Remarkable effects of hydroxyl species on low-temperature CO (preferential) oxidation over Ir/Fe(OH)(x) catalyst
文献类型：期刊论文
| 作者 | Lin, Jian1; Qiao, Botao1; Li, Lin1; Guan, Hongling1,2; Ruan, Chongyan1,2; Wang, Aiqin1; Zhang, Wansheng1; Wang, Xiaodong1; Zhang, Tao1 |
| 刊名 | journal of catalysis
 |
| 出版日期 | 2014-11-01 |
| 卷号 | 319页码:142-149 |
| 关键词 | Catalysis CO oxidation Iridium Ferrous iron Hydroxyl species |
| 英文摘要 | fe(oh)(x)-supported noble metal catalysts exhibited good performance in low-temperature co oxidation or co preferential oxidation (prox), which usually resulted from the high reducibility of fe(oh)(x,) however, we found here that the use of fe(oh) x promoted the formation of oh species during prox over ir/fe(oh)(x) catalysts, which not only greatly lowered the temperature for 100% co conversion, even to room temperature, but also improved the stability. these oh species originated from the reaction between the adsorbed o on fe2+ sites and the adsorbed h on ir sites. they changed the reaction route for the oxidation of co through adsorbed co and oh with lower activation energy (ea: similar to 5.2 kj/mol) rather than through adsorbed co and o (ea: similar to 15.4 kj/mol). with further time-resolved mass spectroscopy and diffuse reflectance infrared spectroscopy, the oh species, prior to the adsorbed 0, were proved to react with co directly. (c) 2014 elsevier inc. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | carbon-monoxide ; selective oxidation ; hydrogen prox ; gold catalysts ; platinum nanoparticles ; h-2-rich stream ; metal-oxides ; support ; adsorption ; h-2 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000344437400015 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/145648]  |
| 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, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lin, Jian,Qiao, Botao,Li, Lin,et al. Remarkable effects of hydroxyl species on low-temperature CO (preferential) oxidation over Ir/Fe(OH)(x) catalyst[J]. journal of catalysis,2014,319:142-149. |
| APA | Lin, Jian.,Qiao, Botao.,Li, Lin.,Guan, Hongling.,Ruan, Chongyan.,...&Zhang, Tao.(2014).Remarkable effects of hydroxyl species on low-temperature CO (preferential) oxidation over Ir/Fe(OH)(x) catalyst.journal of catalysis,319,142-149. |
| MLA | Lin, Jian,et al."Remarkable effects of hydroxyl species on low-temperature CO (preferential) oxidation over Ir/Fe(OH)(x) catalyst".journal of catalysis 319(2014):142-149. |
入库方式： OAI收割
来源：大连化学物理研究所
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