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High and stable catalytic activity of Ag/Fe2O3 catalysts derived from MOFs for CO oxidation
Zhang, Xiaodong1; Yang, Yang1; Song, Liang1; Wang, Yuxin2; He, Chi3; Wang, Zhong4; Cui, Lifeng1
2018-03-01
发表期刊MOLECULAR CATALYSIS
ISSN2468-8231
卷号447页码:80-89
摘要In this paper, highly active Ag/Fe2O3 catalysts derived from MIL-100(Fe) were synthesized by a traditional wet impregnation method. The catalysts were characterized by N-2 adsorption-desorption, X-ray diffraction (XRD), inductively coupled plasma optical emission spectroscopy (ICP-OES), transmission electron microscopy (TEM), H-2-temperature program reduction (H-2-TPR) and X-ray photoelectron spectroscopy (XPS). The effects of Fe/Ag ratios and pretreatment atmosphere on the structure and catalytic activity for CO oxidation of Ag/Fe2O3 catalysts were investigated. It was found that rarefied oxygen environment in a muffle furnace was beneficial to the formation of small size Ag-0 species and larger specific surface area, which could be due to the reductive gases (H-2) produced by the decomposition of MIL-100(Fe) and nitrate. The Ag/Fe2O3 catalyst with Fe/Ag atomic ratio of 15 calcined in a muffle furnace showed a high catalytic performance (T-100 = 160 degrees C), stability and reproducibility, which could be related to the large number of Ag species on the surface and larger specific surface area. In addition, the effect of water vapor on catalytic activity was also studied. The activity of Ag/Fe2O3 catalyst with Fe/Ag ratio of 15 was slightly affected by the 1 vol,% moisture in the feed gas, but still show high catalytic activity with T-100 = 190 degrees C.
文章类型Article
关键词Co Oxidation Mil-100(Fe) Ag/fe2o3 Porosity
WOS标题词Science & Technology ; Physical Sciences
DOI10.1016/j.jmcat.2018.01.007
关键词[WOS]POROUS ALPHA-FE2O3 NANORODS ; METAL-ORGANIC FRAMEWORK ; LOW-TEMPERATURE ; VISIBLE-LIGHT ; FACILE SYNTHESIS ; CARBON-MONOXIDE ; HIERARCHICAL MICROSPHERES ; PHOTOCATALYSIS MECHANISM ; HEXAVALENT CHROMIUM ; EFFICIENT CATALYSTS
收录类别SCI
语种英语
WOS研究方向Chemistry
项目资助者National Natural Science Foundation of China(21507086 ; Shanghai Sailing Program(16YF1408100) ; 51508327 ; 41673093 ; 41641035)
WOS类目Chemistry, Physical
WOS记录号WOS:000426233500010
出版者ELSEVIER SCIENCE BV
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/10608
专题中国科学院青岛生物能源与过程研究所
通讯作者Zhang, Xiaodong; Cui, Lifeng
作者单位1.Univ Shanghai Sci & Technol, Sch Environm & Architecture, Environm & Low Carbon Res Ctr, Shanghai 200093, Peoples R China
2.Taizhou Vocat & Tech Coll, Inst Appl Biotechnol, Taizhou 318000, Zhejiang, Peoples R China
3.Xi An Jiao Tong Univ, Sch Energy & Power Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Shaanxi, Peoples R China
4.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Qingdao, Shandong, Peoples R China
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Zhang, Xiaodong,Yang, Yang,Song, Liang,et al. High and stable catalytic activity of Ag/Fe2O3 catalysts derived from MOFs for CO oxidation[J]. MOLECULAR CATALYSIS,2018,447:80-89.
APA Zhang, Xiaodong.,Yang, Yang.,Song, Liang.,Wang, Yuxin.,He, Chi.,...&Cui, Lifeng.(2018).High and stable catalytic activity of Ag/Fe2O3 catalysts derived from MOFs for CO oxidation.MOLECULAR CATALYSIS,447,80-89.
MLA Zhang, Xiaodong,et al."High and stable catalytic activity of Ag/Fe2O3 catalysts derived from MOFs for CO oxidation".MOLECULAR CATALYSIS 447(2018):80-89.
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