文献类型：期刊文献

英文题名：Silver and Copper Dual Single Atoms Boosting Direct Oxidation of Methane to Methanol via Synergistic Catalysis

作者：Yu, Baiyang[1,2];Cheng, Lu[3,4];Dai, Sheng[3];Jiang, Yongjun[3];Yang, Bing[5];Li, Hong[5];Zhao, Yi[1,2];Xu, Jing[6];Zhang, Ying[1,2];Pan, Chengsi[1,2];Cao, Xiao-Ming[3,4];Zhu, Yongfa[7];Lou, Yang[1,2]

机构：[1]Jiangnan Univ, Sch Chem & Mat Engn, Key Lab Synthet & Biol Colloids, Minist Educ, Wuxi 214122, Jiangsu, Peoples R China;[2]Jiangnan Univ, Int Joint Res Ctr Photorespons Mol & Mat, Wuxi 214122, Jiangsu, Peoples R China;[3]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Sch Chem & Mol Engn, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[4]East China Univ Sci & Technol, Res Inst Ind Catalysis, Ctr Computat Chem, Shanghai 200237, Peoples R China;[5]Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, 457 Zhongshan Rd, Dalian 116023, Peoples R China;[6]Jiangnan Univ, Sch Food Sci & Technol, Wuxi 214122, Jiangsu, Peoples R China;[7]Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China

年份：2023

卷号：10

期号：26

外文期刊名：ADVANCED SCIENCE

收录：;EI(收录号：20232714356324);WOS:【SCI-EXPANDED(收录号:WOS:001021337700001)】；

基金：This project was supported financially by the National Key R&D Program of China (2021YFB3501900), National Natural Science Foundation of China (21908079, U21A20326, 21902009, 22172065, 22022302, 92045303, and 91845111), Natural Science Foundation of Jiangsu Province (BK20211239, BK20201345), Jiangsu Specially-Appointed Professor (1046010241211400), the State Key Laboratory of Fine Chemicals, Dalian University of Technology (KF2005), Fundamental Research Funds for the Central Universities (JUSRP11905, JUSRP52004B, JKVJ1211040, and JKVJ1211022). The authors also thank the Central Laboratory, School of Chemical and Material Engineering, Jiangnan University. S.D. acknowledges the support by Shanghai Rising-star Program (20QA1402400) and the Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning. The authors gratefully acknowledge the great help in acquiring in situ NO-DRIFTs data from Prof. Yue Peng from Tsinghua University.

语种：英文

外文关键词：dual-atom centers; methane direct conversion; methanol; selective conversion; synergistic catalysis

摘要：Rationally constructing atom-precise active sites is highly important to promote their catalytic performance but still challenging. Herein, this work designs and constructs ZSM-5 supported Cu and Ag dual single atoms as a proof-of-concept catalyst (Ag-1-Cu-1/ZSM-5 hetero-SAC (single-atom catalyst)) to boost direct oxidation of methane (DOM) by H2O2. The Ag-1-Cu-1/ZSM-5 hetero-SAC synthesized via a modified co-adsorption strategy yields a methanol productivity of 20,115 & mu;mol g(cat)(-1) with 81% selectivity at 70 & DEG;C within 30 min, which surpasses most of the state-of-the-art noble metal catalysts. The characterization results prove that the synergistic interaction between silver and copper facilitates the formation of highly reactive surface hydroxyl species to activate the C-H bond as well as the activity, selectivity, and stability of DOM compared with SACs, which is the key to the enhanced catalytic performance. This work believes the atomic-level design strategy on dual-single-atom active sites should pave the way to designing advanced catalysts for methane conversion.