Effect of metal-support interaction on coking resistance of Rh-based catalysts in CH4/CO2 reforming
文献类型：期刊论文
| 作者 | Wang Rui; Liu Xuebin; Chen Yanxin; Li Wenzhao; Xu Hengyong |
| 刊名 | chinese journal of catalysis
 |
| 出版日期 | 2007-10-01 |
| 卷号 | 28期号:10页码:865-869 |
| 关键词 | methane carbon dioxide reforming rhodium metal-support interaction oxygen vacancy temperature-programmed oxidation |
| 英文摘要 | the effects of metal-support interaction on coking resistance of rh/al2o3, rh/sio2, and rh/ceo2 catalysts during ch4/co2 reforming were investigated. temperature-programmed reduction and temperature-programmed oxidation (tpo) over fresh and used catalysts suggested that for rh/al2o3 and rh/sio2, the strong interaction between the metal and support led to a high dispersion of rh after reduction. the ch, species formed on well-dispersed rh with small rh crystals could act as active intermediates to react with co2 to form co and h-2 . on the other hand, the carbon species formed on isolated rh with large rh crystals had a relatively low reactivity with co2, which was attributed to the deactivation of catalysts. for the rh/ceo2 catalyst, tpo and co2 pulse experiment results indicated that the ch, species formed were more reactive than those formed on rh/al2o3 and rh/sio2. the unique rh-ceo2 interaction resulted in the creation of ceo2-x and oxygen vacancies after partial reduction of ceo2, which facilitated the co2 dissociation. as a result, the dissociated surface oxygen could readily react with ch, species, thereby inhibiting the carbon deposition over rh/ceo2. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, applied ; chemistry, physical ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | carbon-dioxide ; synthesis gas ; rhodium catalysts ; methane ; co2 ; deactivation ; oxidation ; pathways ; oxide ; ch4 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000250972600006 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140638]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Univ Beijing, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Rui,Liu Xuebin,Chen Yanxin,et al. Effect of metal-support interaction on coking resistance of Rh-based catalysts in CH4/CO2 reforming[J]. chinese journal of catalysis,2007,28(10):865-869. |
| APA | Wang Rui,Liu Xuebin,Chen Yanxin,Li Wenzhao,&Xu Hengyong.(2007).Effect of metal-support interaction on coking resistance of Rh-based catalysts in CH4/CO2 reforming.chinese journal of catalysis,28(10),865-869. |
| MLA | Wang Rui,et al."Effect of metal-support interaction on coking resistance of Rh-based catalysts in CH4/CO2 reforming".chinese journal of catalysis 28.10(2007):865-869. |
入库方式： OAI收割
来源：大连化学物理研究所
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