Formation and stabilization of gold nanoparticles in organo-functionalized MCM-41 mesoporous materials and their catalytic applications

Chitta Ranjan Patra, Anirban Ghosh, Priyabrata Mukherjee, Murali Sastry, Rajiv Kumar

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

A new process for the synthesis and stabilization of gold nanoparticles within the cavities of propylamine functionalized mesoporous MCM-41 material is described wherein silanol groups present on the inner surface of the mesoporous silica reduce aqueous chloroaurate ions to form the Au nanoparticles, and the amine groups anchor the nanoparticles thus formed in the inner surface of the cavities. The nano-Au-NH2-MCM-41 hybrid material was characterized by XRD, UV-Vis spectroscopy, EDX, TG-DTA and N2 adsorption measurements. Further, this nano-Au-NH2-MCM-41 material shows promising catalytic activity and selectivity in the hydrogenation of styrene to ethylbenzene.

Original languageEnglish (US)
Pages (from-to)641-646
Number of pages6
JournalStudies in Surface Science and Catalysis
Volume141
DOIs
StatePublished - 2002

ASJC Scopus subject areas

  • Catalysis
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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