Composing atomic transition metal sites for high-performance bifunctional oxygen electrocatalysis in rechargeable zinc-air batteries
作者机构：School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing100081China Advanced Research Institute of Multidisciplinary ScienceBeijing Institute of TechnologyBeijing100081China Beijing Key Laboratory of Green Chemical Reaction Engineering and TechnologyDepartment of Chemical EngineeringTsinghua UniversityBeijing100084China Key Laboratory for Photonic and Electronic Bandgap MaterialsMinistry of EducationSchool of Physics and Electronic EngineeringHarbin Normal UniversityHarbin150025China
出 版 物：《Particuology》 (颗粒学报（英文版）)
年 卷 期：2023年第77卷第6期
页 面：146-152页
核心收录：
基 金：supported by the National Natural Science Foundation of China(grant No.22109007) Beijing Institute of Technology Research Fund Program for Young Scholars,the Tsinghua University Initiative Scientific Research Program,and the Open Project Program of Key Laboratory for Photonic and Electric Bandgap Materials,Ministry of Education(grant No.PEBM202115)
主 题：Rechargeable zinc-air batteries Bifunctional oxygen electrocatalysis Noble-metal-free electrocatalysts Oxygen reduction reaction Oxygen evolution reaction
摘 要：Rechargeable zinc-air batteries have attracted extensive attention as clean,safe,and high-efficient en-ergy storage ***,the oxygen redox reactions at cathode are highly sluggish in kinetics and severely limit the actual battery *** transition metal sites demonstrate high electro-catalytic activity towards respective oxygen reduction and evolution,while high bifunctional electro-catalytic activity is seldomly *** a strategy of composing atomic transition metal sites is proposed to fabricate high active bifunctional oxygen electrocatalysts and high-performance recharge-able zinc-air ***,atomic Fe and Ni sites are composed based on their respective high electrocatalytic activity on oxygen reduction and *** composite electrocatalyst demonstrates high bifunctional electrocatalytic activity(ΔE=0.72 V)and exceeds noble-metal-based Pt/C+Ir/C(ΔE=0.79 V).Accordingly,rechargeable zinc-air batteries with the composite electrocatalyst realize over 100 stable cycles at 25 mA *** work affords an effective strategy to fabricate bifunctional oxygen electrocatalysts for high-performance rechargeable zinc-air batteries.
维普期刊数据库