Catalytic properties of silica/silver nanocomposites
文献类型：期刊论文
| 作者 | Zhai HJ ; Sun DW ; Wang HS |
| 刊名 | journal of nanoscience and nanotechnology
 |
| 出版日期 | 2006 |
| 卷号 | 6期号:7页码:1968-1972 |
| 关键词 | PHYSICOCHEMICAL PROPERTIES SILICA SPHERES SILVER NANOPARTICLES PARTICLES GOLD CLUSTERS HYDROGENATION METAL |
| ISSN号 | 1533-4880 |
| 通讯作者 | wang hs |
| 中文摘要 | the catalytic properties of silver nanoparticles supported on silica and the relation between catalytic activity of silver particles and the support (silica) size are investigated in the present article. the silver nanoparticles with 4 nm diameters were synthesized and were attached to silica spheres with sizes of 40, 78, 105 nm, respectively. the reduction of rhodamine 6g (r6g) by nabh4 was designed by using the sio2/ag core-shell nanocomposites as catalysts. the experimental results demonstrated that the catalytic activity of silica/silver nanoparticles depends on not only the concentration of catalysts (silver) but also the support silica size. silver particles supported on small sio2 spheres (similar to 40 nm) show high catalytic activity. moreover, by making a comparison between the uv-vis spectra of the catalyst before and after the catalytic reaction, we found that the position of surface plasma resonance (spr) peak of ag nanoparticles changes little. the above results suggested that the size and morphology of silver particles were probably kept unchanged after the reduction of r6g and also implied that the catalytic activity of silver particles was hardly lost during the catalytic reaction. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000239542900010 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/16419]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhai HJ,Sun DW,Wang HS. Catalytic properties of silica/silver nanocomposites[J]. journal of nanoscience and nanotechnology,2006,6(7):1968-1972. |
| APA | Zhai HJ,Sun DW,&Wang HS.(2006).Catalytic properties of silica/silver nanocomposites.journal of nanoscience and nanotechnology,6(7),1968-1972. |
| MLA | Zhai HJ,et al."Catalytic properties of silica/silver nanocomposites".journal of nanoscience and nanotechnology 6.7(2006):1968-1972. |
入库方式： OAI收割
来源：长春应用化学研究所
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