Effect of Cu during Non-isothermal hydrogen reduction of MoO3

  • Gil Su Kim
  • , Dae Gun Kim
  • , Sung Tag Oh
  • , Myung Jin Suk
  • , Young Do Kim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Scopus citations

Abstract

The effect of Cu on the hydrogen reduction of molybdenum oxide powders was investigated by measuring the humidity change during a non-isothermal process of hydrogen reduction. The presence of Cu induced a shift in the reduction temperature and strongly affected the reduction processes of MoO 3-→Mo4O11→MoO2, which comprised the contained chemical vapor transport of MoOx(OH) 2. This study suggests that the surface of the Cu grains acts as a nucleation site for the reduction of MoOx(OH)2 to MoO 2 particles from MoO3 or Mo4O11 phases. Such an activated reduction process results in the deposition of metallic Mo and MoO2 particles on the surface of the Cu grains.

Original languageEnglish
Title of host publicationProgress in Powder Metallurgy - Proceedings of the 2006 Powder Metallurgy World Congress and Exhibition (PM 2006)
PublisherTrans Tech Publications Ltd
Pages1253-1256
Number of pages4
EditionPART 2
ISBN (Print)0878494197, 9780878494194
DOIs
StatePublished - 2007
Event2006 Powder Metallurgy World Congress and Exhibition, PM 2006 - Busan, Korea, Republic of
Duration: 24 Sep 200628 Sep 2006

Publication series

NameMaterials Science Forum
NumberPART 2
Volume534-536
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference2006 Powder Metallurgy World Congress and Exhibition, PM 2006
Country/TerritoryKorea, Republic of
CityBusan
Period24/09/0628/09/06

Keywords

  • Chemical vapor transport
  • Hydrogen reduction
  • Molybdenum oxide

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