Acta Phys. -Chim. Sin. ›› 2014, Vol. 30 ›› Issue (1): 83-87.doi: 10.3866/PKU.WHXB201311012

• ELECTROCHEMISTRY AND NEW ENERGY • Previous Articles     Next Articles

Palladium Nanoparticles Supported on Hollow Mesoporous Tungsten Trioxide Microsphere as Electrocatalyst for Formic Acid Oxidation

ZHOU Yang1,2, HU Xian-Chao3, LI Li-Qing2, CHEN Xi-Rong2   

  1. 1 Engineering Research Center of High-Efficiency Development and Application Technology of Tungsten Resources, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P. R. China;
    2 Metallurgical and Chemical Engineering Institute, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P. R. China;
    3 Research Center of Analysis and Measurement, Zhejiang University of Technology, Hangzhou 310032, P. R. China
  • Received:2013-08-11 Revised:2013-10-29 Published:2014-01-01
  • Contact: HU Xian-Chao E-mail:huxc@zjut.edu.cn
  • Supported by:

    The project was supported by the Postdoctoral Project Fund of Jiangxi University of Science and Technology, China, Zhejiang Province Science and Technology Department, China (2013C37104), and Natural Science Foundation of Jiangxi Province, China (20132BAB213009).

Abstract:

Hollow mesoporous tungsten trioxide microsphere (HMTTS) was synthesized by spay drying method and employed as the support material for Pd catalyst. The catalyst was characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The Pd nanoparticles had a face-centered cubic crystal structure and were well dispersed on the external walls of HMTTS. The as-prepared Pd/HMTTS catalyst exhibits higher electrocatalytic activity and good stability during formic acid oxidation in comparison to Pd/WO3 catalyst. The enhanced catalytic performance is attributed to the unique structure and surface properties of HMTTS and the hydrogen spillover effect which greatly accelerates the direct dehydrogenation of formic acid on palladium.

Key words: Direct formic acid fuel cell, Formic acid oxidation, Tungsten trioxide, Electrocatalyst, Mesoporous material

MSC2000: 

  • O646