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Single-atom catalysts for CO oxidation,CO_(2) reduction,and O_(2) electrochemistry

查看全文 作　　者：Wenyu [1]Yuan;Yiyuan [2]Ma;Heng [2]Wu;Laifei [2]Cheng 高影响力作者 机构地区：[1]Department of Physics,Tokyo Metropolitan University,Hachioji,Tokyo 192-0397,Japan;[2]Science and Technology on Thermostructural Composite Materials Laboratory,Northwestern Polytechnical University,Xi’an 710072,Shaanxi,China高影响力机构 出　　处：《Journal of Energy Chemistry》索引2022年第31卷第2期,共26页高影响力期刊 基　　金：supported by the National Natural Science Foundation of China(No.51632007);the National Science and Technology Major Project(2017-VI-0007-0077)。 摘　　要：CO_(x)(x=1,2)and O_(2) chemistry play key roles in tackling global severe environmental challenges and energy issues.To date,the efficient selective electrocatalytic transformations of COx-carbon chemicals,and O_(2)-hydrogenated products are still huge challenges.Single-atom catalysts(SACs)as atomic-scale novel catalysts in which only isolated metal atoms are dispersed on supports shed new insights in overcome these obstacles in CO_(x) and O_(2) chemistry,including CO oxidation,CO_(2) reduction reaction(CO_(2)RR),oxygen reduction reaction(ORR),and oxygen evolution reaction(OER).In this review,the unique features and advanced synthesis strategies of SACs from a viewpoint of fundamental synthesis design are first highlighted to guide future strategy design for controllable SAC synthesis.Then,the to-date reported CO_(2)RR,CO oxidation,OER,and ORR mechanism are included and summarized.More importantly,the design principles and design strategies of improving the intrinsic activity,selectivity,and stability are extensively discussed and the engineering strategy is classified as neighbor coordination engineering,metal-atom engineering,and substrate engineering.Via the comprehensive review and summary of state-of-the-art SACs,the synthesis–structure–property–mechanism–design principle relation can be revealed to shed lights into the structural construction of SACs.Finally,we present an outlook on current challenges and future directions for SACs in CO_(x) and O_(2) chemistry. 关 键 词：Single-atom catalysts CO_(2)reduction reaction CO oxidation Oxygen reduction reaction Oxygen evolution reaction
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