期刊
NANO RESEARCH
卷 10, 期 3, 页码 1064-1077出版社
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-016-1367-4
关键词
noble metal; mesoporous; single crystal; hollow interior; electrocatalysis
类别
资金
- National Natural Science Foundation of China [51271135]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
- Fundamental Research Funds for the Central Universities
- Natural Science Foundation of Shanxi Province [2015JM5166]
- International Center for Dielectric Research, Xi'an Jiaotong University
- School of Science, Xi'an Jiaotong University
We demonstrate a facile hydrothermal one-pot synthesis method for producing single crystalline mesoporous PtPd bimetallic nanoparticles with a hollow interior and porous surface structure in the presence of Br- and I- ions. The formation process analysis indicated that the coexistence of Br- and I- ions is responsible for the formation of the novel bimetallic nanoparticles. The changes in the reduction potential of Pt and Pd metal ions achieved by the coordination with different halide ions resulted in the formation of hollow interiors as a galvanic reaction between Pd2+ and Pt4+ ions occurred. In addition, the size of the mesoporous PtPd nanoparticles can be well controlled by slightly changing the amount of I- ions used. The electrochemical tests indicated that the assynthesized single crystalline mesoporous PtPd hollow nanoparticles exhibited enhanced catalytic properties toward methanol and ethanol oxidation reactions as compared with the commercial Pt black and Pt/C materials.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据