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Trimodel hierarchical yolk-shell porous materials TS-1@mesocarbon:Synthesis and catalytic application 被引量:1
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作者 Hong-Gen Peng Xiao-Hong Li +1 位作者 Le Xu Peng Wu 《Chinese Chemical Letters》 SCIE CAS CSCD 2013年第7期559-562,共4页
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 organ... 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. 展开更多
关键词 Hierarchical porous materials Yolk-shell structure Zeolite mesoporous carbon
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