Bulky Thiolate-Protected Silver Nanocluster Ag_(213)(Adm-S)_(44)Cl_(33)with Excellent Electrocatalytic Performance toward Oxygen Reduction
作者机构：Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of EducationSchool of ChemistrySun Yat-sen UniversityGuangzhouGuangdong 510006
出 版 物：《CCS Chemistry》 (中国化学会会刊（英文）)
年 卷 期：2023年第5卷第5期
页 面：1154-1162页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
基 金：supported by the National Natural Science Foundation of China(grant nos.21771198 22071274 21821003)
主 题：silver nanoclusters atomically precise structure oxygen reduction reaction electrocatalysis
摘 要：Atomically precise gold and/or silver nanoclusters play a key role in crystallography and coordination *** with gold nanoclusters,silver nanoclusters become unstable and difficult to crystallize due to the high reactivity ofmetal ***,we report a silver nanocluster Ag_(213)(Adm-S)_(44)Cl_(33)(Ag_(213))coprotected by bulky thiolates and *** low surface thiolate coverage(about 45%)endows Ag_(213)with high catalytic *** on activated carbon,Ag_(213)nanoclusters exhibit excellent electrocatalytic oxygen reduction performance with Eonset and E_(1/2)values of 0.89 and 0.72 V,respectively,close to the values of commercial Pt/C *** is the first report on the electrocatalytic oxygen reduction reaction of nanoclusters with more than 100 silver ***_(213)with the diameter of 2.75 nm comprises a core–shell structure Ag_(7)@Ag_(32)@Ag_(77)@Ag_(97).The strong plasmonic absorption band at 454 nm reveals the metallic nature of Ag_(213).Interestingly,halide is of *** facilitates the formation of Ag_(213)and Ag_(56)(Adm-S)_(33)Cl_(16)(Ag_(56)^(Cl))while bromide can promote the formation of Ag_(56)(Adm-S)_(33)Br_(16)(Ag_(56)Br).This work provides an example for the study of largesized metal nanoclusters and nanocluster-based electrocatalysts.
维普期刊数据库