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The effect of supports on the activity of methane dissociation over Rh catalysts
Wang Rui; Xu Hengyong; Chen Yanxin; Li Wenzhao
KeywordMethane Dissociation Rhodium Alumina Silica Supported Catalyst Ceria Interaction Acidity
Source PublicationCHINESE JOURNAL OF CATALYSIS
2007-04-01
Volume28Issue:4Pages:293-295
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordZEOLITE ; CO2
AbstractThe Rh-CeO2, interaction and the activity of CH4 dissociation were investigated on Al2O3- and SiO2-supported Rh catalysts by using the pulse reaction technique, infrared spectroscopy of CO adsorbed, and infrared spectroscopy of pyridine adsorbed. The Rh-CeO2 interaction was strongly influenced by the acidity of support. Addition of CeO2, to Rh/Al2O3 increased the number of Lewis acid sites on Al2O3, which in turn enhanced the ability of Al2O3 to accept electrons. This decreased the electron density of Rh and consequently facilitated the activation and dissociation of CH4 on Rh. On the contrary, the addition of CeO2 to Rh/SiO2 decreased both the number and the strength of Lewis acid sites on SiO2, which weakened the electron- accepting ability of SiO2. As a result, it brought out an increase in the electron density of Rh and inhibited CH4 dissociation on Rh.
Language英语
WOS IDWOS:000246604600003
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/140423
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China
2.Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang Rui,Xu Hengyong,Chen Yanxin,et al. The effect of supports on the activity of methane dissociation over Rh catalysts[J]. CHINESE JOURNAL OF CATALYSIS,2007,28(4):293-295.
APA Wang Rui,Xu Hengyong,Chen Yanxin,&Li Wenzhao.(2007).The effect of supports on the activity of methane dissociation over Rh catalysts.CHINESE JOURNAL OF CATALYSIS,28(4),293-295.
MLA Wang Rui,et al."The effect of supports on the activity of methane dissociation over Rh catalysts".CHINESE JOURNAL OF CATALYSIS 28.4(2007):293-295.
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