Citation: GUO Sheng-da, HU Xian-chao, YANG Jian-gao, CHEN Hao, ZHOU Yang. Palladium nanoparticles supported on hollow mesoporous tungsten carbide microsphere as electrocatalyst for formic acid oxidation[J]. Journal of Fuel Chemistry and Technology, ;2016, 44(6): 698-702. shu

Palladium nanoparticles supported on hollow mesoporous tungsten carbide microsphere as electrocatalyst for formic acid oxidation

1.
Institute of Engineering and Research, Jiangxi University of Science and Technology, Ganzhou 341000, China
2.
Research Center of Analysis and Measurement, Zhejiang University of Technology, Hangzhou 310032, China
3.
Metallurgical and Chemical Engineering Institute, Jiangxi University of Science and Technology, Ganzhou 341000, China

Corresponding author: ZHOU Yang, yangzhou1998@126.com
Received Date: 20 November 2015
Revised Date: 25 February 2016

Fund Project: Jiangxi Natural Science Foundation of China 20151BAB213011and Key Project of Jiangxi University of Science and Technology NSFJ2015-K18Education Department Project Fund of Jiangxi Province GJJ150665, GJJ150648The project was supported by the National Natural Science Foundation of China 51174101, 51464013和51404110

Figures(5)

Hollow tungsten carbide and cobalt spheres (HTCCS) with cobalt concentration of 6% were prepared by spray conversion and reduction carbonization methods. The HTCCS with diameters of about 8-18μm were covered with 0.3-1.0μm microporous. The Pd/WC catalyst was prepared through the replacement reaction between Co nanoparticles on the surface of HTCCS and PdCl₄. The electro-catalytic performances for formic acid electro-oxidation were investigated by cyclic voltammetry and chronoamperometry. It exhibited the low onset potential, excellent catalytic activity and stability compared with Pd/C due to the larger electrochemical surface area (ECSA) and the synergistic effect between Pd and WC.
- direct formic acid fuel cell,
- formic acid oxidation,
- WC-Co composite spheres,
- electro-catalyst,
- mesoporous materials
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沈阳化工大学材料科学与工程学院沈阳 110142