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The roles of hydroxyapatite and FeOx in a Au/FeOx-hydroxyapatite catalyst for CO oxidation
Zhao Kunfeng1,2; Qiao Botao1; Zhang Yanjie1; Wang Junhu1
关键词Gold Iron Oxide Hydroxyapatite Carbon Monoxide Sintering Resistance
刊名CHINESE JOURNAL OF CATALYSIS
2013-07-01
DOI10.1016/S1872-2067(12)60590-7
34期:7页:1386-1394
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]SUPPORTED GOLD CATALYSTS ; SELECTIVE OXIDATION ; CARBON-MONOXIDE ; TEMPERATURE ; PERFORMANCE ; FE2O3 ; PHOSPHATES ; ADSORPTION ; MECHANISM ; AL2O3
英文摘要A FeOx modified hydroxyapatite (HAP, Ca-10(PO4)(6)(OH)(2))-supported gold catalyst is highly active and stable during CO oxidation at low temperature, and it is also sinter-resistant to calcination at temperature up to 600 degrees C. This work used catalyst characterization and activity tests to investigate the roles of the HAP support and FeOx promoter in CO oxidation. XPS results suggested that a strong interaction between the HAP support and the Au and FeOx nanoparticles gave the sintering resistance. In situ DRIFT studies revealed that the addition of FeOx changed the nature of the reaction mechanism and intermediates to promote catalytic activity. TEM and Mossbauer examination of the spent catalysts in combination with the in situ DRIFT results suggested that the better stability of Au/FeOx-HAP originated from its better prevention of carbonate accumulation. (C) 2013, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000322425500014
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被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/137717
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Zhao Kunfeng,Qiao Botao,Zhang Yanjie,et al. The roles of hydroxyapatite and FeOx in a Au/FeOx-hydroxyapatite catalyst for CO oxidation[J]. CHINESE JOURNAL OF CATALYSIS,2013,34(7):1386-1394.
APA Zhao Kunfeng,Qiao Botao,Zhang Yanjie,&Wang Junhu.(2013).The roles of hydroxyapatite and FeOx in a Au/FeOx-hydroxyapatite catalyst for CO oxidation.CHINESE JOURNAL OF CATALYSIS,34(7),1386-1394.
MLA Zhao Kunfeng,et al."The roles of hydroxyapatite and FeOx in a Au/FeOx-hydroxyapatite catalyst for CO oxidation".CHINESE JOURNAL OF CATALYSIS 34.7(2013):1386-1394.
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