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Maximizing hydrogen evolution via co-ni dual atoms and nanoclusters on hierarchically ordered porous carbon framework

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Science China Materials 2024年第10期67卷 3197-3205页

作者： Qian Li Pan Zhang Huaiguang Li Yuan Wang Dongsheng Tang Qun Li Jiabin Wu Synergetic Innovation Center for Quantum Effects and Application Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of EducationCollege of Physics and Information ScienceHunan Normal UniversityChangsha 410081China National Key Laboratory of Advanced Micro and Nano Manufacture Technology School of Integrated CircuitsPeking UniversityBeijing 100871China The Chinese University of Hong Kong ShenzhenShenzhen 518172China CAS Key Laboratory of Nanosystem and Hierarchical Fabrication&CAS Center for Excellence in Nanoscience National Center for Nanoscience and TechnologyBeijing 100190China Department of Chemistry Tsinghua UniversityBeijing 100084China Insititute of Microelectronics State Key Laboratory of Analog and Mixed-Signal VLSIUniversity of MacaoMacao 519000China

Efficient hydrogen production through water splitting relies on the development of high-performance catalysts for the hydrogen evolution reaction(HER).In this study,we synthesized the coni SAs@NPs-NC catalyst using multi-metal single-crystal ordered macroporous metal-organic frameworks(MOFs)as *** catalyst features a hierarchical porous structure with ordered macropores and micropores,which not only provides a high specific surface area but also promotes efficient mass ***,the incorporation of bimetallic components,coupled with synergistic interactions between single atoms(SAs)and nanoparticles(NPs),significantly enhances its catalytic *** coni SAs@NPs-NC nanocatalysts demonstrated exceptional activity in the HER,recording overpotentials of 90 mV in 1 M KOH and 61 mV in 0.5 M H_(2)SO_(4),both at a current density of 10 mA cm^(−2).In addition,density functional theory(DFT)analysis was employed to investigate the synergistic interactions among coni NPs,SAs,and nitrogen *** finding highlights the promising potential of the coni SAs@NPs-NC catalyst for efficient hydrogen evolution,making it a valuable candidate for advancing the field of water splitting.

关键词： three dimensional ordered macroporous co-ni dual atoms co-ni nanoclusters HER synergistic effect

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