Preparation of Highly-Dispersed Powders of Cobalt, Nickel, Molybdenum and Tungsten Oxides by Modified Sol-Gel Technique

The modified sol-gel technique for the preparation of Со, Ni, Mo and W oxides nanoand submicron powders as well as binary composites based on them was developed. The optimal parameters of synthesis of metal oxide nanopowders with a particle size less than 100 nm were determined. The developed approa...

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Bibliographic Details
Published inAdvances in Science and Technology Vol. 87; pp. 42 - 47
Main Authors Trusova, Elena A., Kotsareva, Klara V.
Format Journal Article
LanguageEnglish
Published Zurich Trans Tech Publications Ltd 31.10.2014
Subjects
Acetates
Alcohols
Chlorides
Cobalt
Cobalt oxalates
Molybdenum
Nickel
Sol gel process
Synthesis
MoO3
CoxOy
WO3
NiO
Modified Sol-Gel Method
Ultradispersed Powders
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Summary:The modified sol-gel technique for the preparation of Со, Ni, Mo and W oxides nanoand submicron powders as well as binary composites based on them was developed. The optimal parameters of synthesis of metal oxide nanopowders with a particle size less than 100 nm were determined. The developed approach allows to obtain the nanoscale metal oxide particles with the given sizes, varying their within range 10-1000 nm. Mesoporous composites containing Mo-, Co-, Ni-oxides, Al2O3 and Ti-silicate were synthesized, characterized and tested in the catalytic alcohol synthesis from CO and H2. It was found that selectivity to C1-C4-alcohols formed over model catalytic systems reaches 50-85% in temperature range 280-360°С.
Bibliography:Proceedings of the 13th International Ceramics Congress, part of CIMTEC 2014-13th International Ceramics Congress and 6th Forum on New Materials, June 8-13, 2014, Montecatini Terme, Italy
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Conference-1
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SourceType-Conference Papers & Proceedings-2
ISBN:3038352993
9783038352990
ISSN:1662-8969
1662-0356
DOI:10.4028/www.scientific.net/AST.87.42