Low-temperature hydrogenation of the C=O bond of propanal over Ni-Pt bimetallic catalysts: from model surfaces to supported catalysts
文献类型：期刊论文
| 作者 | Zheng, Renyang1; Humbert, Michael P.2; Zhu, Yuexiang1; Chen, Jingguang G.2 |
| 刊名 | CATALYSIS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2011 |
| 卷号 | 1期号:4页码:638-643 |
| ISSN号 | 2044-4753 |
| DOI | 10.1039/c1cy00066g |
| 英文摘要 | The hydrogenation of propanal is used as a probe reaction to correlate the activity of C=O bond hydrogenation over Ni-Pt bimetallic surfaces and catalysts. Density functional theory (DFT) calculations predict that propanal is more weakly bonded on the Pt-Ni-Pt(111) subsurface structure than on either Ni or Pt, suggesting a possible novel low-temperature hydrogenation pathway based on a previous trend predicted for C=C hydrogenation. Surface science studies using temperature programmed desorption (TPD) on Ni-modified polycrystalline Pt foil verify that different bimetallic surface structures exhibit distinct C=O hydrogenation activity, with the Pt-Ni-Pt subsurface structure being much more active for propanal hydrogenation. Furthermore, gamma-Al(2)O(3) supported Ni-Pt bimetallic catalysts have been prepared to extend the surface science studies to real world catalysis. In the gas phase hydrogenation of propanal, both batch and flow reactor studies show that Ni-Pt/gamma-Al(2)O(3) bimetallic catalysts exhibit enhanced C=O hydrogenation activity compared to the corresponding monometallic catalysts. The excellent correlation between theoretical predictions, surface science studies on model surfaces, and catalytic evaluation of supported catalysts demonstrates the feasibility to rationally design bimetallic catalysts with enhanced hydrogenation activity. |
| 语种 | 英语 |
| WOS记录号 | WOS:000294015400017 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/71757]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zheng, Renyang |
| 作者单位 | 1.Peking Univ, Beijing Natl Lab Mol Sci, State Key Lab Struct Chem Unstable & Stable Speci, Coll Chem & Mol Engn, Beijing 100871, Peoples R China 2.Univ Delaware, Ctr Catalyt Sci & Technol, Dept Chem Engn, Newark, DE 19716 USA |
| 推荐引用方式 GB/T 7714 | Zheng, Renyang,Humbert, Michael P.,Zhu, Yuexiang,et al. Low-temperature hydrogenation of the C=O bond of propanal over Ni-Pt bimetallic catalysts: from model surfaces to supported catalysts[J]. CATALYSIS SCIENCE & TECHNOLOGY,2011,1(4):638-643. |
| APA | Zheng, Renyang,Humbert, Michael P.,Zhu, Yuexiang,&Chen, Jingguang G..(2011).Low-temperature hydrogenation of the C=O bond of propanal over Ni-Pt bimetallic catalysts: from model surfaces to supported catalysts.CATALYSIS SCIENCE & TECHNOLOGY,1(4),638-643. |
| MLA | Zheng, Renyang,et al."Low-temperature hydrogenation of the C=O bond of propanal over Ni-Pt bimetallic catalysts: from model surfaces to supported catalysts".CATALYSIS SCIENCE & TECHNOLOGY 1.4(2011):638-643. |
入库方式： OAI收割
来源：化学研究所
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