Felix Ofori Boakye, Karim Harrath, Dantong Zhang, Ya You, Wenbin Zhang, Zheng Wang, Haining Zhang, Jiexin Zhu, Juncai Long, Jianqiu Zhu, Ghulam Yasin, Kwadwo Asare Owusu, Mohammad Tabish, Linjuan Zhang, Dingsheng Wang, Xiaofeng Shi, Zhongyi Jiang, Bin Wu, Liqiang Mai, Wei Zhao
Active and robust electrocatalysts for acidic oxygen evolution reaction (OER) are of crucial importance for efficient proton exchange membrane water electrolyzer (PEM-WE). Ruthenium (Ru) oxide has attracted considerable attention due to its high activity. However, the unsatisfying stability of Ru oxide in acidic OER environments hinders the application. Here, Ce-doped RuO2 nanoparticles are designed and supported on Co─N─C material (Ce@RuO2/CoNC) for acidic OER. It is demonstrated that Ce@RuO2/CoNC delivers a super low overpotential of 150 mV and an excellent stability of 1000 h at 10 mA cm−2, outperforming most previously reported Ru-based catalysts. The mass activity is estimated as 2365.5 AgRu−1 at 1.5 V (vs RHE), representing ≈2× advance compared to the best prior study. Furthermore, applied in a single-cell PEM-WE device, it can steadily operate for 1000 h at 200 mA cm−2. The studies show that Ce-doping and Co─N─C support synergistically enhance the activity and stability of Ru oxide by optimizing the free energies of OER intermediates and suppressing the dissolution of Ru.
活性强的酸性氧进化反应（OER）电催化剂对于高效质子交换膜水电解槽（PEM-WE）至关重要。氧化钌（Ru）因其高活性而备受关注。然而，氧化钌在酸性 OER 环境中的稳定性并不令人满意，这阻碍了其应用。本文设计了掺杂铈的 RuO2 纳米粒子，并将其支撑在 Co─N─C 材料（Ce@RuO2/CoNC）上，用于酸性 OER。研究表明，Ce@RuO2/CoNC 具有 150 mV 的超低过电位和 10 mA cm-2 下 1000 h 的出色稳定性，优于之前报道的大多数 Ru 基催化剂。在 1.5 V（相对于 RHE）电压下，质量活性估计为 2365.5 AgRu-1，与之前的最佳研究相比提高了≈2 倍。此外，在单电池 PEM-WE 器件中应用时，它可以在 200 mA cm-2 的条件下稳定运行 1000 小时。研究表明，通过优化 OER 中间产物的自由能和抑制 Ru 的溶解，Ce 掺杂和 Co─N─C 支持能协同提高氧化 Ru 的活性和稳定性。
{"title":"Synergistic Engineering of Dopant and Support of Ru Oxide Catalyst Enables Ultrahigh Performance for Acidic Oxygen Evolution","authors":"Felix Ofori Boakye, Karim Harrath, Dantong Zhang, Ya You, Wenbin Zhang, Zheng Wang, Haining Zhang, Jiexin Zhu, Juncai Long, Jianqiu Zhu, Ghulam Yasin, Kwadwo Asare Owusu, Mohammad Tabish, Linjuan Zhang, Dingsheng Wang, Xiaofeng Shi, Zhongyi Jiang, Bin Wu, Liqiang Mai, Wei Zhao","doi":"10.1002/adfm.202408714","DOIUrl":"https://doi.org/10.1002/adfm.202408714","url":null,"abstract":"Active and robust electrocatalysts for acidic oxygen evolution reaction (OER) are of crucial importance for efficient proton exchange membrane water electrolyzer (PEM-WE). Ruthenium (Ru) oxide has attracted considerable attention due to its high activity. However, the unsatisfying stability of Ru oxide in acidic OER environments hinders the application. Here, Ce-doped RuO<sub>2</sub> nanoparticles are designed and supported on Co─N─C material (Ce@RuO<sub>2</sub>/CoNC) for acidic OER. It is demonstrated that Ce@RuO<sub>2</sub>/CoNC delivers a super low overpotential of 150 mV and an excellent stability of 1000 h at 10 mA cm<sup>−2</sup>, outperforming most previously reported Ru-based catalysts. The mass activity is estimated as 2365.5 Ag<sub>Ru</sub><sup>−1</sup> at 1.5 V (vs RHE), representing ≈2× advance compared to the best prior study. Furthermore, applied in a single-cell PEM-WE device, it can steadily operate for 1000 h at 200 mA cm<sup>−2</sup>. The studies show that Ce-doping and Co─N─C support synergistically enhance the activity and stability of Ru oxide by optimizing the free energies of OER intermediates and suppressing the dissolution of Ru.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":null,"pages":null},"PeriodicalIF":19.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142360428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Masthead: (Adv. Funct. Mater. 40/2024)","authors":"","doi":"10.1002/adfm.202470233","DOIUrl":"https://doi.org/10.1002/adfm.202470233","url":null,"abstract":"Click on the article title to read more.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":null,"pages":null},"PeriodicalIF":19.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142360406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Many existing research focuses on the differences or performance comparisons between single-atom or small-sized nanocluster catalysts, but there is a lack of comprehensive research on the coupling relationship between the structure and activity and the mechanism of synergy. This study investigates the combined catalytic potential of cobalt single atoms (SAs) and nanoclusters (NCs) for enhanced peroxymonosulfate (PMS) activation to degrade norfloxacin (NFX). A novel CoSAs-NCs/CN/TiO2 catalyst is synthesized, featuring cobalt SAs and NCs uniformly dispersed on the carbon film wrapping TiO2, and the degradation efficiency of the NFX solution is almost completely degraded, with a mineralization rate of 76.35%. Density functional theory (DFT) calculations indicate that the synergistic interaction between cobalt SAs and NCs promotes more efficient PMS adsorption and activation and significantly reduces the activation energy barrier, which enhances electron transfer and increases reactive oxygen species (ROS) generation. This research highlights the robust and versatile nature of this novel catalyst system in addressing various contaminants. This study elucidates the activation mechanism of catalysts, providing new ideas for advanced oxidation processes (AOPs) in environmental remediation, linking the structure and performance of catalysts, and emphasizes the practicality and importance of the CoSAs-NCs/CN/TiO2 catalyst in effectively and long-term remediation of water pollutants.
{"title":"Synergistic Catalysis of Cobalt Single Atoms and Clusters Loaded on Carbon Film: Enhancing Peroxymonosulfate Activation for Degradation of Norfloxacin","authors":"Chenglin Hao, Tinghang Li, Yanjie Xie, Jia-Xi Zhou, Fengqin Chang, Liancong Luo, Qian Liu, Abdukader Abdukayum, Guangzhi Hu","doi":"10.1002/adfm.202414036","DOIUrl":"https://doi.org/10.1002/adfm.202414036","url":null,"abstract":"Many existing research focuses on the differences or performance comparisons between single-atom or small-sized nanocluster catalysts, but there is a lack of comprehensive research on the coupling relationship between the structure and activity and the mechanism of synergy. This study investigates the combined catalytic potential of cobalt single atoms (SAs) and nanoclusters (NCs) for enhanced peroxymonosulfate (PMS) activation to degrade norfloxacin (NFX). A novel Co<sub>SAs-NCs</sub>/CN/TiO<sub>2</sub> catalyst is synthesized, featuring cobalt SAs and NCs uniformly dispersed on the carbon film wrapping TiO<sub>2</sub>, and the degradation efficiency of the NFX solution is almost completely degraded, with a mineralization rate of 76.35%. Density functional theory (DFT) calculations indicate that the synergistic interaction between cobalt SAs and NCs promotes more efficient PMS adsorption and activation and significantly reduces the activation energy barrier, which enhances electron transfer and increases reactive oxygen species (ROS) generation. This research highlights the robust and versatile nature of this novel catalyst system in addressing various contaminants. This study elucidates the activation mechanism of catalysts, providing new ideas for advanced oxidation processes (AOPs) in environmental remediation, linking the structure and performance of catalysts, and emphasizes the practicality and importance of the Co<sub>SAs-NCs</sub>/CN/TiO<sub>2</sub> catalyst in effectively and long-term remediation of water pollutants.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":null,"pages":null},"PeriodicalIF":19.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142360414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Most of the reported self-healing materials focus on the structure and function recovery, the influence of the damage degree on the self-healing process has been rarely studied. In this study, an elastomer with an adaptive self-healing function is developed based on programmable dissociation of dynamic urea bonds. The stored entropy and reversible hydrogen bonding enable the elastomer with room-temperature self-healing performance as the scratch depth is less than 100 µm. Thermal treatment at 75 °C is capable of inducing the cleavage of secondary urea bonds, which accelerate the dissociation of the network, leading to the repair of the middle-size damage. Continuous increasing the temperature to 120 °C enables the dissociation of primary urea bonds, which causes further dissociation of the network, resulting in the repair of large-scale damage. This damage-adaptive self-healing performance can be well maintained in an aqueous environment, and obvious improvement in the healing rate is achieved due to the water-accelerated dissociation of urea bonds. The underwater self-healing rate is more than 360 times faster than that in the air. Incorporation of carbon nanotubes into the network enables remote self-healing function due to the photo-thermal transition after irradiated by NIR light, displaying great potential in underwater gas or liquid transportation.
已报道的自修复材料大多侧重于结构和功能的恢复，而损伤程度对自修复过程的影响却鲜有研究。本研究基于动态脲键的可编程解离，开发了一种具有自适应自愈合功能的弹性体。储存的熵和可逆氢键使这种弹性体具有室温自愈合性能，划痕深度小于 100 微米。75 °C 的热处理能够诱导次生脲键的裂解，加速网络的解离，从而修复中等尺寸的损伤。将温度持续升高到 120 °C，可使一级脲键解离，从而使网络进一步解离，导致大面积损伤的修复。这种损伤自适应自修复性能在水环境中也能很好地保持，而且由于水加速了脲键的解离，修复率也得到了明显提高。水下自愈合速度比空气中快 360 多倍。网络中加入碳纳米管后，在近红外光照射下会发生光热转换，从而实现远程自愈合功能，在水下气体或液体运输方面具有巨大潜力。
{"title":"Underwater Non-Contact and Ultra-Fast Adaptive Self-Healing Elastomers Based on Programmable Dissociation of Dynamic Bonds","authors":"Jialiang Lai, Miao Xie, Qifan Zhao, Chun Zhang, Zhanhua Wang, Hesheng Xia","doi":"10.1002/adfm.202415732","DOIUrl":"https://doi.org/10.1002/adfm.202415732","url":null,"abstract":"Most of the reported self-healing materials focus on the structure and function recovery, the influence of the damage degree on the self-healing process has been rarely studied. In this study, an elastomer with an adaptive self-healing function is developed based on programmable dissociation of dynamic urea bonds. The stored entropy and reversible hydrogen bonding enable the elastomer with room-temperature self-healing performance as the scratch depth is less than 100 µm. Thermal treatment at 75 °C is capable of inducing the cleavage of secondary urea bonds, which accelerate the dissociation of the network, leading to the repair of the middle-size damage. Continuous increasing the temperature to 120 °C enables the dissociation of primary urea bonds, which causes further dissociation of the network, resulting in the repair of large-scale damage. This damage-adaptive self-healing performance can be well maintained in an aqueous environment, and obvious improvement in the healing rate is achieved due to the water-accelerated dissociation of urea bonds. The underwater self-healing rate is more than 360 times faster than that in the air. Incorporation of carbon nanotubes into the network enables remote self-healing function due to the photo-thermal transition after irradiated by NIR light, displaying great potential in underwater gas or liquid transportation.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":null,"pages":null},"PeriodicalIF":19.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142360429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ming Dong, Aaron Soul, Yansong Li, Emiliano Bilotti, Han Zhang, Pietro Cataldi, Dimitrios G. Papageorgiou
Developing materials for electronics and sensing based on abundant and degradable materials is fundamental for transitioning both fields toward a more sustainable future. In the long run, this approach can unleash these fields from using petroleum-derived and/or scarce resources, possibly facilitating electronic waste (e-waste) management at the same time. Starch, one of the most abundant and versatile natural polymers, has shown great potential in the fabrication of degradable/transient devices. In this work, electrically conductive and mechanically robust starch-Ti3C2Tx MXene nanocomposites are successfully engineered, offering a promising advancement in sustainable electronics. The nanocomposite films exhibit remarkable tunability with varying MXene concentrations (from 0.69 to 2.42 vol%), allowing precise control over their properties. This tunability enables modifications in tensile strength (from 6.4 to 11.2 MPa), electrical conductivity (from 2.31 × 10−3 to 3.98 S m−1), and gauge factor. Such characteristics make these films ideal for various applications, including body movement monitoring, tactile sensing, handwriting recognition, and electronic smart skin. Unlike their petroleum-based counterparts, the starch-based films demonstrate significant biodegradability, breaking down within a month after being buried in soil. This rapid degradation highlights the potential of these transient composites for various electronics applications, offering an environmentally friendly alternative.
{"title":"Transient Starch-Based Nanocomposites for Sustainable Electronics and Multifunctional Sensing","authors":"Ming Dong, Aaron Soul, Yansong Li, Emiliano Bilotti, Han Zhang, Pietro Cataldi, Dimitrios G. Papageorgiou","doi":"10.1002/adfm.202412138","DOIUrl":"https://doi.org/10.1002/adfm.202412138","url":null,"abstract":"Developing materials for electronics and sensing based on abundant and degradable materials is fundamental for transitioning both fields toward a more sustainable future. In the long run, this approach can unleash these fields from using petroleum-derived and/or scarce resources, possibly facilitating electronic waste (e-waste) management at the same time. Starch, one of the most abundant and versatile natural polymers, has shown great potential in the fabrication of degradable/transient devices. In this work, electrically conductive and mechanically robust starch-Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene nanocomposites are successfully engineered, offering a promising advancement in sustainable electronics. The nanocomposite films exhibit remarkable tunability with varying MXene concentrations (from 0.69 to 2.42 vol%), allowing precise control over their properties. This tunability enables modifications in tensile strength (from 6.4 to 11.2 MPa), electrical conductivity (from 2.31 × 10<sup>−</sup><sup>3</sup> to 3.98 S m<sup>−1</sup>), and gauge factor. Such characteristics make these films ideal for various applications, including body movement monitoring, tactile sensing, handwriting recognition, and electronic smart skin. Unlike their petroleum-based counterparts, the starch-based films demonstrate significant biodegradability, breaking down within a month after being buried in soil. This rapid degradation highlights the potential of these transient composites for various electronics applications, offering an environmentally friendly alternative.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":null,"pages":null},"PeriodicalIF":19.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142360407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Peng Wang, Yaru Liu, Jie Cui, Long Zhao, Dong Li, Yunfei Du, Hao Li
The Li+ transport kinetics and electrochemical stability of advanced solid-state Li metal batteries (SLMBs) are seriously limited by the actual electrolyte compositions. Here, a novel polyether-based electrolyte (PTGDOX) is presented through in situ co-polymerization by integrating 1,3-dioxane with a multifunctional 1,3,5-triglycidyl isocyanurate additive. The isocyanurate group in PTGDOX not only provides abundant coordinating sites for Li+ transfer and restricts the movement of anions, but also prompts a beneficial inorganic-rich solid electrolyte interface on the Li electrode. As a result, PTGDOX exhibits a remarkably increased ionic conductivity of 0.48 mS cm−1 at 30 °C and a reasonable Li-ion transference number of 0.68, enabling the Li||Li symmetric cells to stably cycle for over 2000 h at 1 mAh cm−2. Meanwhile, the assembled Li||LiFePO4 exhibit a 97.4% capacity retention after 700 cycles at 3 C with excellent thermal stability. Moreover, PTGDOX also demonstrates excellent interfacial compatibility with high-voltage LiNi0.8Co0.1Mn0.1O2 cathode. As such, this work provides a facile and accessible strategy for designing interface-stable polymer electrolytes and achieving practical dendrite-free SLMBs.
{"title":"Isocyanurate-Derivative Enables Highly Compatible Poly-Dioxane Electrolyte for Dendrite-Free Li Metal Batteries","authors":"Peng Wang, Yaru Liu, Jie Cui, Long Zhao, Dong Li, Yunfei Du, Hao Li","doi":"10.1002/adfm.202414430","DOIUrl":"https://doi.org/10.1002/adfm.202414430","url":null,"abstract":"The Li<sup>+</sup> transport kinetics and electrochemical stability of advanced solid-state Li metal batteries (SLMBs) are seriously limited by the actual electrolyte compositions. Here, a novel polyether-based electrolyte (PTGDOX) is presented through in situ co-polymerization by integrating 1,3-dioxane with a multifunctional 1,3,5-triglycidyl isocyanurate additive. The isocyanurate group in PTGDOX not only provides abundant coordinating sites for Li<sup>+</sup> transfer and restricts the movement of anions, but also prompts a beneficial inorganic-rich solid electrolyte interface on the Li electrode. As a result, PTGDOX exhibits a remarkably increased ionic conductivity of 0.48 mS cm<sup>−1</sup> at 30 °C and a reasonable Li-ion transference number of 0.68, enabling the Li||Li symmetric cells to stably cycle for over 2000 h at 1 mAh cm<sup>−2</sup>. Meanwhile, the assembled Li||LiFePO<sub>4</sub> exhibit a 97.4% capacity retention after 700 cycles at 3 C with excellent thermal stability. Moreover, PTGDOX also demonstrates excellent interfacial compatibility with high-voltage LiNi<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>O<sub>2</sub> cathode. As such, this work provides a facile and accessible strategy for designing interface-stable polymer electrolytes and achieving practical dendrite-free SLMBs.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":null,"pages":null},"PeriodicalIF":19.0,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142330262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ke Ge, Zhenhong Wang, Jie Liu, Yongbiao Mu, Rui Wang, Xiaoqian Xu, Yichun Wang, Zhiyu Zou, Qing Zhang, Meisheng Han, Lin Zeng
Silicon (Si) anodes offer excellent lithium storage capacity for lithium-ion batteries but face practical limitations due to significant volume expansion and low intrinsic electrical conductivity. These issues lead to side reactions that consume the electrolyte and impede ion-electron transport, resulting in low areal loading (<2 mg cm⁻²) and restricted energy density. To address this, a scalable method is developed using spray drying of commercial graphite flakes (s-Gr) and nanosilicon particles (n-Si), followed by chemical vapor deposition to create microscale Si/C anodes (s-Gr/n-Si/VGs). Thin vertical graphene nanosheets (VGs) are grown on the surfaces and within the internal pores, forming a robust, micron-sized Si/C spherical composite material. The VGs construct the conductive network, allowing the electrodes to operate at high areal loadings without pulverization and promoting LiF-enriched solid electrolyte interphase for improved cycling stability. The s-Gr/n-Si/VGs maintain a capacity of 641.9 mAh g⁻¹ after 1000 cycles at 11.0 mg cm⁻², retaining 95.9% capacity. In pouch cells with NCM811 cathodes, the 5.0 Ah-level cells achieved 80.0% capacity retention after 510 cycles at 1.0 C. This research provides a feasible pathway for manufacturing high-performance, low-cost, and scalable Si/C anodes suitable for high-energy-density lithium-ion batteries.
{"title":"Constructing LiF-Enriched Solid Electrolyte Interface on Graphene Arrays with Abundant Edges on Microscale Si-C Anodes Toward High-Energy Lithium-Ion Batteries","authors":"Ke Ge, Zhenhong Wang, Jie Liu, Yongbiao Mu, Rui Wang, Xiaoqian Xu, Yichun Wang, Zhiyu Zou, Qing Zhang, Meisheng Han, Lin Zeng","doi":"10.1002/adfm.202414384","DOIUrl":"https://doi.org/10.1002/adfm.202414384","url":null,"abstract":"Silicon (Si) anodes offer excellent lithium storage capacity for lithium-ion batteries but face practical limitations due to significant volume expansion and low intrinsic electrical conductivity. These issues lead to side reactions that consume the electrolyte and impede ion-electron transport, resulting in low areal loading (<2 mg cm⁻²) and restricted energy density. To address this, a scalable method is developed using spray drying of commercial graphite flakes (s-Gr) and nanosilicon particles (n-Si), followed by chemical vapor deposition to create microscale Si/C anodes (s-Gr/n-Si/VGs). Thin vertical graphene nanosheets (VGs) are grown on the surfaces and within the internal pores, forming a robust, micron-sized Si/C spherical composite material. The VGs construct the conductive network, allowing the electrodes to operate at high areal loadings without pulverization and promoting LiF-enriched solid electrolyte interphase for improved cycling stability. The s-Gr/n-Si/VGs maintain a capacity of 641.9 mAh g⁻¹ after 1000 cycles at 11.0 mg cm⁻², retaining 95.9% capacity. In pouch cells with NCM811 cathodes, the 5.0 Ah-level cells achieved 80.0% capacity retention after 510 cycles at 1.0 C. This research provides a feasible pathway for manufacturing high-performance, low-cost, and scalable Si/C anodes suitable for high-energy-density lithium-ion batteries.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":null,"pages":null},"PeriodicalIF":19.0,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142330257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mingjun Chen, Jianbo Deng, Hulin Zhang, Xiang Zhang, Dukang Yan, Gengxin Yao, Liping Hu, Shuokun Sun, Jiupeng Zhao, Yao Li
Dual-band electrochromic smart windows (DESWs), capable of actively and selectively modulate visible (VIS) light and near-infrared (NIR) heat, have emerged as a practical technology for enhancing user comfort and reducing building energy consumption. However, the design and development of DESWs remain a significant challenge due to the difficulty in obtaining suitable materials and high-durability electrolytes. Here, the first all-solid-state DESW based on an orthorhombic oxygen-deficient tungsten oxide (o-WO3-x) film is presented. Benefiting from the synergistic effects of the efficient oxygen-vacancy-enhanced charge transfer process and the secure transfer pathway enabled by the orthorhombic crystal structure, the o-WO3-x film showcases remarkable dual-band electrochromic properties, including selective modulation of VIS light and NIR heat, large optical modulation (89.1%), rapid response time (tb/tc = 6.8/17.9 s), high coloration efficiency (155.92 cm2 C−1), and ultrastable cyclic performance (8000 cycles) even in acidic aqueous electrolyte. Furthermore, the all-solid-state DESWs incorporating o-WO3-x deliver a significant and stable dual-band electrochromic response with excellent thermal regulation and energy-saving capabilities. These findings underscore the considerable potential of o-WO3-x films and their all-solid-state smart windows in decreasing building energy consumption.
{"title":"Advanced Dual-Band Smart Windows: Inorganic All-Solid-State Electrochromic Devices for Selective Visible and Near-Infrared Modulation","authors":"Mingjun Chen, Jianbo Deng, Hulin Zhang, Xiang Zhang, Dukang Yan, Gengxin Yao, Liping Hu, Shuokun Sun, Jiupeng Zhao, Yao Li","doi":"10.1002/adfm.202413659","DOIUrl":"https://doi.org/10.1002/adfm.202413659","url":null,"abstract":"Dual-band electrochromic smart windows (DESWs), capable of actively and selectively modulate visible (VIS) light and near-infrared (NIR) heat, have emerged as a practical technology for enhancing user comfort and reducing building energy consumption. However, the design and development of DESWs remain a significant challenge due to the difficulty in obtaining suitable materials and high-durability electrolytes. Here, the first all-solid-state DESW based on an orthorhombic oxygen-deficient tungsten oxide (o-WO<sub>3-</sub><i><sub>x</sub></i>) film is presented. Benefiting from the synergistic effects of the efficient oxygen-vacancy-enhanced charge transfer process and the secure transfer pathway enabled by the orthorhombic crystal structure, the o-WO<sub>3-</sub><i><sub>x</sub></i> film showcases remarkable dual-band electrochromic properties, including selective modulation of VIS light and NIR heat, large optical modulation (89.1%), rapid response time (<i>t</i><sub>b</sub>/<i>t</i><sub>c</sub> = 6.8/17.9 s), high coloration efficiency (155.92 cm<sup>2</sup> C<sup>−1</sup>), and ultrastable cyclic performance (8000 cycles) even in acidic aqueous electrolyte. Furthermore, the all-solid-state DESWs incorporating o-WO<sub>3-</sub><i><sub>x</sub></i> deliver a significant and stable dual-band electrochromic response with excellent thermal regulation and energy-saving capabilities. These findings underscore the considerable potential of o-WO<sub>3-</sub><i><sub>x</sub></i> films and their all-solid-state smart windows in decreasing building energy consumption.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":null,"pages":null},"PeriodicalIF":19.0,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142330255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiangyu Gao, Miaomiao He, Wanxi Chen, Zuyao Wang, Yunfei Li, Ding Bai, Guangfu Yin, Rui Shu, Yi Deng, Weizhong Yang
Deferred diabetic skin healing is an ever-growing complication owing to the hyperglycemic microenvironment, which accelerates the generation of advanced glycated end products (AGEs) and provides a hotbed for pathogenic infection. Here, the H2S-evolving bio-heterojunction enzyme (BioHJzyme), which is consisted by MXene/FeS2 and glucose oxidase (GOx) is devised. It presents glutathione peroxidase (GPx)- and peroxidase (POD)-mimetic antibacterial activity for anti-pathogens and wound regeneration by AGEs depression. The GOx catalyzes glucose, resulting in reducing the bacterial nutrient and supplying H2O2. The POD-mimetic activity of the BioHJzyme catalyzes the H2O2 to hydroxyl radical (•OH) with a turnover number of 4.45 × 10−1 s−1, while the GPx-mimetic activity of it consumes glutathione for further •OH accumulation. The anti-pathogens can be enhanced by near infrared laser (NIR) irradiation owing to the efficient separation of electron-hole pairs originated from the heterostructure, which presents NIR-activatable •OH and 1O2 production. Moreover, the BioHJzyme evolves H2S in acidic environment, acting as an H2S donor, which protects cells around the wound from oxidative damage and AGEs, rescues mitochondrial respiration, improves the extracellular matrix deposition and ameliorates dysfunction of fibroblasts for diabetic skin regeneration through TGF-β/Smad pathway. The work provides a proof-of-concept for bacteria-invaded diabetic wound regeneration via H2S-evolving BioHJzyme.
{"title":"Diabetic Microenvironment-Unlocked BioHJzyme with H2S Evolution for Robust Anti-Pathogens and Hyperinflammatory Wound Regeneration Through TGF-β/Smad Pathway","authors":"Xiangyu Gao, Miaomiao He, Wanxi Chen, Zuyao Wang, Yunfei Li, Ding Bai, Guangfu Yin, Rui Shu, Yi Deng, Weizhong Yang","doi":"10.1002/adfm.202408236","DOIUrl":"https://doi.org/10.1002/adfm.202408236","url":null,"abstract":"Deferred diabetic skin healing is an ever-growing complication owing to the hyperglycemic microenvironment, which accelerates the generation of advanced glycated end products (AGEs) and provides a hotbed for pathogenic infection. Here, the H<sub>2</sub>S-evolving bio-heterojunction enzyme (BioHJzyme), which is consisted by MXene/FeS<sub>2</sub> and glucose oxidase (GOx) is devised. It presents glutathione peroxidase (GPx)- and peroxidase (POD)-mimetic antibacterial activity for anti-pathogens and wound regeneration by AGEs depression. The GOx catalyzes glucose, resulting in reducing the bacterial nutrient and supplying H<sub>2</sub>O<sub>2</sub>. The POD-mimetic activity of the BioHJzyme catalyzes the H<sub>2</sub>O<sub>2</sub> to hydroxyl radical (•OH) with a turnover number of 4.45 × 10<sup>−1</sup> s<sup>−1</sup>, while the GPx-mimetic activity of it consumes glutathione for further •OH accumulation. The anti-pathogens can be enhanced by near infrared laser (NIR) irradiation owing to the efficient separation of electron-hole pairs originated from the heterostructure, which presents NIR-activatable •OH and <sup>1</sup>O<sub>2</sub> production. Moreover, the BioHJzyme evolves H<sub>2</sub>S in acidic environment, acting as an H<sub>2</sub>S donor, which protects cells around the wound from oxidative damage and AGEs, rescues mitochondrial respiration, improves the extracellular matrix deposition and ameliorates dysfunction of fibroblasts for diabetic skin regeneration through TGF-β/Smad pathway. The work provides a proof-of-concept for bacteria-invaded diabetic wound regeneration via H<sub>2</sub>S-evolving BioHJzyme.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":null,"pages":null},"PeriodicalIF":19.0,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142330254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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