Activity and deactivation behavior of Au/LaMnO3 catalysts for CO oxidation

被引：0

作者：

贾美林 ^{[1
]}

李旭 ^{[1
]}

照日格图 ^{[1
]}

沈岳年 ^{[2
]}

李云霞 ^{[1
]}

机构：

[1] College of Chemistry&Environmental Science,Key Laboratory of Physics and Chemistry of Functional Materials,Inner Mongolia Normal University 2. College of Chemistry and Chemical Engineering,Inner Mong

来源：

Journal of Rare Earths | 2011年 / 29卷 / 03期

关键词：

deactivation; gold catalyst; Au/LaMnO3; CO oxidation; long-term stability; rare earths;

D O I：

暂无

中图分类号：

TG146.45 [];

学科分类号：

080502 ;

摘要：

Perovskite oxide LaMnO3 was prepared by sol-gel method and the nanosize Au/LaMnO3 catalyst was prepared by deposition-precipitation(DP) method in the paper.Characterization of the catalyst sample was made by X-ray diffractometer(XRD),atom absorption spectra(AAS) and X-ray photoelectron spectroscopy(XPS) instrumental methods.The activity,long-term stability and the reasons for deactivation of the gold catalyst in CO oxidation were investigated.The experiment results demonstrated that the Au/LaMnO3 catalyst exhibited high stability in the ambient storage process.However,the gradual decrease in initial activity during 100 h reaction was still observed,which could be ascribed to the aggregation of gold particles and the transfer from gold ion to the metal gold.

引用

页码：213 / 216

页数：4

共 50 条

[1] Activity and deactivation behavior of Au/LaMnO3 catalysts for CO oxidation
Jia Meilin
Li Xu
Zhaorigetu
Shen Yuenian
Li Yunxia
[J]. JOURNAL OF RARE EARTHS, 2011, 29 (03) : 213 - 216
[2] Structural characterization and CO oxidation activity of nanostructured LaMnO3 catalysts
Chen, M
Huang, HQ
Zheng, XM
Morris, MA
[J]. AUSTRALIAN JOURNAL OF CHEMISTRY, 2002, 55 (12) : 757 - 760
[3] Synthesis of nanostructure LaMnO3 and LaCoO3 catalysts and their catalytic activity in oxidation reaction
Chen, M
Zheng, XM
[J]. INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY, 2002, 41 (11): : 2277 - 2281
[4] Preparation of Supported LaMnO3 Catalysts by Selective Deposition on Alumina and Their Catalytic Activity for Propane Oxidation
Asada, Teruaki
Kusaba, Hajime
Einaga, Hisahiro
Teraoka, Yasutake
[J]. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 2015, 88 (08) : 1036 - 1046
[5] CO OXIDATION OVER AU/ZRO2 CATALYSTS - ACTIVITY, DEACTIVATION BEHAVIOR, AND REACTION-MECHANISM
KNELL, A
BARNICKEL, P
BAIKER, A
WOKAUN, A
[J]. JOURNAL OF CATALYSIS, 1992, 137 (02) : 306 - 321
[6] Activity, stability, and deactivation behavior of supported Au/TiO2 catalysts in the CO oxidation and preferential CO oxidation reaction at elevated temperatures
Denkwitz, Yvonne
Schumacher, Birgit
Kucerova, Gabriela
Behm, R. Juergen
[J]. JOURNAL OF CATALYSIS, 2009, 267 (01) : 78 - 88
[7] Partial Oxidation and CO2-ATR of Methane over Rh/LaMnO3 Honeycomb Catalysts
Barbato, P. S.
Landi, G.
[J]. CATALYSIS LETTERS, 2010, 137 (1-2) : 16 - 27
[8] Partial Oxidation and CO2-ATR of Methane over Rh/LaMnO3 Honeycomb Catalysts
P. S. Barbato
G. Landi
[J]. Catalysis Letters, 2010, 137 : 16 - 27
[9] LaMnO3 perovskite supported noble metal catalysts for the total oxidation of methane
Giebeler, Lars
Kiessling, Dieter
Wendt, Gerhard
[J]. CHEMICAL ENGINEERING & TECHNOLOGY, 2007, 30 (07) : 889 - 894
[10] OXIDATION-REDUCTION BEHAVIOR OF SR AND MG DOPED LAMNO3
KUO, J
NASRALLAH, MM
ANDERSON, HU
[J]. AMERICAN CERAMIC SOCIETY BULLETIN, 1984, 63 (08): : 1005 - 1005

← 1 2 3 4 5 →