Preparation of hollow PtCu nanoparticles as high-performance electrocatalysts for oxygen reduction reaction in the absence of a surfactant
文献类型：期刊论文
| 作者 | Yi, Baolian1; Cao, Longsheng1,2; Zhang, Geng3; Lu, Wangting4; Qin, Xiaoping1; Shao, Zhigang1 |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2016 |
| 卷号 | 6期号:46页码:39993-40001 |
| ISSN号 | 2046-2069 |
| DOI | 10.1039/c6ra04619c |
| 文献子类 | Article |
| 英文摘要 | Hollow PtCu nanoparticles of about 6.9 nm supported on Vulcan XC-72 were synthesized by a facile method in the absence of a surfactant. The hollow structure was evident in TEM, HRTEM and HAADF-STEM images. The lattice contraction of specific PtCu nanoparticles was directly observed with the aid of HRTEM; furthermore, the lattice compression of the whole PtCu sample was examined by XRD. As surface sensitive measurements, XPS and CV demonstrated that the PtCu nanoparticle was covered by a Pt skin with subsurface PtCu alloy. Based on a half-cell test, the PtCu/C electrocatalysts displayed impressive ORR performance compared with the state-of-the-art Pt/C (JM). The enhanced ORR performance was attributed to the reduced adsorption strength of OHads on the surface of the PtCu nanostructures, resulting from the hollow-induced lattice compression and subsurface alloy effect. In addition, the hollow PtCu nanostructure was confirmed to be stable by two facts: (i) the hollow structure was still visible and the particle size change of PtCu was not apparent and (ii) the area-specific activity and mass activity of PtCu didn't decrease greatly after an accelerated degradation test. |
| WOS关键词 | ELECTRO-CATALYTIC ACTIVITY ; MEMBRANE FUEL-CELLS ; CORE-SHELL ; CARBON NANOTUBES ; PLATINUM NANOPARTICLES ; ENHANCED ACTIVITY ; SPHERES ; ALLOY ; NANOCATALYSTS ; NANOCRYSTALS |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000374974300057 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/170814]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Shao, Zhigang |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Syst & Engn Grp, 457 Zhongshan Rd, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 3.Huazhong Agr Univ, Coll Sci, Dept Chem, Wuhan 430070, Peoples R China 4.Jianghan Univ, Inst Interdisciplinary Res, Wuhan 430056, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yi, Baolian,Cao, Longsheng,Zhang, Geng,et al. Preparation of hollow PtCu nanoparticles as high-performance electrocatalysts for oxygen reduction reaction in the absence of a surfactant[J]. RSC ADVANCES,2016,6(46):39993-40001. |
| APA | Yi, Baolian,Cao, Longsheng,Zhang, Geng,Lu, Wangting,Qin, Xiaoping,&Shao, Zhigang.(2016).Preparation of hollow PtCu nanoparticles as high-performance electrocatalysts for oxygen reduction reaction in the absence of a surfactant.RSC ADVANCES,6(46),39993-40001. |
| MLA | Yi, Baolian,et al."Preparation of hollow PtCu nanoparticles as high-performance electrocatalysts for oxygen reduction reaction in the absence of a surfactant".RSC ADVANCES 6.46(2016):39993-40001. |
入库方式： OAI收割
来源：大连化学物理研究所
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