双功能双位点单原子催化剂在可充电锌-空气电池氧电催化中的研究进展  

Recent advances in bifunctional dual-sites single-atom catalysts for oxygen electrocatalysis toward rechargeable zinc-air batteries

作　　者：谢小英 翟泽宇 彭立山 张敬波 尚露 张铁锐 Xiaoying Xie;Zeyu Zhai;Lishan Peng;Jingbo Zhang;Lu Shang;Tierui Zhang(Tianjin Key Laboratory of Structure and Performance for Functional Molecules,College of Chemistry,Tianjin Normal University,Tianjin 300387,China;Key Laboratory of Photochemical Conversion and Optoelectronic Materials,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China;Key Laboratory of Rare Earths,Ganjiang Innovation Academy,Chinese Academy of Sciences,Ganzhou 341000,China)

机构地区：[1]Tianjin Key Laboratory of Structure and Performance for Functional Molecules,College of Chemistry,Tianjin Normal University,Tianjin 300387,China [2]Key Laboratory of Photochemical Conversion and Optoelectronic Materials,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China [3]Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China [4]Key Laboratory of Rare Earths,Ganjiang Innovation Academy,Chinese Academy of Sciences,Ganzhou 341000,China

出　　处：《Science Bulletin》2023年第22期2862-2875,M0006,共15页科学通报（英文版）

基　　金：supported by the National Natural Science Foundation of China(22209121,21975183,22279150,51825205,and 22088102);Beijing Natural Science Foundation(2222080);the Youth Innovation Promotion Association of the CAS(Y2021011)。

摘　　要：可充电锌空气电池以其低成本和高能量密度而受到广泛关注.然而,其空气电极上发生的氧还原反应和氧析出反应的动力学缓慢且过程复杂,涉及四电子转移过程,这严重制约了可充电锌空气电池的大规模应用.碳载单原子催化剂在氧电催化领域展现出巨大的潜力,但其双功能氧电催化性能仍有待提高,这与活性位点的配位环境密切相关.相较于单位点单原子催化剂,双位点单原子催化剂可在原子水平上调整活性位点的配位环境,从而提高催化剂的双功能氧电催化性能.本文系统地总结了近年来双功能双位点碳载单原子催化剂在可充电锌-空气电池领域的研究进展.首先,阐述了氧电催化剂的催化机理和设计原则;随后讨论了金属-非金属原子协同策略和双金属原子协同策略在制备高性能双位点碳载单原子催化剂中的应用;最后,提出了双位点碳载单原子催化剂的发展前景和挑战,为合理设计高效双功能氧电催化剂提供了新思路.Rechargeable zinc-air batteries(ZABs)with high energy density and low pollutant emissions are regarded as the promising energy storage and conversion devices.However,the sluggish kinetics and complex four-electron processes of oxygen reduction reaction and oxygen evolution reaction occurring at air electrodes in rechargeable ZABs pose significant challenges for their large-scale application.Carbonsupported single-atom catalysts(SACs)exhibit great potential in oxygen electrocatalysis,but needs to further improve their bifunctional electrocatalytic performance,which is highly related to the coordination environment of the active sites.As an extension of SACs,dual-sites SACs with wide combination of two active sites provide limitless opportunities to tailor coordination environment at the atomic level and improve catalytic performance.The review systematically summarizes recent achievements in the fabrication of dual-site SACs as bifunctional oxygen electrocatalysts,starting by illustrating the design fundament of the electrocatalysts according to their catalytic mechanisms.Subsequently,metal-nonmetalatom synergies and dual-metal-atom synergies to synthesize dual-sites SACs toward enhancing rechargeable ZABs performance are overviewed.Finally,the perspectives and challenges for the development of dual-sites SACs are proposed,shedding light.

关 键 词：Dual-sites single-atom catalysts Bifunctional oxygen electrocatalysis Zinc-air batteries Coordination environment 

分 类 号：TM911.41[电气工程—电力电子与电力传动]