二维过渡金属硫属化合物氧还原反应催化剂的研究进展  

Two-dimensional Transition Metal Dichalcogenides for Electrocatalytic Oxygen Reduction Reaction

作　　者：孙炼 顾全超 杨雅萍 王洪磊 余金山 周新贵[1] SUN Lian;GU Quanchao;YANG Yaping;WANG Honglei;YU Jinshan;ZHOU Xingui(Science and Technology on Advanced Ceramic Fibers and Composites Laboratory,College of Aerospace Science and Engineering,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]国防科技大学空天科学学院,新型陶瓷纤维及其复合材料重点实验室,长沙410073

出　　处：《无机材料学报》2022年第7期697-709,共13页Journal of Inorganic Materials

基　　金：国家重点研发计划(2018YFB1900603)。

摘　　要：氧还原(ORR)反应是燃料电池等清洁能源阴极的关键反应,其反应动力学复杂,阴极需使用Pt等贵金属催化剂。然而Pt价格昂贵,且载体炭黑在高电位环境下稳定性欠佳,导致电池部件成本高且寿命短。二维过渡金属硫属化合物(2D TMDs)具有高比表面积与可调节的电学性能,且稳定性强,有望在维持活性的同时提高燃料电池阴极的耐久性。本文梳理了近年来2D TMDs在ORR催化剂领域的最新研究进展:首先概述了2D TMDs的结构、性质及ORR反应机理;其次分析了调控2D TMDs的ORR性能策略,包括异质元素掺杂、相转变、缺陷工程与应力工程等,介绍了2D TMDs基异质结构对ORR性能的提升作用;最后,针对该领域目前存在的挑战进行展望与总结。Oxygen reduction reaction(ORR) is the key reaction in cathode for fuel cells. Because of the sluggish kinetics, platinum(Pt) is widely used as the electrocatalysts for ORR. However, the high cost of Pt and poor stability of carbon black support under high voltage limit the commercialization and durability of fuel cells. Two-dimensional transition metal dichalcogenides(2D TMDs) possess large specific area, tunable electronic structure, and high chemical stability, making them a good candidate for ORR catalysts with high activity and durability. This paper reviews the recent progress of 2D TMDs-based ORR electrocatalysts. First, crystal structure, electronic properties, and ORR reaction mechanism are briefly introduced. Then some strategies for adjusting ORR performance of 2D TMDs are summarized, including heteroatom doping, phase conversion, defect engineering, and strain engineering.Meanwhile, the ORR activity enhancement arising from 2D TMDs-based heterostructures is also analyzed. Finally,perspectives are given for current issues and their possible solutions.

关 键 词：氧还原反应 二维材料 过渡金属硫属化合物 电催化 综述 

分 类 号：O614[理学—无机化学]