Catalytic combustion of benzene over gamma-alumina supported chromium oxide catalysts

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	Catalytic combustion of benzene over gamma-alumina supported chromium oxide catalysts
	Xing, Tao 1,2; Wan, Haiqin 1; Shao, Yun 1; Han, Yuxiang 1; Xu, Zhaoyi 1; Zheng, Shourong 1
刊名	applied catalysis a-general
	2013-11-05
卷号	468 页码:269-275
关键词	gamma-Alumina supported chromia catalyst Catalytic combustion Benzene Monolayer dispersion
英文摘要	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.
WOS标题词	science & technology ; physical sciences ; life sciences & biomedicine
类目[WOS]	chemistry, physical ; environmental sciences
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记录号	WOS:000327804200031
内容类型	期刊论文
源URL	[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
推荐引用方式 GB/T 7714	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.