Structure of PtnNi Nanoparticles Electrocatalysts Investigated by X-ray Absorption Spectroscopy
文献类型：期刊论文
| 作者 | Bao, Hongliang ; Li, Jiong ; Jiang, Luhua ; Shang, Mingfeng ; Zhang, Shuo ; Jiang, Zheng ; Wei, Xiangjun ; Huang, Yuying ; Sun, Gongquan ; Wang, Jian-Qiang |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2013 |
| 卷号 | 117期号:40页码:CONCATENATE(Sheet1!I326,-Sheet1!J326) |
| ISSN号 | 1932-7447; 1932-7455 |
| 英文摘要 | Carbon supported Pt-Ni nanoparticles (NPs) electrocatalysts with nominal Pt/Ni atomic ratios of 3:1, 2:1, and 1:1, denoted as Pt3Ni/C, Pt2Ni/C, and Pt1Ni/C, respectively, were obtained by a modified polyol process. The structure of PtnNi/C (n = 3, 2, I) electrocatalysts was studied by using an X-ray absorption spectroscopy technique combined with X-ray diffraction and transmission electron microscopy. Significantly, the NPs of Pt3Ni/C in air are demonstrated to have a quasi core-shell structure consisting of a core of metallic Pt surrounded by many small NiOx clusters. In contrast, both Pt2Ni/C and Pt1Ni/C are demonstrated to have an alloy structure with partial oxidation on the surface. Under the atmosphere of H-2 at 393 K, the PtnNi/C became the expected bimetallic alloy. At last, we discuss the effect of Ni amount on the structure of PtnNi/C and estimate their possible catalytic activity for methanol oxidation reaction. Our results further confirmed that the structure of Pt-Ni NPs can be influenced by Ni amount and this effect may be enlarged by environment effects. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000326366800025 |
| 公开日期 | 2014-06-13 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/13925]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Bao, Hongliang,Li, Jiong,Jiang, Luhua,et al. Structure of PtnNi Nanoparticles Electrocatalysts Investigated by X-ray Absorption Spectroscopy[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2013,117(40):CONCATENATE(Sheet1!I326,-Sheet1!J326). |
| APA | Bao, Hongliang.,Li, Jiong.,Jiang, Luhua.,Shang, Mingfeng.,Zhang, Shuo.,...&Wang, Jian-Qiang.(2013).Structure of PtnNi Nanoparticles Electrocatalysts Investigated by X-ray Absorption Spectroscopy.JOURNAL OF PHYSICAL CHEMISTRY C,117(40),CONCATENATE(Sheet1!I326,-Sheet1!J326). |
| MLA | Bao, Hongliang,et al."Structure of PtnNi Nanoparticles Electrocatalysts Investigated by X-ray Absorption Spectroscopy".JOURNAL OF PHYSICAL CHEMISTRY C 117.40(2013):CONCATENATE(Sheet1!I326,-Sheet1!J326). |
入库方式： OAI收割
来源：上海应用物理研究所
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