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Catalytic combustion of benzene over gamma-alumina supported chromium oxide catalysts
Xing, Tao1,2; Wan, Haiqin1; Shao, Yun1; Han, Yuxiang1; Xu, Zhaoyi1; Zheng, Shourong1
2013-11-05
发表期刊APPLIED CATALYSIS A-GENERAL
卷号468页码:269-275
摘要The gamma-alumina supported chromium oxide catalysts with Cr loadings varying from 1.7 to 13.6 wt.% were prepared by the impregnation method and characterized using N-2 adsorption, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), UV-vis spectroscopy and Raman spectroscopy. Benzene combustion catalyzed by the catalysts was investigated. The results showed that chromia was well dispersed on the surface of gamma-Al2O3 with a monolayer dispersion capacity of 7.5 wt.%. For the supported chromia catalyst with a Cr loading of 1.7 wt.%, only Cr6+ species were observed. Increasing Cr loading to 5.1 wt.% led to the presence of both Cr3+ and Cr6+ species. Catalytic benzene combustion over the catalysts was found to be strongly dependent on Cr loading amount. For supported chromia catalyst with a Cr loading of 8.5 wt.%, complete benzene combustion was achieved at 350 degrees C which was substantially lower than the temperature for other catalysts, indicating that supported chromia catalyst at a near monolayer dispersion capacity exhibited the optimum catalytic behavior for benzene combustion. (C) 2013 Elsevier B.V. All rights reserved.
文章类型Article
关键词Gamma-alumina Supported Chromia Catalyst Catalytic Combustion Benzene Monolayer Dispersion
WOS标题词Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine
DOI10.1016/j.apcata.2013.08.054
研究领域[WOS]Chemistry ; Environmental Sciences & Ecology
关键词[WOS]VOLATILE ORGANIC-COMPOUNDS ; OXIDATIVE DEHYDROGENATION ; METAL-OXIDES ; DEEP OXIDATION ; GOLD CATALYSTS ; ETHYL-ACETATE ; SURFACE-AREA ; CO OXIDATION ; PROPANE ; PERFORMANCE
收录类别SCI
语种英语
WOS类目Chemistry, Physical ; Environmental Sciences
WOS记录号WOS:000327804200031
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文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10026
专题中国科学院广州能源研究所
作者单位1.Nanjing Univ, Sch Environm, Jiangsu Key Lab Vehicle Emiss Control, State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Jiangsu, Peoples R China
2.Chinese Acad Sci, GuangZhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
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Xing, Tao,Wan, Haiqin,Shao, Yun,et al. Catalytic combustion of benzene over gamma-alumina supported chromium oxide catalysts[J]. APPLIED CATALYSIS A-GENERAL,2013,468:269-275.
APA Xing, Tao,Wan, Haiqin,Shao, Yun,Han, Yuxiang,Xu, Zhaoyi,&Zheng, Shourong.(2013).Catalytic combustion of benzene over gamma-alumina supported chromium oxide catalysts.APPLIED CATALYSIS A-GENERAL,468,269-275.
MLA Xing, Tao,et al."Catalytic combustion of benzene over gamma-alumina supported chromium oxide catalysts".APPLIED CATALYSIS A-GENERAL 468(2013):269-275.
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