Formation of AgPt Alloy Nanoislands via Chemical Etching with Tunable Optical and Catalytic Properties
文献类型：期刊论文
| 作者 | He, WW ; Wu, XC ; Liu, JB ; Zhang, K ; Chu, WG ; Feng, LL ; Hu, XN ; Zhou, WY ; Xie, SS |
| 刊名 | LANGMUIR
 |
| 出版日期 | 2010 |
| 卷号 | 26期号:6页码:4443 |
| 关键词 | NANOROD-SEEDED GROWTH GOLD NANORODS METHANOL ELECTROOXIDATION OXYGEN REDUCTION SILVER SURFACE NANOSTRUCTURES NANOPARTICLES NANOCRYSTALS ELECTROCATALYST |
| ISSN号 | 0743-7463 |
| 通讯作者 | Wu, XC: Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China. |
| 中文摘要 | An effective way is developed to fabricate AgPt alloy nanoislands oil gold nanorods based on the galvanic replacement between Ag and PtCl(4)(2-) in the presence of cetyltrimethylammonium bromide (CTAB). The optical and catalytic properties benefit from the porous structure composed of AgPt nanoislands. A large red shift (265 nm) after etching is observed for longitudinal surface plasmon resonance (SPR) in comparison with Au@Pt0.1@Ag. Alloy compositions ill bulk miscibility gap can be obtained and finely tuned from Ag(0.56)Pt(0.44) to Ag(0.38)Pt(0.62). A unique composition dependence is found for both electrocatalytic oxidation of methanol and catalytic oxidation of o-phenylenediamine (OPD) by hydrogen peroxide. In both systems, the highest catalytic activity is achieved at the alloy composition of Pt(0.62)Ag(0.38). Proper alloying with Ag not only improves the CO poisoning of Pt catalyst but also enhances the catalytic activity greatly. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [20773032]; "973" National Key Basic Research Program of China [2006CB705600, 2006CB932602] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/38382]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | He, WW,Wu, XC,Liu, JB,et al. Formation of AgPt Alloy Nanoislands via Chemical Etching with Tunable Optical and Catalytic Properties[J]. LANGMUIR,2010,26(6):4443. |
| APA | He, WW.,Wu, XC.,Liu, JB.,Zhang, K.,Chu, WG.,...&Xie, SS.(2010).Formation of AgPt Alloy Nanoislands via Chemical Etching with Tunable Optical and Catalytic Properties.LANGMUIR,26(6),4443. |
| MLA | He, WW,et al."Formation of AgPt Alloy Nanoislands via Chemical Etching with Tunable Optical and Catalytic Properties".LANGMUIR 26.6(2010):4443. |
入库方式： OAI收割
来源：物理研究所
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