Catalytic Properties of CuMoO4 Doped with Co, Ni, and Ag

Modified copper molybdate phases which differ in unit-cell parameters from undoped CuMoO 4 have been prepared using the pyrolysis of mixtures of Cu, Mo, and Co (Ni, Ag) extracts. Increasing the Co or Ni content from 1 to 7 at % increases the content of the modified copper molybdate in the samples, a...

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Bibliographic Details
Published in:Inorganic materials 2010-12, Vol.46 (12), p.1359-1364
Main Authors: Makarevich, K. S., Lebukhova, N. V., Chigrin, P. G., Karpovich, N. F.
Format: Article
Language:English
Subjects:
Carbon black
Catalysis
Catalysts
Chemistry
Chemistry and Materials Science
Copper
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
Molybdates
Nickel
Phases
Silver
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Summary:Modified copper molybdate phases which differ in unit-cell parameters from undoped CuMoO 4 have been prepared using the pyrolysis of mixtures of Cu, Mo, and Co (Ni, Ag) extracts. Increasing the Co or Ni content from 1 to 7 at % increases the content of the modified copper molybdate in the samples, and their catalytic activity for the oxidation of carbon black decreases. In contrast, doping with 1 at % Ag markedly improves the catalytic performance of the molybdate. The synthesized copper molybdate phases are capable of reducing the CO yield in catalytic carbon black combustion. When the process was catalyzed by Co-doped CuMoO 4 , no carbon monoxide was detected among the combustion products.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168510120162