文献类型：期刊文献

英文题名：Hollow Mesoporous Nanoreactors with Encaged PtSn Alloy Nanoparticles for Selective Hydrogenation of Furfural to Furfuryl Alcohol

作者：Xiao, Tao[1];Yan, Peijian[1];Li, Kaijie[1];Yang, Caoping[1];Yu, Hongbo[2];Wang, Junyou[1];Yin, Hongfeng[2];Zhou, Shenghu[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Shanghai Key Lab Multiphase Mat Chem Engn, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China

年份：2021

卷号：60

期号：17

起止页码：6078

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20212210423713);WOS:【SCI-EXPANDED(收录号:WOS:000648582000002)】；

基金：S.Z. thanks the financial support from the National Natural Science Foundation of China (Grant Nos. 22078099, 22072171, 21776090). The project is partially supported by the China Postdoctoral Science Foundation (Grant No. 2020M671830).

语种：英文

外文关键词：Platinum alloys - Synthesis (chemical) - Aldehydes - Mesoporous materials - Metal nanoparticles - Catalyst activity - Metals - Tin alloys - Binary alloys - Hydrogenation - Metal ions - Micelles - Silica - Molar ratio - Nanoreactors

摘要：Hollow mesoporous nanoreactors with encaged functional nanoparticles are promising heterogeneous catalysts due to the advantages related to their hollow cavities. In this study, we employ metal ion-bound polymer micelles to synthesize PtSn alloy nanoparticle-encaged hollow mesoporous nanoreactors (PtSn@HMSNs), which contain similar to 4 nm PtSn alloy NPs located in similar to 13 nm hollow cavities and relatively large (similar to 9 nm) mesoporous channels in silica shells. Relative to monometallic Pt@HMSNs and supported Pt1Sn0.3/SiO2, Pt1Sn0.3@HMSNs exhibit greatly enhanced activity and selectivity for hydrogenation of furfural to furfuryl alcohol. At 1.0 MPa H-2, 100 degrees C, and a furfural/Pt molar ratio of 1884:1, 97.5% of furfuryl alcohol yield was achieved in 5.0 h. The dramatically promoted catalytic performance of Pt1Sn0.3@HMSNs can be assigned to the confinement effect that the location of active NPs inside hollow cavities increases the collision rates between reactants and active NPs to promote catalytic activity, as well as the synergistic effect between Pt and Sn.