文献类型：期刊文献

英文题名：Nanorattle Au@PtAg encapsulated in ZIF-8 for enhancing CO2 photoreduction to CO

作者：Su, Yuqun[1];Xu, Haitao[1];Wang, Jiajia[1];Luo, Xikuo[1];Xu, Zhen-liang[1];Wang, Kefu[2];Wang, Wenzhong[2]

机构：[1]ECUST, Chem Engn Res Ctr, Membrane Sci & Engn R&D Lab, State Key Lab Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Super Fine, 1295 Dingxi Rd, Shanghai 200050, Peoples R China

年份：2019

卷号：12

期号：3

起止页码：625

外文期刊名：NANO RESEARCH

收录：;EI(收录号：20190106331305);WOS:【SCI-EXPANDED(收录号:WOS:000458992000021)】；

基金：We gratefully acknowledge the financial support from the National Natural Science Foundation of China (No. 21371058).

语种：英文

外文关键词：imidazolate-based ZIF-8; core-shell; nanorattle; noble metal catalyst; CO2 photoreduction

摘要：Imidazolate-based ZIF-8 catalysts M@ZIF-8 (M = Au NR, Au@Ag NR, or Au@PtAg NRT; NR = nanorod, NRT = nanorattle), were assembled. Au NRs acted as the core for the epitaxial growth of the Ag shell, and oxidative etching of Au@Ag NRs led to Au@PtAg NRTs with K2PtCl4 aqueous solution. All metal nanorods (MNRs) and metal nanorattles (MNRTs) were well dispersed and fully encapsulated in ZIF-8. Au@PtAg NRTs encapsulated in ZIF-8 could lead to enhanced stability and selectivity for catalytic applications, combining the advantages of ZIF-8 (tailorable porosity) with the high surface area and improved optical sensitivity of rod-shaped NRTs. The catalyst Au@PtAg@ZIF-8 exhibited efficient catalytic activity and CO selectivity for the gas-phase photoreduction of CO2 with H2O.