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Gold-Iron Oxide Catalyst for CO Oxidation: Effect of Support Structure
Cui, HZ; Guo, Y; Wang, X; Jia, CJ; Si, R; Jia, CJ (reprint author), Shandong Univ, Sch Chem & Chem Engn, Key Lab Colloid & Interface Chem, Key Lab Special Aggregated Mat, Jinan 250100, Peoples R China.; Si, R (reprint author), Chinese Acad Sci, Key Lab Interfacial Phys & Technol, Shanghai Synchrotron Radiat Facil, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China.
2016
Source PublicationCATALYSTS
ISSN2073-4344
Volume6Issue:3Pages:
Subtype期刊文献
AbstractGold-iron oxide (Au/FeOx) is one of the highly active catalysts for CO oxidation, and is also a typical system for the study of the chemistry of gold catalysis. In this work, two different types of iron oxide supports, i.e., hydroxylated (Fe_OH) and dehydrated iron oxide (Fe_O), have been used for the deposition of gold via a deposition-precipitation (DP) method. The structure of iron oxide has been tuned by either selecting precipitated pH of 6.7-11.2 for Fe_OH or changing calcination temperature of from 200 to 600 degrees C for Fe_O. Then, 1 wt. % Au catalysts on these iron oxide supports were measured for low-temperature CO oxidation reaction. Both fresh and used samples have been characterized by multiple techniques including transmission electron microscopy (TEM) and high-resolution TEM (HRTEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), X-ray absorption near edge structure (XANES) and temperature-programmed reduction by hydrogen (H-2-TPR). It has been demonstrated that the surface properties of the iron oxide support, as well as the metal-support interaction, plays crucial roles on the performance of Au/FeOx catalysts in CO oxidation.
KeywordWater-gas Shift Low-temperature Oxidation Au/fe2o3 Catalysts Carbon-monoxide Deposition-precipitation Au/alpha-fe2o3 Catalyst Nanoparticles Alpha-fe2o3 Particles Au/ceo2
DOI10.3390/catal6030037
Indexed BySCI
Language英语
WOS IDWOS:000373798300007
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/25734
Collection中科院上海应用物理研究所2011-2018年
Corresponding AuthorJia, CJ (reprint author), Shandong Univ, Sch Chem & Chem Engn, Key Lab Colloid & Interface Chem, Key Lab Special Aggregated Mat, Jinan 250100, Peoples R China.; Si, R (reprint author), Chinese Acad Sci, Key Lab Interfacial Phys & Technol, Shanghai Synchrotron Radiat Facil, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China.
Recommended Citation
GB/T 7714
Cui, HZ,Guo, Y,Wang, X,et al. Gold-Iron Oxide Catalyst for CO Oxidation: Effect of Support Structure[J]. CATALYSTS,2016,6(3):—.
APA Cui, HZ.,Guo, Y.,Wang, X.,Jia, CJ.,Si, R.,...&Si, R .(2016).Gold-Iron Oxide Catalyst for CO Oxidation: Effect of Support Structure.CATALYSTS,6(3),—.
MLA Cui, HZ,et al."Gold-Iron Oxide Catalyst for CO Oxidation: Effect of Support Structure".CATALYSTS 6.3(2016):—.
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