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Combinatorial synthesis of oxide powders

Published online by Cambridge University Press:  31 January 2011

H. M. Reichenbach  and
P. J. McGinn
H. M. Reichenbach
Affiliation:
Department of Chemical Engineering, University of Notre Dame, Notre Dame, Indiana 46556
P. J. McGinn
Affiliation:
Department of Chemical Engineering, University of Notre Dame, Notre Dame, Indiana 46556
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Abstract

Combinatorial libraries of the mixed oxide system Cu1−xCexO3 (0 ≤ x ≤ 1) have been generated using a modified Pechini powder synthesis process in conjunction with inkjet deposition. Mixed oxide crystalline powders were formed at temperatures below 500 °C. These powders have particle sizes in the range of 20.0 to 85.5 nm, and the powder surface area increases with cerium content. In addition, each of the mixed oxides (0 < x < 1) displayed catalytic activity in the CO oxidation reaction at temperatures between 150 and 350 °C. This novel protocol has also been used to generate a library of oxide powders of the perovskite-like La1−xSrxCoO3?δ system. The La–Sr–Co–O system from this protocol exhibits lower average surface areas than the Cu–Ce–O system (approximately 11.2 m2/g) due to higher decomposition temperatures but still acts as an active catalyst for the CO oxidation reaction.

Type
Articles
Information
Journal of Materials Research , Volume 16 , Issue 4 , April 2001 , pp. 967 - 974
Copyright
Copyright © Materials Research Society 2001

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