文献类型：期刊文献

英文题名：Au@Pt Nanotubes within CoZn-Based Metal-Organic Framework for Highly Efficient Semi-hydrogenation of Acetylene

作者：Wang, Jiajia[1];Xu, Haitao[1];Ao, Chengcheng[3];Pan, Xinbo[1];Luo, Xikuo[1];Wei, ShengJie[2];Li, Zhi[2];Zhang, Lidong[3];Xu, Zhen-liang[1];Li, Yadong[2]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China;[2]Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China;[3]Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China

年份：2020

卷号：23

期号：6

外文期刊名：ISCIENCE

收录：;EI(收录号：20210151562);WOS:【SCI-EXPANDED(收录号:WOS:000548205400001)】；

基金：We thank Prof. Rong Huang, Prof. Ruijuan Qi from Key Laboratory of Polar Materials and Devices Ministry of Education East China Normal University for HAADF-STEM measurements, and Ms. Lihui Zhou at Research Center of Analysis and Test of East China University of Science and Technology for the help on TEM analysis. We gratefully acknowledge the financial support from the National Natural Science Foundation of China (No. 21371058, 21890383) and the National Key R&D Program of China (2018YFA0702003).

语种：英文

外文关键词：Acetylene - Catalyst selectivity - Etching - Lighting - Metal-Organic Frameworks - Nanocatalysts - Nanocomposites - Nanorods - Nanotubes - Organometallics

摘要：Designing nanocatalysts with synergetic functional component is a desirable strategy to achieve both high activity and selectivity for industrially important hydrogenation reaction. Herein, we fabricated a core-shell hollow Au@Pt NTs@ZIFs (ZIF, zeolitic imidazolate framework; NT, nanotube) nanocomposite as highly efficient catalysts for semi-hydrogenation of acetylene. Hollow Au@PtNTswere synthesized by epitaxial growth of Pt shell on Au nanorods followed with oxidative etching of Au@Pt nanorod. The obtained hollow Au@PtNTs were then homogeneously encapsulated within ZIFs through in situ crystallization. By combining the high activity of bimetallic nanotube and gas enrichment property of porousmetal-organic frameworks, hollow Au@Pt NT@ZIF catalyst was demonstrated to show superior catalytic performance for the semi-hydrogenation of acetylene,in terms of both selectivity and activity, over those of monometallic Au and solid bimetal nanorod@ZIF counterparts. This catalysts design idea is believed to be inspirable for the development of highly efficient nanocomposite catalysts.