| Preparation of Metal Particle Catalysts Wrapped in Organosilicon Compound via Metal Vapor Synthesis |
| |
| 作者姓名： | 黄唯平 吴世华 赵维君 白令君 张宝龙 王序昆 杨瑞华 |
| |
| 作者单位： | Department of Chemistry，Nankai University，Tianjin 300071，PRC，Department of Chemistry，Nankai University，Tianjin 300071，PRC，Department of Chemistry，Nankai University，Tianjin 300071，PRC，Department of Chemistry，Nankai University，Tianjin 300071，PRC，Department of Chemistry，Nankai University，Tianjin 300071，PRC，Department of Chemistry，Nankai University，Tianjin 300071，PRC，Department of Chemistry，Nankai University，Tianjin 300071，PRC |
| |
| 摘 要： | Three kinds of metal catalysts Ni/D_4, Ni-Mn/D_4, Ni-Mn-La/D_4, wrapped in organosilicon compound were prepared by metal vapor synthesis. Their feature was characterized with XRD, TEM, XPS, FMR and static magnetic measurement. The metal particle size in catalysts was less than 3.5 am. The results of XPS showed that the metals in the catalysts existed in zero and other valent state. Inner metal, as an organosilicon compound folded around the metal particle, was protected from oxidation. FMR and static magnetic measuremeat revealed that metal particles were spheroidal and of superparamagnetism. Of all the caralysts the catalytic activity of Ni-Mn-La/D_4 was the highest in hydrogenating furfuraldehyde into furfuralcohol.
|
Preparation of Metal Particle Catalysts Wrapped in Organosilicon Compound via Metal Vapor Synthesis |
| |
| HUANG Wei-Ping WU Shi-Hua ZHAO Wei-Jun BAI Ling-aun ZHANG Bao-Long WANG Xu-Kun and YANG Rui-Hua.Preparation of Metal Particle Catalysts Wrapped in Organosilicon Compound via Metal Vapor Synthesis[J].Science in China(Chemistry),1993(10). |
| |
| Authors: | HUANG Wei-Ping WU Shi-Hua ZHAO Wei-Jun BAI Ling-aun ZHANG Bao-Long WANG Xu-Kun and YANG Rui-Hua |
| |
| Abstract: | Three kinds of metal catalysts Ni/D_4, Ni-Mn/D_4, Ni-Mn-La/D_4, wrapped in organosilicon compound were prepared by metal vapor synthesis. Their feature was characterized with XRD, TEM, XPS, FMR and static magnetic measurement. The metal particle size in catalysts was less than 3.5 am. The results of XPS showed that the metals in the catalysts existed in zero and other valent state. Inner metal, as an organosilicon compound folded around the metal particle, was protected from oxidation. FMR and static magnetic measuremeat revealed that metal particles were spheroidal and of superparamagnetism. Of all the caralysts the catalytic activity of Ni-Mn-La/D_4 was the highest in hydrogenating furfuraldehyde into furfuralcohol. |
| |
| Keywords: | metal vapor synthesis superparamagnetism ferromagnetic resonance metal catalyst organosilicon compound |
| 本文献已被 CNKI 等数据库收录！ |
