Design of Heterogeneous Catalysts Using Nanospace of Hollow Silica and Their Catalytic Applications

DOI
  • Kuwahara Yasutaka
    Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University Unit of Elements Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University
  • Yamashita Hiromi
    Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University Unit of Elements Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University

Bibliographic Information

Other Title
  • 中空シリカのナノ空間を利用した固体触媒の設計と応用

Abstract

Hollow silica spheres possessing void space from tens to hundreds of nanometers in size can be used as a platform material for the design of advanced heterogeneous catalysts, because the enclosed void space is expected to be useful for encapsulation and compartmentation of active catalytic components, and the outer silica shell acts as a physical barrier to protect them from leaching and aggregation or endow them with a molecular sieving property. Although a number of strategies have been developed for the synthesis of hollow silica structures encapsulating catalytic components such as metal oxides and metal nanoparticles in their internal void spaces (so-called “yolk–shell” structures), most of them requires complex multiple synthetic procedures. We have recently developed several methodologies for the synthesis of yolk–shell structured catalysts by using O/W microemulsions or aminopolymers as templates. In this review, the synthesis of hollow silica structures containing TiO2 particles or Pd nanoparticles as catalytically active species and their catalytic applications are described.

Journal

  • ゼオライト

    ゼオライト 37 (3), 80-90, 2020-07-15

    Japan Association of Zeolite

Details 詳細情報について

  • CRID
    1390848250130927360
  • DOI
    10.20731/zeoraito.37.3.80
  • ISSN
    09187774
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Disallowed

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