Au-Cu alloy nanoparticles supported on silica gel as catalyst for CO oxidation: Effects of Au/Cu ratios
文献类型：期刊论文
| 作者 | Liu, Xiaoyan1,3; Wang, Aiqin1; Zhang, Tao1; Su, Dang-Sheng2; Mou, Chung-Yuan3 |
| 刊名 | catalysis today
 |
| 出版日期 | 2011-02-02 |
| 卷号 | 160期号:1页码:103-108 |
| 关键词 | Au-Cu alloy Gold Copper Nanoparticle CO oxidation PROX |
| 英文摘要 | au-cu bimetallic catalysts with au/cu ratios ranging from 3/1 to 20/1 were prepared on silica gel support by a two-step method. the catalysts were characterized by icp, xrd and tem. the results showed that, irrespective of au/cu ratios, all the bimetallic nanoparticles had significantly reduced particle sizes (3.0-3.6 nm) in comparison with monometallic gold catalysts (5.7 nm). both co oxidation and prox reactions were employed to evaluate the catalytic activities of au-cu bimetallic catalysts. for co oxidation, the alloy catalysts show non-monotonic temperature dependence showing a valley in the intermediate temperature range. the catalyst with au/cu ratio of 20/1 gave the highest activity at room temperature, but its activity showed the deepest valley with increasing the reaction temperature. on the other hand, the catalyst with au/cu ratio of 3/1 exhibited the best performance for prox reaction. for the au/cu ratios investigated, the bimetallic catalysts showed superior performance to monometallic gold catalysts, demonstrating the synergy between gold and copper. (c) 2010 elsevier b.v. all rights reserved. |
| 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] | gold catalysts ; deposition-precipitation ; mesoporous support ; nanoporous gold ; temperature ; platinum ; nanocatalysts ; chemistry ; clusters ; inert |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000286454100014 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/142536]  |
| 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.Max Planck Soc, Fritz Haber Inst, D-14195 Berlin, Germany 3.Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan |
| 推荐引用方式 GB/T 7714 | Liu, Xiaoyan,Wang, Aiqin,Zhang, Tao,et al. Au-Cu alloy nanoparticles supported on silica gel as catalyst for CO oxidation: Effects of Au/Cu ratios[J]. catalysis today,2011,160(1):103-108. |
| APA | Liu, Xiaoyan,Wang, Aiqin,Zhang, Tao,Su, Dang-Sheng,&Mou, Chung-Yuan.(2011).Au-Cu alloy nanoparticles supported on silica gel as catalyst for CO oxidation: Effects of Au/Cu ratios.catalysis today,160(1),103-108. |
| MLA | Liu, Xiaoyan,et al."Au-Cu alloy nanoparticles supported on silica gel as catalyst for CO oxidation: Effects of Au/Cu ratios".catalysis today 160.1(2011):103-108. |
入库方式： OAI收割
来源：大连化学物理研究所
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