Preparation of porous ceramometal composites through the stages of mechanical activation and hydrothermal partial oxidation of Me-Al powders

Serguei F. Tikhov, Vladislav A. Sadykov, Konstantin R. Valeev, Aleksey N. Salanov, Svetlana V. Cherepanova, Yulia N. Bespalko, Vladimir E. Ramanenkau, Yavgenii Ya Piatsiushyk, Sergey V. Dimov

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Basic stages of porous cermets preparation from MeAl (Me = Cr, Cu, Co, Fe) powders are elaborated including mechanical activation of Me-Al blends, soft hydrothermal treatment of mechanically alloyed blends followed by thermal treatment thus allowing to control their mechanical, thermophysical and textural properties. Ceramometal monoliths with metallic particles (up to 80 wt.%) randomly distributed in the oxide matrix are characterized by the hierarchical pore structure with developed ultramacropores which provides their high permeability. Mesoporosity of ceramometal monoliths was developed by incorporation of mesoporous components into their structure. Monolithic catalysts based on these cermet substrates were shown to be promising for different fields of application in catalysis.

Original languageEnglish
Pages (from-to)232-238
Number of pages7
JournalCatalysis Today
Volume246
DOIs
Publication statusPublished - 15 May 2015

Keywords

  • MeAl powders
  • Mechanical alloying
  • Porous cermets
  • Textural, mechanical and catalytic properties

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