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2024年9月16日,Elsevier 旗下top期刊《Applied Catalysis B: Environment and Energy》(影响因子:20.2)在线发表了云南师范大学化学与化工学院高端引进人才李如春博士、暨南大学化学与材料学院 化学系袁定胜教授合作的最新研究成果《Collaborative Interface Optimization Strategy Guided Fe3C/MnO-NC Electrocatalysts for Rechargeable Flexible Zinc-Air Batteries》。云南师范大学化学化工学院李如春博士和暨南大学化学系袁定胜教授为共同通讯作者,第一作者单位为暨南大学化学与材料学院。
https://www.sciencedirect.com/science/article/pii/S0926337324009299
Abstract
The flexible zinc-air batteries characterized by heightened flexibility, durability, and high electrochemical performance have been recognized as the most promising candidates for the next-generation wearable electronic products. Herein, a novel Fe3C/MnO heterostructure coupled with nitrogen-doped carbon (Fe3C/MnO-NC) derived from metal-organic frameworks (MOFs) is innovatively designed as a highly active bifunctional electrocatalyst. The Fe3C/MnO heterostructure in Fe3C/MnO-NC can effectively regulate the electronic structure to optimize the free energy of the related intermediates in the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER), consequently improving the catalytic properties of liquid Zn-air battery with impressive power density and outstanding stability. The theoretical calculations reveal that the design of the heterogeneous Fe3C/MnO interface effectively tunes the electron distribution to optimize the adsorption energy of ORR/OER related intermediates and significantly promotes intrinsic ORR/OER activities. Notably, the flexible Zn-air battery was also assembled with the bifunctional Fe3C/MnO-NC electrocatalyst and the prepared polyacrylamide polyacrylic acid-glycerin composite gel polymer electrolyte (PAM-PAA-Gly GPE). The electrochemical results reveal that the constructed flexible Zn-air battery can achieve a remarkable open-circuit voltage of 1.50 V and sustain stable cycling for 48 h (288 cycles). This work not only sheds light on the effective utilization of Fe3C/MnO-NC catalysts but also highlights the potential of hydrogels in achieving high-performance wearable Zn-air batteries.
扩展阅读:
云师大化工学院李如春在《Journal of Colloid and Interface Science》发表最新研究成果
云师大化工学院李如春在《Separation and Purification Technology》发表最新研究成果
云师大化工学院李如春博士在top期刊《Chinese Chemical Letters》发表最新研究成果
中山大学博士、武汉理工大学博士后李如春副教授加盟云南师范大学
李如春-云南师范大学化学化工学院
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