Highly dispersed silica-supported copper nanoparticles prepared by precipitation-gel method: a simple but efficient and stable catalyst for glycerol hydrogenolysis
文献类型：期刊论文
| 作者 | Huang, Zhiwei1,2; Cui, Fang1; Kang, Haixiao1; Chen, Jing1; Zhang, Xinzhi1; Xia, Chungu1 |
| 刊名 | Chemistry of materials
 |
| 出版日期 | 2008-08-12 |
| 卷号 | 20期号:15页码:5090-5099 |
| ISSN号 | 0897-4756 |
| DOI | 10.1021/cm8006233 |
| 通讯作者 | Chen, jing(chenj@lzb.ac.cn) |
| 英文摘要 | Highly dispersed copper nanoparticles supported on silica were successfully prepared by a simple and convenient precipitation-gel technique, and their physicochemical properties and activity were compared to those of a catalyst prepared by the conventional impregnation method. as a consequence of the preparation method, the texture (bet), dispersion (dissociative n(2)o adsorption), morphology (tem), reduction behavior (tpr, xrd), state of copper species (xps), and catalytic performance (glycerol hydrogenolysis) differ between samples. both samples showed high selectivity (>98%) toward 1,2-propanediol in glycerol reaction. because of a much smaller particle size, a higher dispersion of copper species with a strong metal-support interaction, and more resistance to sintering, the cuo/sio(2) catalyst prepared by precipitation-gel method presented a much higher activity and remarkably better long-term stability in glycerol reaction than did the catalyst prepared by impregnation method. the catalytic behavior of calcined and reduced samples and the structure changes of these samples after reaction allow the understanding of the stability toward sintering as well as the possible mechanism of the reaction. |
| WOS关键词 | CU/SIO2 CATALYSTS ; OXIDE CATALYSTS ; CARBON-MONOXIDE ; SELECTIVE HYDROGENOLYSIS ; SURFACE-STRUCTURE ; PROPYLENE-GLYCOL ; METHANOL ; DEHYDROGENATION ; CONVERSION ; OXIDATION |
| WOS研究方向 | Chemistry ; Materials Science |
| WOS类目 | Chemistry, Physical ; Materials Science, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000258225500040 |
| 出版者 | AMER CHEMICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2390826 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Chen, Jing |
| 作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Zhiwei,Cui, Fang,Kang, Haixiao,et al. Highly dispersed silica-supported copper nanoparticles prepared by precipitation-gel method: a simple but efficient and stable catalyst for glycerol hydrogenolysis[J]. Chemistry of materials,2008,20(15):5090-5099. |
| APA | Huang, Zhiwei,Cui, Fang,Kang, Haixiao,Chen, Jing,Zhang, Xinzhi,&Xia, Chungu.(2008).Highly dispersed silica-supported copper nanoparticles prepared by precipitation-gel method: a simple but efficient and stable catalyst for glycerol hydrogenolysis.Chemistry of materials,20(15),5090-5099. |
| MLA | Huang, Zhiwei,et al."Highly dispersed silica-supported copper nanoparticles prepared by precipitation-gel method: a simple but efficient and stable catalyst for glycerol hydrogenolysis".Chemistry of materials 20.15(2008):5090-5099. |
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来源：中国科学院大学
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