Selective CO2 conversion tuned by periodicities in Au8n + 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
• 来源期刊: 纳米研究（英文版）
• 年，卷（期）: 2021,（3）
• 所属期刊栏目: Review Articles
• 页码范围: 807-813
• 页数: 7页
• 语种: 英文

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 Au8n+ 4(TBBT)4n + 8 nanoclusters with layer-by-layer structural pattem to catalyze CO2 hydrogenation (where n =3-6 is the number of (001) layers;TBBT =4-tert-butyl-benzenethiolate).An encouraging evolution of CO2 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 Au8n+ 4(TBBT)4n+8.Through a combined study of experiment and theory,we demonstrate that the variation in structural pattems of catalysts can exclusively tuna their adsorption strength with reaction intermediates and further control the CO2 conversion toward the different products.