Advanced Energy Materials最新文献_第3页

Fast-Charging Long-Life Solid-State Sodium Metal Batteries Enabled by 2D Boron Nitride Nanosheets Based Quasi-Solid-State Electrolytes 基于二维氮化硼纳米片准固态电解质的快速充电长寿命固态钠金属电池

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-04-29 DOI: 10.1002/aenm.202500776

Jiayu Shen, Xiaoyu Shi, Feifei Xing, Endian Yang, Zhihao Ren, Shihao Liao, Shaohua Chen, Yanfeng Dong, Zhong-Shuai Wu

{"title":"Fast-Charging Long-Life Solid-State Sodium Metal Batteries Enabled by 2D Boron Nitride Nanosheets Based Quasi-Solid-State Electrolytes","authors":"Jiayu Shen, Xiaoyu Shi, Feifei Xing, Endian Yang, Zhihao Ren, Shihao Liao, Shaohua Chen, Yanfeng Dong, Zhong-Shuai Wu","doi":"10.1002/aenm.202500776","DOIUrl":"https://doi.org/10.1002/aenm.202500776","url":null,"abstract":"Solid-state sodium metal batteries (SSMBs) are considered as one highly competitive, high-energy-density yet safe energy storage device, however, the conventional quasi-solid-state electrolytes (QSSEs) still suffer from low ion conductivity and limited mechanical properties. Herein, a safe, fast-charging, and long-life SSMB is reported, utilizing photopolymerized ethoxylated trimethylpropane triacrylate based QSSEs (BN-QSSE) reinforced by 2D functional fillers of boron nitride nanosheets (BNNSs). The BNNSs with high Young's modulus in BN-QSSE can simultaneously accelerate and homogenize ion transport for uniform Na deposition and form a robust electrolyte-Na interface. Only a low proportion of 1% BNNSs in BN-QSSE can effectively realize high ionic conductivity of 1 × 10−2 mS cm−1, achieve a wide electrochemical stability window of 4.85 V (vs. Na/Na+), and substantively suppress Na dendrites. The resulting Na||BN-QSSE||Na symmetric batteries exhibit a long life of 600 h at 0.1 mA cm−2 and 0.1 mAh cm−2. The as-assembled Na3V2(PO4)3||BN-QSSE||Na full batteries display high capacities of 102 mAh g−1 at 1 C and 75 mAh g−1 at a high rate of 15 C, and maintain 93% of the initial discharge capacity after 1000 cycles at 10 C, outperforming most reported SSMBs. The developed 2D filler-reinforced QSSE provides new opportunities for high-performance SSMBs.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"25 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890284","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

Heteroepitaxy with PbSe Nanocrystals Enables Highly Stable Wide-Bandgap Perovskite Solar Cells PbSe纳米晶的异质外延使高稳定的宽禁带钙钛矿太阳能电池成为可能

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-04-29 DOI: 10.1002/aenm.202501312

Yuhui Jiang, Pengfei Guo, Ruihao Chen, Liming Du, Xingchao Shao, Xiuhai Zhang, Yu Zheng, Ning Jia, Zhiyu Fang, Luyao Ma, Xu Zhang, Zhen Li, Chunlei Yang, Yi Hou, Fen Lin, Weimin Li, Zhe Liu, Hongqiang Wang

{"title":"Heteroepitaxy with PbSe Nanocrystals Enables Highly Stable Wide-Bandgap Perovskite Solar Cells","authors":"Yuhui Jiang, Pengfei Guo, Ruihao Chen, Liming Du, Xingchao Shao, Xiuhai Zhang, Yu Zheng, Ning Jia, Zhiyu Fang, Luyao Ma, Xu Zhang, Zhen Li, Chunlei Yang, Yi Hou, Fen Lin, Weimin Li, Zhe Liu, Hongqiang Wang","doi":"10.1002/aenm.202501312","DOIUrl":"https://doi.org/10.1002/aenm.202501312","url":null,"abstract":"The perovskite-based tandem solar cell is one of the promising technological pathways to achieve high efficiency. However, the mixed-halide perovskite top cell is prone to phase segregation under continuous illumination, which leads to rapid degradation of the tandem device's overall power output. To tackle this challenge, ligand-free lead selenide (PbSe) nanocrystals are introduced into the precursor solution to promote the heteroepitaxial growth of mixed-halide perovskite. The incorporation of PbSe results in a high-quality perovskite film with excellent uniformity and low defect density, effectively suppressing halide phase segregation. This improved perovskite thin film enables the fabrication of wide-bandgap (1.68 eV) perovskite Cs0.05(FA0.77MA0.23)0.95Pb(I0.77Br0.23)3 p-i-n devices, achieving a power conversion efficiency (PCE) of 22.87% and a fill factor (FF) of 84.79%. After 1000 h of maximum power point (MPP) tracking under 1-sun continuous illumination, the perovskite solar cells retain 88% of their initial efficiency. Additionally, by mechanically stacking the semi-transparent perovskite on copper indium gallium selenide (CIGS) solar cells, the 4-terminal tandem cell has demonstrated a PCE of 28.24%.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"23 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143884974","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

Chelation Effect Induced Robust Biomass Protective Layer for Aqueous Zn Metal Anode 螯合效应诱导的金属锌水阳极生物质保护层

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-04-28 DOI: 10.1002/aenm.202501359

Hao Wu, Hong-Ting Yin, Jin-Lin Yang, Ruiping Liu

{"title":"Chelation Effect Induced Robust Biomass Protective Layer for Aqueous Zn Metal Anode","authors":"Hao Wu, Hong-Ting Yin, Jin-Lin Yang, Ruiping Liu","doi":"10.1002/aenm.202501359","DOIUrl":"https://doi.org/10.1002/aenm.202501359","url":null,"abstract":"The detrimental dendrite growth and hydrogen evolution corrosion on Zn metal anode greatly hinder the implement of aqueous zinc batteries. Constructing a stable solid electrolyte interphase (SEI) on Zn anode is considered an effective strategy to prolong the cells life. Herein, by using poly(N-[2-(3,4-dihydroxyphenyl)ethyl]-2-methylacrylamide) (PDMA) as a case study, the impact of Zn2+ chelation effect on SEI layer generation is systematically investigated. The DMA monomer tends to form a robust PDMA layer on Zn anode with a higher crosslinking degree with the assistant of Zn2+. The Zn─O interaction between Zn metal and PDMA guarantees the long-term protection efficiency of the SEI layer and uniformizes the Zn nucleation. Moreover, the Zn2+ desolvation can be propelled by the zincophilic hydroxyl groups in PDMA. As expected, the Zn symmetric cell with in-PDMA showcases an extended lifespan of over 3800 h. The Zn||NVO full cell maintains a capacity of 150 mAh g−1 after 1000 cycles at 1 A g−1. This work is believed to guide the future aqueous Zn anode design based on the protective layer engineering.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"37 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880208","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

1D ZrCl4 Matrices for Enhanced Ion Transport in Glassy Chloride Electrolytes 在玻璃氯化物电解质中增强离子输运的1D ZrCl4基质

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-04-28 DOI: 10.1002/aenm.202500913

Yongli Song, Shida Xue, Zijin Xu, Jianjun Fang, Zhaohuang Zhan, Yao-Hui Wang, Chuanxi Chen, Shunning Li, Tongchao Liu, Yong Yang, Luyi Yang, Feng Pan

{"title":"1D ZrCl4 Matrices for Enhanced Ion Transport in Glassy Chloride Electrolytes","authors":"Yongli Song, Shida Xue, Zijin Xu, Jianjun Fang, Zhaohuang Zhan, Yao-Hui Wang, Chuanxi Chen, Shunning Li, Tongchao Liu, Yong Yang, Luyi Yang, Feng Pan","doi":"10.1002/aenm.202500913","DOIUrl":"https://doi.org/10.1002/aenm.202500913","url":null,"abstract":"Designing a solid-state electrolyte (SSE) that combines the lithium-ion transport behavior found in liquid or solid polymer electrolytes with the high lithium-ion transference number characteristic of inorganic SSEs is an immensely appealing challenge. Herein, a cost-effective, chain-structured ZrCl4 is introduced as a hosting matrix, resembling polyethylene oxide (PEO), to facilitate the dissociation of lithium salts (e.g., LiCl, Li2SO4, and Li3PO4). The dissociated free Li-ions can be coordinated by the [ZrCl6] octahedra, forming fast ion-conducting pathways along ZrCl4 chains that achieve an ionic conductivity as high as 1.2 mS cm−1. Simultaneously, ZrCl4 serves as a Lewis acid, trapping anions and delivering a high lithium transference number approaching unit. The proposed electrolyte exhibits stable cycling performance when integrated into LiNi0.8Mn0.1Co0.1O2||Li-In cells. Moreover, this design strategy also extends to the synthesis of sodium-ion conductors, achieving a high ionic conductivity of 0.3 mS cm−1. Demonstrating a previously unreported lithium-ion conduction mechanism, the proposed ZrCl4-based electrolytes offer a versatile approach for tailoring advanced SSEs.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"140 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143884980","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

Record-Efficient Flexible Monolithic Perovskite–CIGS Tandem Solar Cell with VOC Exceeding 1.8 V on Polymer Substrate 聚合物衬底上VOC超过1.8 V的高效柔性单片钙钛矿- cigs串联太阳能电池

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-04-28 DOI: 10.1002/aenm.202403682

Liting Tang, Hui Yan, Li Zeng, Zhuo Xue, Zekai Luo, Jun Luo, Wuji Wang, Sheng Wang, Junbo Gong, Jianmin Li, Xudong Xiao

引用次数: 0

Scandium Induced Structural Disorder and Vacancy Engineering in Li3Sb – Superior Ionic Conductivity in Li3−3xScxSb 钪诱导的Li3Sb结构紊乱和空位工程——Li3−3xScxSb优异的离子电导率

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-04-28 DOI: 10.1002/aenm.202500683

Jingwen Jiang, Tobias Kutsch, Wilhelm Klein, Manuel Botta, Anatoliy Senyshyn, Robert J. Spranger, Volodymyr Baran, Leo van Wüllen, Hubert A. Gasteiger, Thomas F. Fässler

{"title":"Scandium Induced Structural Disorder and Vacancy Engineering in Li3Sb – Superior Ionic Conductivity in Li3−3xScxSb","authors":"Jingwen Jiang, Tobias Kutsch, Wilhelm Klein, Manuel Botta, Anatoliy Senyshyn, Robert J. Spranger, Volodymyr Baran, Leo van Wüllen, Hubert A. Gasteiger, Thomas F. Fässler","doi":"10.1002/aenm.202500683","DOIUrl":"https://doi.org/10.1002/aenm.202500683","url":null,"abstract":"Solid-state electrolytes are indispensable for all-solid-state batteries. Sulfide-based solid electrolytes, such as Li10MP2S12 (M = Ge, Sn) and Li6PS5X (X = Cl, Br, I), exhibit excellent ionic conductivities, with the fastest Li+ ion conductor, Li9.54[Si0.6Ge0.4]1.74P1.44S11.1Br0.3O0.6, achieving 32 mS cm−1 at room temperature. Phosphide-based solid electrolytes have recently shown great potential with diverse structures and variable ionic conductivities. This compound class is expanded to the heavier homolog Li3Sb, showing its transformation to a superionic conductor through aliovalent substitution of lithium with scandium. Resulting Li2.55Sc0.15Sb shows an unexpected high ionic conductivity of 42(6) mS cm−1 at 298 K under electron-blocking conditions in line with a very low activation energy of 17.6(8) kJ mol−1, representing the highest and lowest reported values, respectively, for a solid Li-ion conductor so far. Additionally, the compound exhibits a significant, but two orders of magnitude lower electronic conductivity making it a promising candidate for mixed ionic-electronic conductor (MIEC). The series of new compounds Li3−3xScxSb, maintains the β-Li3Sb structure up to a nominal composition of x(Sc) = 0.15, with Sc3+ ions occupying the tetrahedral voids of the face-centered cubic Sb anion arrangement and creating vacancies that facilitate efficient Li+ ion diffusion pathways. This work proposes a general design strategy for vacancy engineering in which replacement of Li with Sc in simple binary compounds has a direct impact on the ion mobility.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"24 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880216","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

Unveiling the Role of Critical Impurities in Spent LiFePO4 Cathodes for Scalable Direct Regeneration 揭示废LiFePO4阴极中关键杂质在可扩展直接再生中的作用

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-04-27 DOI: 10.1002/aenm.202406084

Luqi Zhang, Hongpeng Gao, Yuwei Zhu, Ich Tran, Wei Tang, Jiao Lin, Anthony U. Mu, Junlin Wu, Wei Li, Dennis Nordlund, Linqin Mu, Zheng Chen

{"title":"Unveiling the Role of Critical Impurities in Spent LiFePO4 Cathodes for Scalable Direct Regeneration","authors":"Luqi Zhang, Hongpeng Gao, Yuwei Zhu, Ich Tran, Wei Tang, Jiao Lin, Anthony U. Mu, Junlin Wu, Wei Li, Dennis Nordlund, Linqin Mu, Zheng Chen","doi":"10.1002/aenm.202406084","DOIUrl":"https://doi.org/10.1002/aenm.202406084","url":null,"abstract":"Direct regeneration offers a promising alternative to recycling End-of-Life (EoL) batteries by restoring metal elements and preserving the material structure, yet scaling these technologies to handle practical cathode black mass (CBM) with impurities remains challenging. This study investigates the evolution of impurities, including aluminum (Al), polyvinylidene difluoride (PVDF) binder, and residual carbon (C), during direct recycling of spent LiFePO4 (LFP) cathodes and their impact on electrochemical performance. Using various ex situ and in situ analyses, it is shown that the formation of lithium fluoride (LiF) during the traditional direct recycling process hinders lithium diffusion and deteriorates the reversible capacity. To address this major challenge, the combination of pH-controlled hydrothermal purification and the two-step sintering process is proposed effectively to regenerate spent LFP cathodes, eliminating the negative effect of Al and fluorine (F) impurities while mitigating any potential impacts of carbon residuals. The regenerated LFP from spent CBM achieves superior performance, retaining 152.5 mAh g−1 at 0.1 C and 133 mAh g−1 at 1 C with 98.7% capacity retention after 200 cycles. This approach is further validated using three distinct waste feedstocks from battery modules, enhancing impurity management and scalability in direct recycling. These findings present a sustainable and economically viable solution for large-scale LFP regeneration.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"17 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880211","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

Novel Fe‐Modulating Raney‐Ni Electrodes toward High‐Efficient and Durable AEM Water Electrolyzer 新型铁改性雷尼-镍电极实现高效耐用的 AEM 水电解槽

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-04-26 DOI: 10.1002/aenm.202501634

Tao Jiang, Xinge Jiang, Chongyang Jiang, Jian Wang, Yoann Danlos, Taikai Liu, Chunming Deng, Chaoyue Chen, Hanlin Liao, Vasileios Kyriakou

{"title":"Novel Fe‐Modulating Raney‐Ni Electrodes toward High‐Efficient and Durable AEM Water Electrolyzer","authors":"Tao Jiang, Xinge Jiang, Chongyang Jiang, Jian Wang, Yoann Danlos, Taikai Liu, Chunming Deng, Chaoyue Chen, Hanlin Liao, Vasileios Kyriakou","doi":"10.1002/aenm.202501634","DOIUrl":"https://doi.org/10.1002/aenm.202501634","url":null,"abstract":"Anion exchange membrane (AEM) water electrolysis holds promise for green hydrogen production. One of the main challenges is the preparation of highly efficient electrodes with scalable techniques. Herein, a novel Fe‐modulating Raney‐Ni electrode (NFA‐CA) is developed through atmospheric plasma spraying and chemical etching techniques. The resulting electrode demonstrates high bifunctional catalytic activities with low overpotentials and Tafel slopes (HER: 27 mV at 10 mA cm−2, 20 mV dec−1; OER: 169 mV at 10 mA cm−2, 49 mV dec−1), competing for precious‐metal catalysts and leading transition‐metal‐based compounds reported in the literature. Moreover, the corresponding AEM electrolyzer only requires 1.56 V to drive 1 A cm−2 and exceptional durability for 1000 h. Moreover, the AEM cell can reach 2 A cm−2 at 1.79 V, exceeding the United States Department of Energy target for AWE systems (2 A cm−2 at 1.80 V). The highly efficient and durable performance is attributed to the NiFe nanocrystals (core)‐NiFe hydroxide (shell) nanostructures created by the treatment. This structure not only facilitates superior electrocatalytic properties but it is also maintained after 1000 h of continuous operation. It is consider that the present approach can offer an attractive route for scalable fabrication of NiFe‐based electrodes for industrial AEM water electrolyzers.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"72 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143876153","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

Ultrafast Microwave Quasi‐Solid‐State Construction of Os‐OsP₂ with Enhanced Interfacial Spillover for Seawater‐Based Anion Exchange Membrane Electrolyzers 海水基阴离子交换膜电解槽界面溢出增强的Os - osp2超快微波准固态构建

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-04-26 DOI: 10.1002/aenm.202501054

Xiaowei Fu, Xingchao Zang, Jinxiao Gao, Hongdong Li, Weiping Xiao, Yingxia Zong, Guangying Fu, Jinsong Wang, Tianyi Ma, Wei Jin, Zexing Wu, Lei Wang

{"title":"Ultrafast Microwave Quasi‐Solid‐State Construction of Os‐OsP₂ with Enhanced Interfacial Spillover for Seawater‐Based Anion Exchange Membrane Electrolyzers","authors":"Xiaowei Fu, Xingchao Zang, Jinxiao Gao, Hongdong Li, Weiping Xiao, Yingxia Zong, Guangying Fu, Jinsong Wang, Tianyi Ma, Wei Jin, Zexing Wu, Lei Wang","doi":"10.1002/aenm.202501054","DOIUrl":"https://doi.org/10.1002/aenm.202501054","url":null,"abstract":"Developing cost‐effective hydrogen evolution reactions (HER) catalysts to replace Pt/C in alkaline seawater media remains a critical challenge. Therefore, the osmium‐osmium phosphide (Os‐OsP2) catalyst is reported with a heterogeneous junction through ultrafast (20 s) microwave quasi‐solid approach for seawater‐splitting under industrial‐grade current density. Experimental and theoretical analysis reveal that the Os‐OsP₂ interface optimizes electronic structure: osmium (Os) sites accelerate water dissociation by lowering the d‐band center, while OsP₂ promotes hydrogen desorption via interfacial spillover, collectively reducing the HER energy barrier. In addition, the catalyst requires only 1.74 V to reach 1 A cm−2 and owns high price activity in the anion exchange membrane water electrolyzer, surpassing commercial Pt/C by 23% in efficiency under identical conditions. Furthermore, it exhibits robust HER activity across a wide pH range and exceptional durability over 100 h in alkaline seawater. Economic evaluation highlights its superior cost activity (85.6 A dollar⁻¹), 90‐fold higher than Pt/C, with hydrogen production costs ($0.86 GGE⁻¹) undercutting the U.S. DOE target. This study provides feasible guidance for the development of high‐performance, cost‐effective catalysts for scalable hydrogen production from seawater.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"78 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143876154","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

Bridged Mn─O─Ru Motifs in RuO2 Catalyst Promoting Hydrogen Production at Ampere‐Level Current Density RuO2催化剂中Mn─O─Ru桥接基序在安培电流密度下促进制氢

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2025-04-26 DOI: 10.1002/aenm.202500815

Qiqi Li, Qiulin Xu, Zhenxin Pei, Zhixuan Zhang, Wenli Xu, Jiayao Mao, Qing Shang, Yongqiang Ni, Yifan Chen, Yongting Chen, Xinghui Liu, Xuanke Li, Qin Zhang, Nianjun Yang

{"title":"Bridged Mn─O─Ru Motifs in RuO2 Catalyst Promoting Hydrogen Production at Ampere‐Level Current Density","authors":"Qiqi Li, Qiulin Xu, Zhenxin Pei, Zhixuan Zhang, Wenli Xu, Jiayao Mao, Qing Shang, Yongqiang Ni, Yifan Chen, Yongting Chen, Xinghui Liu, Xuanke Li, Qin Zhang, Nianjun Yang","doi":"10.1002/aenm.202500815","DOIUrl":"https://doi.org/10.1002/aenm.202500815","url":null,"abstract":"Accurately regulating the reactive sites of catalysts is vital for highly efficient catalytic processes but still faces considerable challenges. In view of this, a local oxidation‐state asymmetric Mn‐O‐Ru bridged moiety is developed by introducing Mn atoms into the RuO2 host. The synergistic effect of the respective active sites on the Mn‐O‐Ru microstructure ensures its excellent alkaline HER performance. Theoretical calculations profiled that induced by the Mn‐O‐Ru bridged moiety, the water dissociation ability of Ru sites is significantly boosted, while the bridging oxygen exhibits the optimal hydrogen adsorption free energy. As predicted, the Mn‐RuO2 catalyst achieved the overpotentials as low as 118 and 160 mV at the industrial level current densities of 1 and 2 A cm‒2 in 1 m KOH, respectively, superior to the RuO2 and commercial Pt/C catalyst. Such a Mn‐RuO2 electrocatalyst can operate stably with a long lifetime of 300 h at 10 mA cm‒2 under alkaline conditions. Furthermore, it only requires 1.87 V to reach the current density of 1.0 A cm‒2 when serving as the cathode in an assembled flow cell. This work provides new insight into catalytic local environment design for obtaining ideal efficient HER electrocatalysts.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"3 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143876152","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