期刊
NANOTECHNOLOGY
卷 25, 期 19, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/25/19/195702
关键词
nanodendrites; methanol oxidation; Pt/Pd
资金
- National Natural Science Foundation of China [21373006]
- Key Project of Chinese Ministry of Education [211064]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- New Faculty Start Foundation of Soochow University [Q410900413]
The demand for clean and energy-efficient fuel cell systems requires electrocatalysts with greater activity and stability. Here, we report a facile wet-chemical approach for the synthesis of high-quality three-dimensional (3D) Pt/Pd bimetallic nanodendrites. The simple and unique process developed here used oleylamine as a reducing agent, and hydrogen gas to control the morphology. The as-prepared Pt/Pd nanodendrites were characterized by transmission electron microscopy, x-ray diffraction and energy dispersive x-ray spectroscopy, cyclic voltammetry, linear sweep voltammetry and chronoamperometry. The nanodendrites showed superior electrocatalytic activity (609.565 mA mg(-1) Pt) for the oxidation of methanol compared with Pt nanoparticle electrocatalysts. This method could provide a general approach for the morphology-controlled synthesis of bimetallic Pt-based nanocatalysts, which are promising materials for applications in fuel cells.
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