Selective CO_(2) conversion tuned by periodicities in Au_(8n+4)(TBBT)_(4n+8) nanoclusters  

作　　者：Dan Yang Wei Pei Yuying Zhang Weigang Hu Xiao Cai Yongnan Sun Shuohao Li Xinglian Cheng Si Zhou Jijun Zhao Yan Zhu Weiping Ding Xu Liu 

机构地区：[1]School of Chemistry and Chemical Engineering,Nanjing University,Nanjing,210093,China [2]Key Laboratory of Materials Modification by Laser Ion and Electron Beams(Dalian University of Technology),Ministry of Education,Dalian,116024,China

出　　处：《Nano Research》2021年第3期807-813,共7页纳米研究（英文版）

基　　金：We acknowledged financial support from the National Natural Science Foundation of China(No.91961204);the Fundamental Research Funds for the Central Universities,and China Postdoctoral Science Foundation(No.2019M650106).

摘　　要：The structure-dependent catalytic behavior is one of the most important issues in catalysis science.However,it has not been fully understood how different types of atom-packing structures of heterogeneous catalysts precisely impact the reaction sites and pathways.Here we investigate a periodic series of Au_(8n+4)(TBBT)_(4n+8 )nanoclusters with layer-by-layer structural pattern to catalyze CO_(2) hydrogenation(where n=3–6 is the number of(001)layers;TBBT=4-tert-butyl-benzenethiolate).An encouraging evolution of CO_(2) conversion can be identified:The product selectivity from methanol,formic acid to ethanol can be switched by the structure-dependent deformation from the flattened,perfect,to elongated cuboids in Au_(8n+4)(TBBT)_(4n+8).Through a combined study of experiment and theory,we demonstrate that the variation in structural patterns of catalysts can exclusively tune their adsorption strength with reaction intermediates and further control the CO_(2) conversion toward the different products.

关 键 词：Au8n+4(TBBT)4n+8 NANOCLUSTER periodicity catalysis CO_(2)conversion 

分 类 号：TB383[一般工业技术—材料科学与工程]