Influence of chemical states of Au on CO oxidation over Au/CoCeOx catalyst
文献类型：期刊论文
| 作者 | Ta Na1; Zhang Milin1; Li Juan2; Li Huaju2; Shen Wenjie2 |
| 刊名 | chinese journal of catalysis
 |
| 出版日期 | 2008-08-01 |
| 卷号 | 29期号:8页码:777-782 |
| 关键词 | cobalt oxide ceria composite oxide gold chemical state carbon monoxide low temperature oxidation |
| 英文摘要 | au/coceox catalysts were prepared by i deposition-precipitation method. au chemical states were controlled by varying the temperature of pretreatment in an oxygen-containing atmosphere. the catalysts were characterized by powder x-ray diffraction, high-resolution transmission electron microscopy, temperature-programmed reduction, and x-ray photoelectron spectroscopy. the catalytic performance for co oxidation was investigated at ambient temperature. it was found that the conversion of co increased with increasing amount of au+ in the catalyst, and thus the cationic gold (au+) was considered the main active species. addition of water vapor to the feed gas promoted co conversion to some degree, but the catalytic performance decreased rapidly due to the disproportionation of au+ to au3+ and au-0 particularly for the catalyst that contained relatively large amounts of au+ species. |
| 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] | pretreatment conditions ; temperature oxidation ; carbon-monoxide ; nanoparticles ; performance ; au/tio2 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000259341000019 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140935]  |
| 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.Harbin Engn Univ, Coll Mat Sci & Chem Engn, Harbin 150001, Heilongjiang, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ta Na,Zhang Milin,Li Juan,et al. Influence of chemical states of Au on CO oxidation over Au/CoCeOx catalyst[J]. chinese journal of catalysis,2008,29(8):777-782. |
| APA | Ta Na,Zhang Milin,Li Juan,Li Huaju,&Shen Wenjie.(2008).Influence of chemical states of Au on CO oxidation over Au/CoCeOx catalyst.chinese journal of catalysis,29(8),777-782. |
| MLA | Ta Na,et al."Influence of chemical states of Au on CO oxidation over Au/CoCeOx catalyst".chinese journal of catalysis 29.8(2008):777-782. |
入库方式： OAI收割
来源：大连化学物理研究所
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