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Structures and Catalytic Activities of LaSrCoO4 and LaSrCoO3.6F0.4 Mixed Oxides

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Abstract:

The perovskite-like LaSrCoO4 and LaSrCoO3.6F0.4 mixed oxides were prepared by the polyglycol gel method, investigated by using the XRD, TEM, BET, O2-TPD and XPS methods, and used successfully for CO and C3H8 oxidization. The results indicate that LaSrCoO4 and LaSrCoO3.6F0.4 mixed oxides have K2NiF4 structure. The catalytic activity of LaSrCoO4 is better than that of LaSrCoO3.6F0.4, this is explained in terms of more mobile lattice oxygen, higher content of Co3+, more oxygen vacancies, smaller particle size and larger BET surface areas of LaSrCoO4.

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Periodical:

Applied Mechanics and Materials (Volumes 55-57)

Pages:

1957-1961

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.55-57.1957

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Online since:

May 2011

Authors:

Xiao Mao Yang

Keywords:

C3H8 Oxidation, CO Oxidation, LaSrCoO3.6F0.4, LaSrCoO4, Perovskite-Like, Polyglycol Gel Method

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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