Methane combustion over B-site partially substituted perovskite-type LaFeO3 prepared by sol-gel method

Ziyi Zhong; Kaidong Chen; Yong Ji; Qijie Yan

doi:10.1016/S0926-860X(97)00003-3

Methane combustion over B-site partially substituted perovskite-type LaFeO₃ prepared by sol-gel method

Ziyi Zhong, Kaidong Chen, Yong Ji, Qijie Yan^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

111 Scopus citations

Abstract

Ultrafine perovskite-type complex oxides LaFe_1-yA_yO_3-λ (A=Mn, Al, Co) were prepared by sol-gel method using citric acid as complex agent, and characterized by XRD, TPR, TG and XPS techniques. The catalytic activities for methane combustion were tested and compared with that of the large particle oxides having the same composition. It was shown that the catalytic activities of ultrafine LaFe_1-yA_yO_3-λ complex oxides were much higher than that of LaFeOs sample due to the increase of high valence B-site cations and lattice oxygen content by the substitution of B-site elements. Much higher catalytic activities were also observed for the ultrafine perovskite-type complex oxides compared to their large particle counterparts.

Original language	English
Pages (from-to)	29-41
Number of pages	13
Journal	Applied Catalysis A: General
Volume	156
Issue number	1
DOIs	https://doi.org/10.1016/S0926-860X(97)00003-3
State	Published - 14 Aug 1997
Externally published	Yes

Keywords

B-site partially substituted LaFeO
Methane combustion
Ultrafine particles

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10.1016/S0926-860X(97)00003-3

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title = "Methane combustion over B-site partially substituted perovskite-type LaFeO3 prepared by sol-gel method",

abstract = "Ultrafine perovskite-type complex oxides LaFe1-yAyO3-λ (A=Mn, Al, Co) were prepared by sol-gel method using citric acid as complex agent, and characterized by XRD, TPR, TG and XPS techniques. The catalytic activities for methane combustion were tested and compared with that of the large particle oxides having the same composition. It was shown that the catalytic activities of ultrafine LaFe1-yAyO3-λ complex oxides were much higher than that of LaFeOs sample due to the increase of high valence B-site cations and lattice oxygen content by the substitution of B-site elements. Much higher catalytic activities were also observed for the ultrafine perovskite-type complex oxides compared to their large particle counterparts.",

keywords = "B-site partially substituted LaFeO, Methane combustion, Ultrafine particles",

author = "Ziyi Zhong and Kaidong Chen and Yong Ji and Qijie Yan",

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T1 - Methane combustion over B-site partially substituted perovskite-type LaFeO3 prepared by sol-gel method

AU - Zhong, Ziyi

AU - Chen, Kaidong

AU - Ji, Yong

AU - Yan, Qijie

PY - 1997/8/14

Y1 - 1997/8/14

N2 - Ultrafine perovskite-type complex oxides LaFe1-yAyO3-λ (A=Mn, Al, Co) were prepared by sol-gel method using citric acid as complex agent, and characterized by XRD, TPR, TG and XPS techniques. The catalytic activities for methane combustion were tested and compared with that of the large particle oxides having the same composition. It was shown that the catalytic activities of ultrafine LaFe1-yAyO3-λ complex oxides were much higher than that of LaFeOs sample due to the increase of high valence B-site cations and lattice oxygen content by the substitution of B-site elements. Much higher catalytic activities were also observed for the ultrafine perovskite-type complex oxides compared to their large particle counterparts.

AB - Ultrafine perovskite-type complex oxides LaFe1-yAyO3-λ (A=Mn, Al, Co) were prepared by sol-gel method using citric acid as complex agent, and characterized by XRD, TPR, TG and XPS techniques. The catalytic activities for methane combustion were tested and compared with that of the large particle oxides having the same composition. It was shown that the catalytic activities of ultrafine LaFe1-yAyO3-λ complex oxides were much higher than that of LaFeOs sample due to the increase of high valence B-site cations and lattice oxygen content by the substitution of B-site elements. Much higher catalytic activities were also observed for the ultrafine perovskite-type complex oxides compared to their large particle counterparts.

KW - B-site partially substituted LaFeO

KW - Methane combustion

KW - Ultrafine particles

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DO - 10.1016/S0926-860X(97)00003-3

M3 - 文章

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IS - 1

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Methane combustion over B-site partially substituted perovskite-type LaFeO₃ prepared by sol-gel method

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Keywords

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