Study on Carbon Supported Pd Catalysts Modified by Phosphomolybdic Acid for H₂O₂ Electrocatalytic Reduction

Authors

Li-mei SUN, College of Chemistry and Chemical Engineering, Inner Mongolia University for the Nationalities, TongLiao 028000, Inner Mongolia, China;Follow
Cheng ZHANG, College of Chemistry and Chemical Engineering, Inner Mongolia University for the Nationalities, TongLiao 028000, Inner Mongolia, China;
Ying-rong BAO, College of Chemistry and Chemical Engineering, Inner Mongolia University for the Nationalities, TongLiao 028000, Inner Mongolia, China;
Hong-Xia LI, College of Chemistry and Chemical Engineering, Inner Mongolia University for the Nationalities, TongLiao 028000, Inner Mongolia, China;

Corresponding Author

Li-mei SUN(sunlimei2000@126.com)

Abstract

The Pd/C catalyst was prepared with the chemical reduction method, and phosphomolybdic acid (PMA) was modified on the Pd/C catalyst using the dipping method. The compositions and structures of the Pd/C and Pd/C modified by phosphomolybdic acid (PMA-Pd/C) catalysts were characterized with X-ray diffraction and Fourier Transform infrared spectroscopy analyses. The electrocatalytic activity and stability of the catalysts for the reduction of hydrogen peroxide (H₂O₂) were studied using cyclic voltammetry and chronoamperometry. The results showed that the phosphomolybdic acid was tightly fixed on the surface of Pd/C catalyst through the chemical interaction. The eletrocatalytic activity of the PMA-Pd/C on H₂O₂ reduction is higher than that of the Pd/C catalyst.

Graphical Abstract

Keywords

phosphomolybdic acid, Pd/C catalyst, hydrogen peroxide electroreduction, fuel cell

DOI Link

https://doi.org/10.13208/j.electrochem.121110

Publication Date

2014-02-25

Online Available Date

2014-02-24

Revised Date

2013-07-01

Received Date

2012-11-10

Recommended Citation

Li-mei SUN, Cheng ZHANG, Ying-rong BAO, Hong-Xia LI. Study on Carbon Supported Pd Catalysts Modified by Phosphomolybdic Acid for H₂O₂ Electrocatalytic Reduction[J]. Journal of Electrochemistry, 2014 , 20(1): 56-59.
DOI: 10.13208/j.electrochem.121110
Available at: https://jelectrochem.xmu.edu.cn/journal/vol20/iss1/10

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