钴基电极材料的改性策略及其应用研究  

Modification strategy and application of cobalt-based electrode materials

作　　者：孙兴伟 白杰 李春萍 梁海欧 许瞳 孙炜岩 SUN Xingwei;BAI Jie;LI Chunping;LIANG Hai'ou;XU Tong;SUN Weiyan(College of Chemical Engineering,Inner Mongolia University of Technology,Inner Mongolia Key Laboratory of Industrial Catalysis,Hohhot 010051,China)

机构地区：[1]内蒙古工业大学化工学院,内蒙古工业催化重点实验室,呼和浩特010051

出　　处：《复合材料学报》2023年第5期2550-2565,共16页Acta Materiae Compositae Sinica

基　　金：国家自然科学基金(21965025)。

摘　　要：钴基材料作为非贵金属材料中重要的一员,因其具有较高理论容量、良好的催化活性及出色的热/化学稳定性,被广泛应用在超级电容器(SCs)和电催化等电化学能源储存与转化领域中。然而目前在钴基材料的应用中还存在诸多缺陷,如导电性偏低,活性位点暴露的不充分,测试过程中活性组分易团聚、分解,结构稳定性较差等。近年来,许多研究报道了改性钴基材料来提升其电化学性能,基于此,本综述详细介绍了近几年对钴基材料的改性研究,主要包括形貌调控、元素掺杂、构筑异质结、缺陷工程及与载体材料复合。然后,对其在SCs、电催化氧还原反应(ORR)、析氧反应(OER)及析氢反应(HER)中的应用进行系统性的总结。最后,提出钴基材料当前存在的问题和未来的发展方向。As an important member of non-precious metal materials,cobalt-based materials have been widely used in electrochemical energy storage and conversion fields such as supercapacitors and electrocatalysis due to their high theoretical capacity,good catalytic activity,and excellent thermal/chemical stability.However,cobalt-based materials have also many shortcomings,such as low conductivity,insufficient exposure of active sites,easy agglomeration and decomposition of active components during testing,poor structural stability,etc.In recent years,many studies have reported the modification of cobalt-based materials to improve their electrochemical performance.Based on this,this review introduces the modification research of cobalt-based materials in recent years in detail,mainly including morphology control,elemental doping,heterostructure construction,defect engineering and composite with specific supports materials,etc.Then,their electrochemistry applications including supercapacitors(SCs),electrocatalytic oxygen reduction reaction(ORR),oxygen evolution reaction(OER),and hydrogen evolution reaction(HER)is systematically summarized.Finally,the current problems and future development directions of cobalt-based materials are proposed.

关 键 词：钴基材料 改性策略 超级电容器 氧还原反应 析氧反应 析氢反应 

分 类 号：O61[理学—无机化学]