Electrochemical Performance of the Pd/C Catalyst Synthesized by Polyol Process

Apolyol process is employed to synthesize Pd nanoparticles supported on carbon (Pd/C), for developing an electrocatalyst with excellent performance for methanol oxidation. The results show that this method has a high efficiency for the Pd nanoparticles depositing on the carbon support. Moreover, the...

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Bibliographic Details
Published in:International journal of electrochemical science 2019-08, Vol.14 (8), p.7871-7883
Main Authors: Yu, Shaofeng, Han, Qiong, Yang, Yingjia, Ma, Xuli, Gao, Lizhen, Yan, Shaohui, Wu, Yucheng, Lu, Liquan
Format: Article
Language:English
Subjects:
Direct methanol fuel cells (DMFCs)
Electrocatalysis
Methanol electrooxidation
Nanomaterials
Pd nanoparticles
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Summary:Apolyol process is employed to synthesize Pd nanoparticles supported on carbon (Pd/C), for developing an electrocatalyst with excellent performance for methanol oxidation. The results show that this method has a high efficiency for the Pd nanoparticles depositing on the carbon support. Moreover, the average diameter of the Pd nanoparticles decreases with the amount of KOH solution employed during the catalyst synthesis. The highest electrochemical activity of the Pd/C catalyst for the methanol oxidation in 0.1 M KOH solution with 1.0 M methanol at 25 oC reaches to 447.4 mA mg-1 Pd. The activity difference between the Pd/C catalysts prepared at 200 (447.4 mA mg-1 Pd) and 180 oC (435.8 mA mg-1 Pd) for the methanol electrooxidation is very small, showing that the polyol process is suitable for the preparation of the Pd/C.
ISSN:1452-3981
1452-3981
DOI:10.20964/2019.08.48