Origin of the high activity of Au/FeOx for low-temperature CO oxidation: Direct evidence for a redox mechanism
文献类型：期刊论文
| 作者 | Li, Lin; Wang, Aiqin; Qiao, Botao; Lin, Jian; Huang, Yanqiang; Wang, Xiaodong; Zhang, Tao |
| 刊名 | journal of catalysis
 |
| 出版日期 | 2013-03-01 |
| 卷号 | 299页码:90-100 |
| 关键词 | Gold Iron oxide Au/FeOx CO oxidation FT-IR Raman Microcalorimetry Redox |
| 英文摘要 | feox-supported gold nanocatalyst is one of the most active catalysts for low-temperature co oxidation. however, the origin of the high activity is still in debate. in this work, using a combination of surface-sensitive in situ ft-ir, raman spectroscopy, and microcalorimetry, we provide unambiguous evidence that the surface lattice oxygen of the feox support participates directly in the low-temperature co oxidation, and the reaction proceeds mainly through a redox mechanism. both the presence of gold and the ferrihydrite nature of the feox support promote the redox activity greatly. calcination treatment has a detrimental effect on the redox activity of the au/feox, which in turn decreases greatly the activity for low-temperature co oxidation. the gold-assisted redox mechanism was also extended to other metal-supported feox catalysts, demonstrating the key role of the feox support in catalyzing the co oxidation reaction. (c) 2012 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] | supported gold catalysts ; gold/iron-oxide catalysts ; in-situ drifts ; carbon-monoxide ; ft-ir ; au/tio2 catalyst ; reactive oxygen ; nanoparticles ; au ; clusters |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000316774900009 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/137855]  |
| 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 | Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Lin,Wang, Aiqin,Qiao, Botao,et al. Origin of the high activity of Au/FeOx for low-temperature CO oxidation: Direct evidence for a redox mechanism[J]. journal of catalysis,2013,299:90-100. |
| APA | Li, Lin.,Wang, Aiqin.,Qiao, Botao.,Lin, Jian.,Huang, Yanqiang.,...&Zhang, Tao.(2013).Origin of the high activity of Au/FeOx for low-temperature CO oxidation: Direct evidence for a redox mechanism.journal of catalysis,299,90-100. |
| MLA | Li, Lin,et al."Origin of the high activity of Au/FeOx for low-temperature CO oxidation: Direct evidence for a redox mechanism".journal of catalysis 299(2013):90-100. |
入库方式： OAI收割
来源：大连化学物理研究所
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