Corresponding Author

Hong-feng XU


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.


Proton exchange membrane, Fuel cell, Silver, Facilitated transportation

Publication Date


Online Available Date


Revised Date


Received Date



[1]Song G M,Cha S Y,LeeW M.Optim al composition ofpolym er electrolyte fuel cell electrodes determ ined bythe AC impedance m ethdod[J].J.Power Sources,2001,94:78~84.
[2]Xu Hongfeng(徐洪峰),L in Zh iyin(林治银),Q iu Yan-ling(邱艳玲),et al.Pt/C electrocatalyst for proton ex-change m embrane fuel cell[J].Ch inese Journal of catal-ysis(in Ch inese),2003,24(2):143~148.
[3]XU Z Q,Q i Z G,Kaufm an A.E ffect of oxygen storagem aterial on the perform ance of proton exchange m em-brane fuel cell[J].J.Power Sources,2003,115:40~47.
[4]Yu H B,K im J H,Lee H I,et al.Developm ent ofnanophase CeO2-Pt/C cathode catalyst for d irectm etha-nol fuel cell[J].J.Power Sources,2005,140:59~65.
[5]Hou X iangli(侯向理),Xu Hongfeng(徐洪峰),DongJianhua(董建华),et al.Oxygen enrichm ent effect ofCeO2to the cathode perform ance of proton exchangem embrane fuel cell[J].E lectrochem istry(in Ch inese),2006,12(1):89~92.
[6]Outlaw R A,Sankaran S N,Hofund G B,et al.Oxygentransport through h igh purity large grain Ag[J].J.M a-terial Research,1988,3(6):1378~83.
[7]Sungpet A,W ay J D,Koval C A,et al.S ilver dopedNafion-poly(pyrrole)m embranes for fac ilitated perm e-ation of liqu id-phase olefins[J].Journal of M embraneSc ience,2001,189(2):271~79.
[8]Sakai T,Takenaka H,Torikai E.Oxygen/n itrogen sep-aration by a nafion-Ag m icrocomposite m embrane[J].Journal ofM embrane Sc ience,1987,31:227~232.
[9]Gode P,L indbergh G,Sundholm G.In-situ m easure-m ents of gas perm eab ility in fuel cellm embranes using acylindrical m icroelectrode[J].Journal of E lectroanaly-tical Chem istry,2002,518(4):115~122.
[10]Mo Zh ishen(莫志深),Zhang Hongfang(张宏放).Structure of Crystalline Polym ers by X-ray D iffraction(B)[M].Be ijing:Sc ience Press,2003.186~187.
[11]W ang Shaoting(王绍亭),Chen Tao(陈涛).Funda-m ental of Chem ical Transport Process(B)[M].Be i-jing:Chem ical Industry Press,1998:207~208.



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.