Confining shell-sandwiched Ag clusters in MnO_(2)-CeO_(2)hollow spheres to boost activity and stability of toluene combustion

作     者：Menglan Xiao Xueqin Yang Yue Peng Yucong Guo Yuechang Wei Maofa Ge Xiaolin Yu Menglan Xiao;Xueqin Yang;Yue Peng;Yucong Guo;Yuechang Wei;Maofa Ge;Xiaolin Yu

作者机构：State Key Laboratory for Structural Chemistry of Unstable and Stable SpeciesBeijing National Laboratory for Molecular Sciences(BNLMS)CAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190China College of ForestryHenan Agricultural UniversityZhengzhou 450002China Center for Excellence in Regional Atmospheric EnvironmentInstitute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China School of EnvironmentTsinghua UniversityBeijing 100084China State Key Laboratory of Heavy Oil ProcessingChina University of PetroleumBeijing 102249China University of Chinese Academy of SciencesBeijing 100049China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2022年第15卷第8期

页      面：7042-7051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：the National Natural Science Foundation of China(Nos.22076192,22006032,21777166,42175133,and 21806169) Beijing National Laboratory for Molecular Sciences(No.BNLMS-CXXM-202011) the National Key Research and Development Program of China(No.2016YFC0202202) 

主　　题：hollow spheres multi-interfaces toluene combustion active lattice oxygen 

摘      要：Supported noble metal catalysts have the promising application in volatile organic compounds(VOCs)catalytic combustion but suffer from the deactivation due to noble metal sintering at high ***,we report the construction of shellsandwiched MnO_(2)-Ag-CeO_(2)hollow spheres with remarkable sintering resistance and high activity in toluene *** clusters were sandwiched between outer MnO_(2)and inner CeO_(2)shell to enlarge and stabilize metal–support active *** unique hollow structure could alter the electronic states of catalysts sites and increase the adsorbed site of reactant ***,Mn–Ag–Ce multi-interfaces in MnO_(2)-Ag-CeO_(2)could facilitate the sustainable activation and the stable release of oxygen species via a tandem *** oxygen species at Ag–Mn interface perimeter were instantly replenished by Ag–Ce interface to accelerate a deep oxidation of intermediates,guaranteeing the opening of benzene ring to generate maleic *** investigation provides a promising method for constructing efficient and sintering-resistant cluster catalysts for VOCs oxidation.