Influence of zirconia crystal phase on the catalytic performance of Au/ZrO2 catalysts for low-temperature water gas shift reaction
文献类型：期刊论文
| 作者 | Li, Juan; Chen, Junli; Song, Wei; Liu, Junlong; Shen, Wenjie |
| 刊名 | applied catalysis a-general
 |
| 出版日期 | 2008 |
| 卷号 | 334期号:1-2页码:321-329 |
| 关键词 | Au/ZrO2 crystal phase low-temperature water gas shift FTIR |
| 产权排序 | 1;1 |
| 通讯作者 | 申文杰 |
| 英文摘要 | the influence of crystal phase of zirconia on the performance of au/zro2 catalysts for low temperature water gas shift reaction was investigated. au/zro2 catalysts with pure tetragonal and monoclinic phases of zro2 were prepared by the deposition-precipitation method with similar gold loading and dispersion. it was found that the au/m-zro2 catalyst showed much higher activity than that of the au/t-zro2 catalyst, which could be attributed to the higher co adsorption capacity of the au/m-zro2 catalyst. the chemical state of gold that was strongly related to the pretreatment atmosphere also played an essential role in determining the catalytic activity for water gas shift reaction. hydrogen and/or helium pretreated samples only contained au-0 species and exhibited higher activity than that of the sample pretreated with oxygen-containing atmosphere which resulted in the co-existence of au-0 and au+ species. ftir study further revealed that the formate species formed by the reaction of the adsorbed co on gold nanoparticle with the hydroxyl groups on the surface of m-zro2 acted as the most important intermediates for the water gas shift reaction. (c) 2007 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; life sciences & biomedicine |
| 类目[WOS] | chemistry, physical ; environmental sciences |
| 研究领域[WOS] | chemistry ; environmental sciences & ecology |
| 关键词[WOS] | supported au catalysts ; co oxidation ; pretreatment conditions ; gold ; ftir ; hydrogen ; adsorption ; sites ; 1,3-butadiene ; au/fe2o3 |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000252564800038 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/99871]  |
| 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, Juan,Chen, Junli,Song, Wei,et al. Influence of zirconia crystal phase on the catalytic performance of Au/ZrO2 catalysts for low-temperature water gas shift reaction[J]. applied catalysis a-general,2008,334(1-2):321-329. |
| APA | Li, Juan,Chen, Junli,Song, Wei,Liu, Junlong,&Shen, Wenjie.(2008).Influence of zirconia crystal phase on the catalytic performance of Au/ZrO2 catalysts for low-temperature water gas shift reaction.applied catalysis a-general,334(1-2),321-329. |
| MLA | Li, Juan,et al."Influence of zirconia crystal phase on the catalytic performance of Au/ZrO2 catalysts for low-temperature water gas shift reaction".applied catalysis a-general 334.1-2(2008):321-329. |
入库方式： OAI收割
来源：大连化学物理研究所
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