Microcalorimetric and FT-IR Studies of CO Adsorption on Supported Iridium Catalysts
文献类型：期刊论文
| 作者 | Wang Xingtang1,2; Li Lin1; Huang Yanqiang1; Wang Xiaodong1; Zhang Tao1 |
| 刊名 | chinese journal of catalysis
 |
| 出版日期 | 2008-12-01 |
| 卷号 | 29期号:12页码:1231-1236 |
| 关键词 | temperature-programmed reduction microcalorimetry infrared spectroscopy iridium alumina silica |
| 英文摘要 | ir/al(2)o(3) and ir/sio(2) with ir loadings of 2%, 10%. and 20% were investigated by h(2) temperature-programmed reduction, microcalorimetry, and ft-ir. for ir/al(2)o(3), there existed both ir(0) and ir(delta+) species. a major carbonyl band, varied with the average particle size, was due to co linearly adsorbed on ir(0), while an intense pair of bands observed at 2 080 and 2 004 cm (1) was assigned to gem-dicarbonyl species adsorbed on ir(delta+). the adsorption heat could be the average heat produced by the formation of both gem-dicarbonyl and linear species. the relative intensities of the ir(0)-co species were enhanced as the ir loading with the reduction temperature increased. which led to an increase in the adsorption heat. for ir/sio(2) several bands ranged in 2 100 - 2 000 cm (1) were identified and attributed to the linearly bonded co to larger and smaller ir(0) clusters. as a result, the adsorption heat maintained almost constant though the loading and the reduction temperature increased. |
| 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] | hydrazine decomposition catalyst ; carbon-monoxide ; structural-characterization ; toluene hydrogenation ; excess oxygen ; no reduction ; alumina ; gamma-al2o3 ; clusters ; spectroscopy |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000262385100009 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/141048]  |
| 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 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Xingtang,Li Lin,Huang Yanqiang,et al. Microcalorimetric and FT-IR Studies of CO Adsorption on Supported Iridium Catalysts[J]. chinese journal of catalysis,2008,29(12):1231-1236. |
| APA | Wang Xingtang,Li Lin,Huang Yanqiang,Wang Xiaodong,&Zhang Tao.(2008).Microcalorimetric and FT-IR Studies of CO Adsorption on Supported Iridium Catalysts.chinese journal of catalysis,29(12),1231-1236. |
| MLA | Wang Xingtang,et al."Microcalorimetric and FT-IR Studies of CO Adsorption on Supported Iridium Catalysts".chinese journal of catalysis 29.12(2008):1231-1236. |
入库方式： OAI收割
来源：大连化学物理研究所
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