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Weakening Lithium-Ion Coordination in Poly(Ethylene Oxide)-Based Solid Polymer Electrolytes for High Performance Solid-State Batteries
IF 27.8 1区 材料科学
Advanced Energy Materials Pub Date : 2025-03-18 DOI: 10.1002/aenm.202405906
Ruirui Chang, Yingkang Liu, Yaguang Zhang, Yunyu Shi, Jingjing Tang, Zheng-Long Xu, Xiangyang Zhou, Juan Yang
{"title":"Weakening Lithium-Ion Coordination in Poly(Ethylene Oxide)-Based Solid Polymer Electrolytes for High Performance Solid-State Batteries","authors":"Ruirui Chang, Yingkang Liu, Yaguang Zhang, Yunyu Shi, Jingjing Tang, Zheng-Long Xu, Xiangyang Zhou, Juan Yang","doi":"10.1002/aenm.202405906","DOIUrl":"https://doi.org/10.1002/aenm.202405906","url":null,"abstract":"The high crystallinity of poly(ethylene oxide)-based solid polymer electrolytes (PEO-based SPEs) is viewed as a key barrier to their ambient-temperature performance. Conventional approaches to mitigate crystallinity necessitate elevated operation temperatures of 50–60 °C. Interestingly, this work indicates that the predominant factor limiting ambient-temperature performance is the robust coordination between lithium-ion (Li<sup>+</sup>) and ether oxygen (EO), rather than the crystallinity. By rationally tailoring the Li<sup>+</sup> concentration, this work effectively weakens the coordination strength, thereby enhancing the ambient-temperature electrochemical performance. An optimal SPE with EO: Li ratio of 9:1 exhibits remarkable ionic conductivity (1.76 × 10<sup>−4</sup> S cm<sup>−1</sup> at 35 °C), a high Li<sup>+</sup> transference number (0.486 at 35 °C), and superior adhesion to electrodes in compression-free pouch cells. The practical feasibility of the SPE is demonstrated in solid-state Li-LiFePO<sub>4</sub> cells achieving a specific capacity of 149.66 mAh g<sup>−1</sup> at 0.1 C and 35 °C and 90.5% capacity retention over 100 cycles. The electrolyte also exhibits compatibility with high-voltage cathodes of LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub> and LiNi<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>O<sub>2</sub> for high-energy Li-metal batteries. These new insights shed light on the rational regulation of SPEs in advanced solid-state batteries.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"125 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143641142","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}
引用次数: 0
Photoelectrochemical Synthesis of Adipic Acid by Selective Oxidation of Cyclohexanone (Adv. Energy Mater. 11/2025) 通过选择性氧化环己酮光电化学合成己二酸(Adv. Energy Mater. 11/2025)
IF 24.4 1区 材料科学
Advanced Energy Materials Pub Date : 2025-03-17 DOI: 10.1002/aenm.202570053
Shanshan Zhang, Lan Luo, Jiangrong Yang, Wangsong Chen, Yucong Miao, Ruikang Zhang, Zhenhua Li, Rengui Li, Mingfei Shao, Xue Duan
{"title":"Photoelectrochemical Synthesis of Adipic Acid by Selective Oxidation of Cyclohexanone (Adv. Energy Mater. 11/2025)","authors":"Shanshan Zhang,&nbsp;Lan Luo,&nbsp;Jiangrong Yang,&nbsp;Wangsong Chen,&nbsp;Yucong Miao,&nbsp;Ruikang Zhang,&nbsp;Zhenhua Li,&nbsp;Rengui Li,&nbsp;Mingfei Shao,&nbsp;Xue Duan","doi":"10.1002/aenm.202570053","DOIUrl":"https://doi.org/10.1002/aenm.202570053","url":null,"abstract":"<p><b>Photoelectrochemical Syntheses</b></p><p>In article number 2405052, Ruikang Zhang, Zhenhua Li, Mingfei Shao, and co-workers first reported a photoelectrochemical strategy to achieve the selective oxidation of cyclohexanone to adipic acid using a cooperative Ni(OH)<sub>2</sub>/TiO<sub>2</sub> photoanode with H<sub>2</sub>O as oxygen source. The new Ni<sup>2+δ</sup>─OH* reactive center was in situ generated on a Ni(OH)<sub>2</sub>/TiO<sub>2</sub> photoanode under illumination, which significantly facilitates the activation of C<sub>α</sub>─H and the subsequent C─C cleavage to produce adipic acid.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"15 11","pages":""},"PeriodicalIF":24.4,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aenm.202570053","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143639143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Harnessing Solar Energy for Ammonia Synthesis from Nitrogen and Seawater Using Oxynitride Semiconductors
IF 27.8 1区 材料科学
Advanced Energy Materials Pub Date : 2025-03-17 DOI: 10.1002/aenm.202406160
Yiyang Li, Mengqi Duan, Simson Wu, Robert A. Taylor, Shik Chi Edman Tsang
{"title":"Harnessing Solar Energy for Ammonia Synthesis from Nitrogen and Seawater Using Oxynitride Semiconductors","authors":"Yiyang Li, Mengqi Duan, Simson Wu, Robert A. Taylor, Shik Chi Edman Tsang","doi":"10.1002/aenm.202406160","DOIUrl":"https://doi.org/10.1002/aenm.202406160","url":null,"abstract":"Green ammonia evolution by photocatalytic means has gained significant attention over recent decades, however, the energy conversion efficiency remains unsatisfactory, and deep mechanistic insights are absent. Here in this work, this challenge is addressed by developing a photothermal system that synthesizes ammonia from nitrogen and natural seawater under simulated solar irradiation, employing ruthenium-doped barium tantalum oxynitride semiconductors. This method significantly enhances solar-to-ammonia conversion efficiency, providing a viable alternative to the energy-intensive Haber–Bosch process. Optimized at 240 °C, the system achieves an ammonia evolution rate of 5869 µmol g<sup>−1</sup> h<sup>−1</sup> in natural seawater. Moreover, detailed characterizations have shown that the use of seawater not only leverages an abundant natural resource but also improves the reaction kinetics and overall system stability. The catalysts maintain their activity and structural integrity over multiple cycles, demonstrating both the feasibility and the durability of this innovative system. Achieving a solar-to-ammonia efficiency of 13% and an overall energy conversion efficiency of 6.3%, this breakthrough highlights the potential to decentralize ammonia production, enhancing accessibility and sustainability. This approach combines the benefits of thermal and photocatalytic processes, marking a significant advancement in ammonia synthesis technology.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"6 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143635383","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}
引用次数: 0
A Medium-Entropy NASICON Cathode for Sodium-Ion Batteries Achieving High Energy Density Through Dual Enhancement of Voltage and Capacity
IF 27.8 1区 材料科学
Advanced Energy Materials Pub Date : 2025-03-17 DOI: 10.1002/aenm.202500448
Chenglong shi, Dilxat Muhtar, Xiaoyi Lu, Fangqing Liu, Xia Lu, Zhipeng Sun, Zaiping Guo
{"title":"A Medium-Entropy NASICON Cathode for Sodium-Ion Batteries Achieving High Energy Density Through Dual Enhancement of Voltage and Capacity","authors":"Chenglong shi, Dilxat Muhtar, Xiaoyi Lu, Fangqing Liu, Xia Lu, Zhipeng Sun, Zaiping Guo","doi":"10.1002/aenm.202500448","DOIUrl":"https://doi.org/10.1002/aenm.202500448","url":null,"abstract":"Na<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> (NVP) is recognized for its promising commercialization potential as a sodium-ion battery (SIB) cathode, due to its thermodynamic stability and open structure. However, the limited energy density remains a major obstacle to further advancement of NVP. Herein, a medium-entropy NASICON Na<sub>3.3</sub>V<sub>1.4</sub>Al<sub>0.3</sub>(MgCoNiCuZn)<sub>0.06</sub>(PO<sub>4</sub>)<sub>3</sub> (NVAMP-0.3) is designed by introducing Al<sup>3+</sup>, Mg<sup>2+</sup>, Co<sup>2+</sup>, Ni<sup>2+</sup>, Cu<sup>2+</sup>, and Zn<sup>2+</sup> to regulate configurational entropy. These NVAMP-0.3 achieve an elevated average operating voltage (3.33 V) and high capacity (138.1 mAh g<sup>−1</sup>, based on 2.3 Na<sup>+</sup>) through V<sup>3+</sup>/V<sup>4+</sup>/V<sup>5+</sup> multi-electron reactions. By simultaneously enhancing capacity and voltage, NVAMP-0.3 exhibits an impressive energy density of 460 Wh kg<sup>−1</sup>. Furthermore, NVAMP-0.3 demonstrates excellent low-temperature tolerance with a capacity retention rate of 94.6% after 300 cycles at −40 °C. In situ XRD unveils the underlying cause of the unique phenomenon where the solid-solution reaction accounts for the faster electrochemical reaction kinetics of the V<sup>4+</sup>/V<sup>5+</sup> compared to the V<sup>3+</sup>/V<sup>4+</sup> redox. DFT calculations indicate that NVAMP-0.3 possesses superior electronic conductivity and reduced Na<sup>+</sup> migration energy barriers. A pouch cell assembled with the NVAMP-0.3 cathode and hard carbon anode exhibits highly stable cycling (89.3% after 200 cycles at 1 C). This study provides valuable insights into developing NASICON-type cathodes with high energy densities for SIBs.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"9 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143635382","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}
引用次数: 0
Advancing Energy Materials by In Situ Atomic Scale Methods (Adv. Energy Mater. 11/2025)
IF 24.4 1区 材料科学
Advanced Energy Materials Pub Date : 2025-03-17 DOI: 10.1002/aenm.202570056
Christian Jooss, Michael Seibt, Martin Wenderoth, Oliver Bünermann, Ole Bunjes, Till Domröse, Christian Eckel, Francesca Falorsi, Christoph Flathmann, Monica Kolek Martinez de Azagra, Matthias Krüger, Jonas Lindner, Tobias Meyer, Claus Ropers, Ulrich Ross, Kai Rossnagel, Sreeju Sreekantan Nair Lalithambika, Simone Techert, Georg A. Traeger, Cynthia Volkert, R. Thomas Weitz, Alec M. Wodtke
{"title":"Advancing Energy Materials by In Situ Atomic Scale Methods (Adv. Energy Mater. 11/2025)","authors":"Christian Jooss,&nbsp;Michael Seibt,&nbsp;Martin Wenderoth,&nbsp;Oliver Bünermann,&nbsp;Ole Bunjes,&nbsp;Till Domröse,&nbsp;Christian Eckel,&nbsp;Francesca Falorsi,&nbsp;Christoph Flathmann,&nbsp;Monica Kolek Martinez de Azagra,&nbsp;Matthias Krüger,&nbsp;Jonas Lindner,&nbsp;Tobias Meyer,&nbsp;Claus Ropers,&nbsp;Ulrich Ross,&nbsp;Kai Rossnagel,&nbsp;Sreeju Sreekantan Nair Lalithambika,&nbsp;Simone Techert,&nbsp;Georg A. Traeger,&nbsp;Cynthia Volkert,&nbsp;R. Thomas Weitz,&nbsp;Alec M. Wodtke","doi":"10.1002/aenm.202570056","DOIUrl":"https://doi.org/10.1002/aenm.202570056","url":null,"abstract":"<p><b>Atomic Scale Methods</b></p><p>In-situ atomic scale methods offer unique insights into new and advanced energy materials. In article number 2404280, Christian Jooss, Michael Seibt, and co-workers cover topics from photovoltaics, dissipation losses, phase transitions to chemical energy conversion, selecting systems, where a local understanding of complex, inhomogeneous or interfacial phenomena down to the atomic scale and quantum level is required.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"15 11","pages":""},"PeriodicalIF":24.4,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aenm.202570056","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143638880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Understanding Cathode–Electrolyte Interphase Formation in Solid State Li-Ion Batteries via 4D-STEM (Adv. Energy Mater. 11/2025)
IF 24.4 1区 材料科学
Advanced Energy Materials Pub Date : 2025-03-17 DOI: 10.1002/aenm.202570057
Nikhila C. Paranamana, Andreas Werbrouck, Amit K. Datta, Xiaoqing He, Matthias J. Young
{"title":"Understanding Cathode–Electrolyte Interphase Formation in Solid State Li-Ion Batteries via 4D-STEM (Adv. Energy Mater. 11/2025)","authors":"Nikhila C. Paranamana,&nbsp;Andreas Werbrouck,&nbsp;Amit K. Datta,&nbsp;Xiaoqing He,&nbsp;Matthias J. Young","doi":"10.1002/aenm.202570057","DOIUrl":"https://doi.org/10.1002/aenm.202570057","url":null,"abstract":"<p><b>Li-Ion Batteries</b></p><p>In article number 2403904, Matthias J. Young and co-workers measure the atomic structure of cathode/electrolyte interphase layers in solid state batteries, revealing mechanistic insights into the reactions that lead to cell failure. Graphic design by Tessa Wells.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"15 11","pages":""},"PeriodicalIF":24.4,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aenm.202570057","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143638817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Orbital and Electrical Dual Function of Polymer Intercalant for Promoting NH4+ Storage in Vanadium Oxide Anode (Adv. Energy Mater. 11/2025)
IF 24.4 1区 材料科学
Advanced Energy Materials Pub Date : 2025-03-17 DOI: 10.1002/aenm.202570054
Yue Zhang, Zihang Huang, Lei Lei, Hua Fan, Xu Han, Hui Li, Tianyi Ma
{"title":"Orbital and Electrical Dual Function of Polymer Intercalant for Promoting NH4+ Storage in Vanadium Oxide Anode (Adv. Energy Mater. 11/2025)","authors":"Yue Zhang,&nbsp;Zihang Huang,&nbsp;Lei Lei,&nbsp;Hua Fan,&nbsp;Xu Han,&nbsp;Hui Li,&nbsp;Tianyi Ma","doi":"10.1002/aenm.202570054","DOIUrl":"https://doi.org/10.1002/aenm.202570054","url":null,"abstract":"<p><b>Ammonium-Ion Storage</b></p><p>In article number 2404732, Zihang Huang, Xu Han, Tianyi Ma, and co-workers fabricated a polyaniline-intercalated vanadium oxide material, and systematically investigated atomic orbital and electronic structure variations induced by polyaniline. The insertion of polyaniline promotes electrons transition, leading to enhanced electrical conductivity. These synergistic effects facilitate NH<sup>4+</sup> transfer, thereby enhancing the stability of aqueous devices and demonstrating significant potential for high-performance applications.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"15 11","pages":""},"PeriodicalIF":24.4,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aenm.202570054","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143639144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Construction of KF-Rich Solid Electrolyte Interfaces Based on the Electrodeposition Behavior of FEC Additives for Protecting K-Metal Anodes
IF 27.8 1区 材料科学
Advanced Energy Materials Pub Date : 2025-03-17 DOI: 10.1002/aenm.202500434
Lin Zhang, Jie Xu, Laiping Li, Haoran Fei, Qi Wu, Haoxiang Yu, Lei Yan, Jie Shu, Liyuan Zhang
{"title":"Construction of KF-Rich Solid Electrolyte Interfaces Based on the Electrodeposition Behavior of FEC Additives for Protecting K-Metal Anodes","authors":"Lin Zhang, Jie Xu, Laiping Li, Haoran Fei, Qi Wu, Haoxiang Yu, Lei Yan, Jie Shu, Liyuan Zhang","doi":"10.1002/aenm.202500434","DOIUrl":"https://doi.org/10.1002/aenm.202500434","url":null,"abstract":"Potassium metal (K) electrodes have attracted much attention as one of the most promising anode materials in potassium metal batteries. Nevertheless, dendrite growth and unstable solid electrolyte interface (SEI) have seriously hindered the practical application of potassium-metal anodes. Therefore, to address the aforementioned issue, a brand-new method is proposed: electrodeposition to construct a KF-rich artificial SEI layer, which can improve the stability and cycle time of the K metal anode. The homogeneous KF-rich SEI layer is formed via an in situ reaction between fresh K metal and the electrolyte additive fluoroethylene carbonate (FEC) during electrodeposition. This exerts tremendous effects on protecting the electrode and inhibiting the growth of dendrites. With the uniform and robust SEI layer, the potassium-metal symmetric battery has been stably cycled for more than 1400 h in a conventional carbonate electrolyte (0.8 <span>m</span> KPF<sub>6</sub>-based electrolyte (EC:DEC = 1:1, v/v)). In addition, K||Prussian blue (PPB) batteries with this conventional carbonate electrolyte can be operated for more than 200 cycles with an average Coulombic efficiency of 99.4%. This study sheds light on the construction mechanism of the KF-rich artificial SEI layer on K-metal anodes.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"31 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143635517","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}
引用次数: 0
Field-Relevant Degradation Mechanisms in Metal Halide Perovskite Modules
IF 27.8 1区 材料科学
Advanced Energy Materials Pub Date : 2025-03-16 DOI: 10.1002/aenm.202404518
Soňa Uličná, Jackson W. Schall, Steven C. Hayden, Nicholas P. Irvin, Timothy J. Silverman, Chengbin Fei, Xiaoqiang Shi, Rachael L. Arnold, Byron McDanold, Joshua Parker, Jinsong Huang, Joseph J. Berry, Joshua S. Stein, Dana B. Kern, Michael Owen-Bellini, Laura T. Schelhas
{"title":"Field-Relevant Degradation Mechanisms in Metal Halide Perovskite Modules","authors":"Soňa Uličná, Jackson W. Schall, Steven C. Hayden, Nicholas P. Irvin, Timothy J. Silverman, Chengbin Fei, Xiaoqiang Shi, Rachael L. Arnold, Byron McDanold, Joshua Parker, Jinsong Huang, Joseph J. Berry, Joshua S. Stein, Dana B. Kern, Michael Owen-Bellini, Laura T. Schelhas","doi":"10.1002/aenm.202404518","DOIUrl":"https://doi.org/10.1002/aenm.202404518","url":null,"abstract":"Field testing, failure analysis, and understanding of degradation mechanisms are essential to advancing metal halide perovskite (MHP) photovoltaic (PV) technology toward commercialization. Here, we present performance data from up to 1 year of outdoor testing of MHP modules in Golden, Colorado. The module encapsulation architecture and encapsulant materials have a significant impact on module reliability, with modules containing a polyolefin elastomer (POE) in addition to a desiccated polyisobutylene (PIB) edge seal outlasting modules with only a PIB edge seal or PIB blanket. Nondestructive and destructive characterization of the field-tested modules points to module scribes and interfaces as areas of potential mechanical weakness and chemical migration, resulting in shunt pathways and increased series resistance. Finally, indoor accelerated stress testing with light and elevated temperatures is performed, demonstrating failure with similar scribe degradation signatures as compared to the field-tested modules. Under both outdoor testing and light and elevated temperature conditions, electrochemical corrosion between the copper electrode and the mobile iodine ions appeared dominant, with a significant progression at the scribes that is speculated to result from an interplay between the initial laser damage and joule heating from enhanced ion diffusion under bias.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"5 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143635386","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}
引用次数: 0
Single-Atom Co Meets Remote Fe for a Synergistic Boost in Oxygen Electrocatalysis
IF 27.8 1区 材料科学
Advanced Energy Materials Pub Date : 2025-03-16 DOI: 10.1002/aenm.202500617
Zongge Li, Wenjun Kang, Jingkai Lin, Rui Li, Konggang Qu, Suyuan Zeng, Lei Wang, Fanpeng Meng, Huayang Zhang, Haibo Li
{"title":"Single-Atom Co Meets Remote Fe for a Synergistic Boost in Oxygen Electrocatalysis","authors":"Zongge Li, Wenjun Kang, Jingkai Lin, Rui Li, Konggang Qu, Suyuan Zeng, Lei Wang, Fanpeng Meng, Huayang Zhang, Haibo Li","doi":"10.1002/aenm.202500617","DOIUrl":"https://doi.org/10.1002/aenm.202500617","url":null,"abstract":"The oxygen electrocatalytic activity of transition metal catalysts can be tuned by tailoring their microstructure to optimize electronic configuration. Here, a one-step Coordination-Selective Synthesis strategy is developed to integrate Co single-atom sites and Fe-based nanoparticles within the same matrix, enabling long-range electronic interactions that enhance Co-N<sub>4</sub> reactivity and improve oxygen reduction reaction performance. X-ray absorption spectroscopy confirmed that remote Fe-based nanoparticles modulate the electron distribution at Co-N<sub>4</sub> sites. Structural characterizations reveal that the optimal catalyst, Co<sub>50%</sub>Fe<sub>50%</sub>-NC, contains metallic Fe, Fe<sub>3</sub>O<sub>4</sub>, and Fe<sub>4</sub>N species. Electrochemical measurements show that it achieves onset and half-wave potentials of 0.984 and 0.927 V versus RHE, surpassing Co<sub>100%</sub>-NC with only Co-N<sub>4</sub> sites. Additionally, it demonstrates efficient oxygen evolution reaction performance, achieving an overpotential of 298 mV at 20 mA cm<sup>−2</sup>, comparable to RuO<sub>2</sub>. Density functional theory calculations reveal that Fe<sub>4</sub>N optimizes O-containing intermediate adsorption/desorption, lowering the theoretical overpotential. Zn-air batteries assembled with Co<sub>50%</sub>Fe<sub>50%</sub>-NC exhibited superior performance to Pt/C, highlighting its potential for bifunctional oxygen electrocatalysis. This study provides an approach for designing high-performance catalysts by utilizing synergistic interactions between atomic and nanoscale metal species.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"60 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143635387","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}
引用次数: 0
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