Synthesis of Pd/TiO2–C composite catalysts and investigation of its performance for the electrooxidation of formic acid

作者: Hansheng Wan , Qizhi Dong , Guiming Zhu , Gang Yu , Tianwu Yin

DOI: 10.1016/J.IJHYDENE.2015.08.081

关键词:

摘要: Abstract In this work, anatase-TiO2 is investigated as a catalyst support in Pd/TiO2–C composite to improve the electrocatalytic properties of Pd for formic acid oxidation reaction (FAOR). Pd/TiO2 has been synthesized by an impregnation-reduction method and then mixed with Vulcan XC-72R carbon black obtain composite. Transmission electron microscopy (TEM) images show nanoparticles (ca.3.5 nm average diameter) (1:1) were dispersed on surface TiO2 narrow particle size distribution. Electrochemical tests demonstrate significantly increased catalytic activity stability compared Pd/C FAOR. The proposed reasons these observations are excellent corrosion resistance synergistic effect nanoparticles. mass ratios C performance also discussed. best FAOR found when ratio 1:1. It can be interpreted effects conductivity reach balance at point.

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