Au/ZrO2 catalysts for low-temperature water gas shift reaction: Influence of particle sizes
文献类型：期刊论文
| 作者 | Li, Juan; Ta, Na; Song, Wei; Zhan, Ensheng; Shen, Wenjie |
| 刊名 | gold bulletin
 |
| 出版日期 | 2009 |
| 卷号 | 42期号:1页码:48-60 |
| 关键词 | Au/ZrO2 Particle size Contact boundary Water gas shift Low-temperature |
| 产权排序 | 1;1 |
| 通讯作者 | 申文杰 |
| 英文摘要 | the size effects of au and zro2 particles on the structural property and the catalytic performance of au/zro2 catalysts for the water gas shift reaction were extensively investigated. it was found that the au-zro2 contact boundaries played essential roles in determining the catalytic reactivity. by keeping the size of au particle to be similar to 3 nm, the increase in the particle size of zro2 from similar to 7 nm to similar to 55 nm caused significant decrease in the reaction rate. when the particle size of zro2 was fixed at similar to 20 nm, the conversion of co decreased greatly with increasing the size of gold particle from 2.9 to 6.2 nm. ir spectroscopy and kinetic study revealed that the water gas shift reaction occurred at the au-zro2 contact boundaries, where co is adsorbed on the au species and h2o is activated on the surface of zro2 through the formation of formate species, acting as key reaction intermediates. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, inorganic & nuclear ; chemistry, physical ; materials science, multidisciplinary |
| 研究领域[WOS] | chemistry ; materials science |
| 关键词[WOS] | co oxidation ; gold catalysts ; au/ceo2 catalysts ; pretreatment conditions ; au-ceo2 catalysts ; supported au ; zirconia ; hydrogen ; au/tio2 ; ceria |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000265079200007 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/101623]  |
| 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,Ta, Na,Song, Wei,et al. Au/ZrO2 catalysts for low-temperature water gas shift reaction: Influence of particle sizes[J]. gold bulletin,2009,42(1):48-60. |
| APA | Li, Juan,Ta, Na,Song, Wei,Zhan, Ensheng,&Shen, Wenjie.(2009).Au/ZrO2 catalysts for low-temperature water gas shift reaction: Influence of particle sizes.gold bulletin,42(1),48-60. |
| MLA | Li, Juan,et al."Au/ZrO2 catalysts for low-temperature water gas shift reaction: Influence of particle sizes".gold bulletin 42.1(2009):48-60. |
入库方式： OAI收割
来源：大连化学物理研究所
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