Self-Organized nanostructured Ag/P2O5/SiO2 material as a catalyst for high-temperature selective oxidation of alcohols

Alexey S. Knyazev, Oleg V. Magaev, Alexey A. Krejker, Grigoriy V. Mamontov, Elena M. Knyazeva, Eldar M. Dahnavi, Olga V. Vodyankina

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

New type of Ag-containing nanostructured catalyst for high-temperature alcohol oxidation was developed on the basis of mesoporous SiO2 support. Active component (silver clusters/nanoparticles) stabilized by support surface and polyphosphate inside the pores. It was shown that Ag/P2O5/SiO2 catalyst provides high activity in the course of ethylene glycol oxidation to glyoxal at 500-600 °C. Formation of stable structure of catalyst during thermal treatment includes self-organization of mesoporous structure and chemical bonding of phosphate with silica. The catalyst treatment in red-ox conditions leads to reversible oxidation-reduction of silver and its redistribution from bulk to surface of the catalyst. Silver nanoparticles stabilized with silicaphosphate support are active species in the ethylene glycol oxidation into glyoxal.

Original languageEnglish
Title of host publicationMultifunctional Chemical Materials and Technologies
EditorsYuriy G. Slizhov, Irina A. Kurzina
PublisherTrans Tech Publications Ltd
Pages126-132
Number of pages7
ISBN (Print)9783038356127
DOIs
Publication statusPublished - 2015
EventInternational Scientific Conference on Multifunctional Chemical Materials and Technologies, MCMT 2015 - Tomsk, Russian Federation
Duration: 21 May 201522 May 2015

Publication series

NameKey Engineering Materials
Volume670
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Other

OtherInternational Scientific Conference on Multifunctional Chemical Materials and Technologies, MCMT 2015
CountryRussian Federation
CityTomsk
Period21.5.1522.5.15

Keywords

  • Catalyst
  • Selective oxidation of alcohols
  • Self-organization under red-ox conditions
  • Silica-phosphate support
  • Silver nanoparticles

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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