yang, Siyu Zhang, Ning Zhang, He Liu
Hydrogels are among the most promising flexible sensing materials, exhibiting extensive applications in wearable devices, human health monitoring, robotics, etc. Currently, hydrogels that are stretchable, self-healing, antifreezing, and conductive have become the focus of research on wearable sensors. However, integrating high tensile strength, self-healing, frost resistance, and satisfactory mechanical properties into a conductive hydrogel remains challenging. Herein, soy hull nanocellulose, graphene oxide, and CaCl2 were integrated into a polyvinyl alcohol–chitosan framework through green physical-crosslinking and ionic-crosslinking methods to build a porous three-dimensional network structure and develop a strong, tough, self-healing, antifreezing, and multifunctional hydrogel. This hydrogel benefits from abundant hydrogen, ester, and metal coordination bonds and electrostatic interactions, which contribute to its exceptional tensile strength (709.48 %), viscoelasticity (1081.71 kPa), mechanical strength (tensile strength = 4.91 MPa and compressive strength = 5.11 MPa), conductivity (5.11 S/m), and frost resistance (−35 ℃). Moreover, it exhibits high sensitivity with a measurement factor of 7.14 and maintains impressive electrical stability after 800 cycles of stretching at room temperature (25 ℃) and a low temperature (−35 ℃). Further, this hydrogel is used for applications such as human limb bending and heart rate monitoring. Overall, this research offers a promising approach for developing sustainable and multifunctional hydrogels as well as provides notable insights with regard to flexible wearable sensors.
{"title":"Stretchable, tough, self-healing, antifreezing, and multifunctional nanocellulose-based hydrogel for wearable monitoring of human motion","authors":"Kejin Yu,&nbsp;Lina Yang,&nbsp;Siyu Zhang,&nbsp;Ning Zhang,&nbsp;He Liu","doi":"10.1016/j.mseb.2025.118175","DOIUrl":"10.1016/j.mseb.2025.118175","url":null,"abstract":"<div><div>Hydrogels are among the most promising flexible sensing materials, exhibiting extensive applications in wearable devices, human health monitoring, robotics, etc. Currently, hydrogels that are stretchable, self-healing, antifreezing, and conductive have become the focus of research on wearable sensors. However, integrating high tensile strength, self-healing, frost resistance, and satisfactory mechanical properties into a conductive hydrogel remains challenging. Herein, soy hull nanocellulose, graphene oxide, and CaCl<sub>2</sub> were integrated into a polyvinyl alcohol–chitosan framework through green physical-crosslinking and ionic-crosslinking methods to build a porous three-dimensional network structure and develop a strong, tough, self-healing, antifreezing, and multifunctional hydrogel. This hydrogel benefits from abundant hydrogen, ester, and metal coordination bonds and electrostatic interactions, which contribute to its exceptional tensile strength (709.48 %), viscoelasticity (1081.71 kPa), mechanical strength (tensile strength = 4.91 MPa and compressive strength = 5.11 MPa), conductivity (5.11 S/m), and frost resistance (−35 ℃). Moreover, it exhibits high sensitivity with a measurement factor of 7.14 and maintains impressive electrical stability after 800 cycles of stretching at room temperature (25 ℃) and a low temperature (−35 ℃). Further, this hydrogel is used for applications such as human limb bending and heart rate monitoring. Overall, this research offers a promising approach for developing sustainable and multifunctional hydrogels as well as provides notable insights with regard to flexible wearable sensors.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"317 ","pages":"Article 118175"},"PeriodicalIF":3.9,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The influence of microstructural evolution on performance degradation in solid oxide fuel cells
IF 3.9 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-03-03 DOI: 10.1016/j.mseb.2025.118187
Yuqing Shao, Junjie Shen, He Ren, Liwei Zhao, Ziyu Xue
The microstructure evolution effects performance degradation of solid oxide fuel cells (SOFCs) under elevated temperatures. The microstructural evolution, including elemental diffusion, phase changes, and Ni agglomeration, is studied via X-ray diffraction (XRD) and scanning electron microscopy-energy dispersive spectrometer (SEM-EDS) techniques. The ohmic resistance and polarization impedance, including activation polarization impedance and concentration resistance, causing the performance degradation, are estimated using electrochemical impedance spectroscopy (EIS) and distribution of relaxation time (DRT) techniques. The voltage gradually decreases from 0.9  V, at the beginning of the load, to 0.75  V after 240  h of service. The formation of pores at the (La0.6Sr0.4Co0.2Fe0.8O3-δ) LSCF/(Gd0.1Ce0.9O2-δ) GDC interface and cracks at the (8 mol% Y2O3-stabilized ZrO2) YSZ/NiO-YSZ interface induce the increase in ohmic resistance. The increase in activation polarization resistance is attributed to the formation of the SrZrO3 phase and Gd2(Zr1-xCex)2O7, at the YSZ/GDC interface, and the redistribution and coarsening of Ni. The formation of Co– or Fe-based oxides in the LSCF layer slightly increases the concentration polarization impedance.
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引用次数: 0
Temperature dependent sono-photocatalysis via optimized N,S-codoped carbon quantum dots@MOF: MIL-88B composite for Cr(VI) reduction and dye degradation
IF 3.9 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-03-01 DOI: 10.1016/j.mseb.2025.118178
Umme Habiba , Mumtaz Ali , Muhammad Imran Yousaf
Fast industrialization influences numerous sectors, including freshwater resources contaminated with toxic substances, which is responsible for the sharp increase in pollution. Metal-organic frameworks (MIL-88B) and the sono-photocatalysis method can remove these organic and inorganic pollutants. However, their fast recombination limits the photo & sono-photocatalytic performance. Therefore, Nitrogen and Sulfur co-doped carbon quantum dots (N,S-CQDs-doped) MIL-88B were designed here, to enhance the charge separation and associated catalysis, The crystal structure of N,S-CQDs was controlled by adjusting the synthesis temperature and compatibility of different degree of crystallinity was analyzed for composite formation with MIL-88B. N,S-CQDs synthesized at 140 °C showed better performance in composite, which was 82 % and 92 % higher than undoped MIL-88B for photo & sono-photocatalysis, respectively. However, in basic circumstances, the optimum N,S-CQDs@MIL-88B concentration showed 96 % degradation due to the significant impact of –OH groups in photocatalysis. Furthermore, the optimum N,S-CQDs@MIL-88B concentration was observed for 0.08 w/w%, resulting in 71 % and 87 % photo & Sono photocatalytic activity (PCA, SPCA) in 120 min. N,S-CQDs@MIL-88B also offers a 99 % Cr(VI) transition to Cr(III), demonstrating how it applies to organic and inorganic substances. The better performance composite is due to better light absorbance and charge separation, as confirmed by optical properties.
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引用次数: 0
Polymeric styrene–divinylbenzene resin Amberlyst-15: A novel, smart and alternative adsorbent for the removal of cationic methylene blue dye from aqueous solution
IF 3.9 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-03-01 DOI: 10.1016/j.mseb.2025.118174
Ayse Sarısoylu Nart , Hülya Silah
In this study, the removal of methylene blue, which is frequently used in textile industry, from aqueous solution under appropriate adsorption conditions was investigated for the first time using Amberlyst-15, a polymeric styrene–divinylbenzene resin as adsorbent. Adsorption studies were carried out under different experimental conditions such as pH, contact time, initial dye concentration, adsorbent amount and temperature. The highest removal percentage in methylene blue removal studies with Amberlyst-15 was computed as 98.90 % for 100 ppm methylene blue using 1.0 g/L adsorbent. Adsorption isotherm data were analyzed using different isotherm models and isotherm constants were calculated. It was seen that the performed isotherm studies were compatible with the Langmuir model. The maximum adsorption capacity calculated by using the Langmuir isotherm equation was 178.57 mg/g for Amberlyst-15. Adsorption kinetic studies were evaluated with pseudo-first order, pseudo-second order and intraparticle diffusion model. The suitability of pseudo-second order kinetic model was determined for Amberlyst-15. In addition, thermodynamic parameters were investigated and FTIR analysis was performed to determine the functional groups responsible for adsorption. These results suggested that Amberlyst-15 polymeric resin is a promising candidate and new adsorbent for methylene blue and other dyes removal from wastewater. This study is to reveal that Amberlyst-15 can be used as an alternative and efficient sorbent in the removal of other dyes and pollutant species in wastewater via examining the suitability of Amberlyst-15 in the removal of methylene blue.
{"title":"Polymeric styrene–divinylbenzene resin Amberlyst-15: A novel, smart and alternative adsorbent for the removal of cationic methylene blue dye from aqueous solution","authors":"Ayse Sarısoylu Nart ,&nbsp;Hülya Silah","doi":"10.1016/j.mseb.2025.118174","DOIUrl":"10.1016/j.mseb.2025.118174","url":null,"abstract":"<div><div>In this study, the removal of methylene blue, which is frequently used in textile industry, from aqueous solution under appropriate adsorption conditions was investigated for the first time using Amberlyst-15, a polymeric styrene–divinylbenzene resin as adsorbent. Adsorption studies were carried out under different experimental conditions such as pH, contact time, initial dye concentration, adsorbent amount and temperature. The highest removal percentage in methylene blue removal studies with Amberlyst-15 was computed as 98.90 % for 100 ppm methylene blue using 1.0 g/L adsorbent. Adsorption isotherm data were analyzed using different isotherm models and isotherm constants were calculated. It was seen that the performed isotherm studies were compatible with the Langmuir model. The maximum adsorption capacity calculated by using the Langmuir isotherm equation was 178.57 mg/g for Amberlyst-15. Adsorption kinetic studies were evaluated with pseudo-first order, pseudo-second order and intraparticle diffusion model. The suitability of pseudo-second order kinetic model was determined for Amberlyst-15. In addition, thermodynamic parameters were investigated and FTIR analysis was performed to determine the functional groups responsible for adsorption. These results suggested that Amberlyst-15 polymeric resin is a promising candidate and new adsorbent for methylene blue and other dyes removal from wastewater. This study is to reveal that Amberlyst-15 can be used as an alternative and efficient sorbent in the removal of other dyes and pollutant species in wastewater via examining the suitability of Amberlyst-15 in the removal of methylene blue.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"317 ","pages":"Article 118174"},"PeriodicalIF":3.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","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
Materials Science and Engineering: B
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