Trimodel hierarchical yolk-shell porous materials TS-1@mesocarbon:Synthesis and catalytic application  

作　　者：Hong-Gen Peng Xiao-Hong Li Le Xu Peng Wu 

机构地区：[1]Shanghai Key Laboratory of Green Chemistry and Chemical Processes,Department of Chemistry,East China Normal University

出　　处：《Chinese Chemical Letters》2013年第7期559-562,共4页中国化学快报（英文版）

基　　金：the National Natural Science Foundation of China(No.21273076,U1162102);the National Key Technology R&D Program(No.2012BAE05B02);Ph.D Programs Foundation of Ministry of Education(No.2012007613000);the Shanghai Leading Academic Discipline Project(B409)

摘　　要：Trimodal hierarchical yolk-shell materials consisting of TS-1 core and mesoporous carbon shell （YS-TS- I@MC） was successfully synthesized by using TS-l@mesosilica as hard template, sucrose as carbon source and organic base tetrapropylammonium hydroxide （TPAOH） as silica etching agent. The resultant YS-TS-I@MC contains the micropores （0.51 nm） in TS-1 core, the mesopores （2.9 rim） in carbon shell as well as a void or a stack pore between TS-1 fragements （TS-1 intercrystal mesopores, -18.4 nm）. Under the rigorous etching conditions, the crystalline structure of TS-1 core was well retained. The YS-TS- I@MC served as a good support for palladium nano-particles （Pd NPs） or Rh（OH）x species, giving rise to efficient bifunctional catalysts for the tandem reactions including one-pot synthesis of propylene oxide or amides.Trimodal hierarchical yolk-shell materials consisting of TS-1 core and mesoporous carbon shell （YS-TS- I@MC） was successfully synthesized by using TS-l@mesosilica as hard template, sucrose as carbon source and organic base tetrapropylammonium hydroxide （TPAOH） as silica etching agent. The resultant YS-TS-I@MC contains the micropores （0.51 nm） in TS-1 core, the mesopores （2.9 rim） in carbon shell as well as a void or a stack pore between TS-1 fragements （TS-1 intercrystal mesopores, -18.4 nm）. Under the rigorous etching conditions, the crystalline structure of TS-1 core was well retained. The YS-TS- I@MC served as a good support for palladium nano-particles （Pd NPs） or Rh（OH）x species, giving rise to efficient bifunctional catalysts for the tandem reactions including one-pot synthesis of propylene oxide or amides.

关 键 词：Hierarchical porous materials Yolk-shell structure Zeolite Mesoporous carbon 

分 类 号：TB383.4[一般工业技术—材料科学与工程]