Abstract
The electro-oxidation of methanol in alkaline electrolyte at in-house synthesized PdNiO/C and Pd/C catalysts and the effect of heat treatment on the structure and performance of catalysts were studied by cyclic voltammetry,chronoamperometry,chronopotentiometry and X-ray diffraction methods.It is shown that when the reduction temperature is 70℃ and the ratio between Pd and Ni is 8∶2,The PdNiO/C catalyst presents a highest activity for methanol electrooxidation.Calcining can increase the particle size and crystallinity of catalysts,but decrease the dispersion and activity of catalysts, too.Besides,the NiO is disengaged from Pd lattice by heat-treatment.The optimal PdNiO/C catalyst shows higher catalytic activity and much better poisoning resistance than the Pd/C catalyst.
Keywords
methanol, alkaline, fuel cell, PdNiO, electrooxidation
Publication Date
2007-11-28
Online Available Date
2007-11-28
Revised Date
2007-11-28
Received Date
2007-11-28
Recommended Citation
Mei-li WANG, Lin SANG, Cheng-de HUANG.
EIectro-Oxidation of Methanol on PdNiO/C Catalyst in Alkaline Medium[J]. Journal of Electrochemistry,
2007
,
13(4): 377-381.
DOI: 10.61558/2993-074X.1837
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol13/iss4/4
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