Abstract
Silver(Ag) was deposited in the pores of Nafion membrane by ion exchange and succedent hydrogen reduction;the structures of Nafion-Ag membrane were measured by TEM and XRD,the diffusion coefficients of oxygen in Nafion-Ag was determined by electrochemical limited current method.The results showed that after deposited silver,the pores in the Nafion were enlarged by silver grains;the oxygen diffusion coefficient was increased about four times.By introducing silver in the thin Nafion film around the cathode catalyst,the performance of PEM fuel cell have a evident increasing in high current density, which shows the facilitated effects of silver to oxygen transportation in PEM fuel cell.
Keywords
Proton exchange membrane, Fuel cell, Silver, Facilitated transportation
Publication Date
2006-11-28
Online Available Date
2006-11-28
Revised Date
2006-11-28
Received Date
2006-11-28
Recommended Citation
Hong-feng XU, Jian-hua DONG, Xiang-li HOU.
Facilitated Effect of Ag to Oxygen Transportation in PEM Fuel Cell Air Cathodes[J]. Journal of Electrochemistry,
2006
,
12(4): 434-438.
DOI: 10.61558/2993-074X.1768
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol12/iss4/17
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