Abstract
Rotating disk electrode was adopted in this paper to simulate the cathode in PEMFC.In the Cu2+ electrolyte,the influence of impurity Cu2+ on Carbon-Supported Pt Catalysts was investigated by using electrochemical measurements such as chronocoulometry,cyclic voltammetry and linear sweep.Experimental results showed that,after constant voltage at 0.49 V,the ECA of Pt/C decreased dramatically,it's perhaps under potential deposition of Cu might occur on the substrate.Meanwhile the change of ORR Tafel scope reaction is very large.It might be because oxygen adsorption sites are occupied by Cu atoms after they under potential deposit on surface of Pt/C catalyst,and the adsorption of oxygen on catalyst surface change from bridge type to top type.
Keywords
proton exchange membrane fuel cell, cation contaminants, rotating disk electrode, oxygen reduction reaction
Publication Date
2009-05-28
Online Available Date
2009-05-28
Revised Date
2009-05-28
Received Date
2009-05-28
Recommended Citation
Xiao JIE, Jun-bo HOU, Zhi-gang SHAO, Bao-lian YI.
Effect of Impurity Cu~(2+) on Oxygen Electrode in PEMFC[J]. Journal of Electrochemistry,
2009
,
15(2): 212-215.
DOI: 10.61558/2993-074X.1982
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol15/iss2/17
References
[1]Hou Zhong-jun(侯中军),Yi Bao-lian(衣宝廉).Re-searches on the deterioration of the PEMFC’s perform-ance in recent years[J].Chinese Journal of PowerSources,2005,29(7):482-487.
[2]Yu Hong-mei(俞红梅),Hou Zhong-jun(侯中军),YiBao-lian(衣宝廉).Performance of proton exchangemembrane fuel cell with CO/H2fuel[J].Electrochem-istry 2001,7(2):238-243.
[3]F A de Bruijn,Papageorgopoulos D C,Sitters E F,etal.The influence of carbon dioxide on PEMfuel cell an-odes[J].Journal of Power Sources,2002,110:117-124.
[4]Jon MMoorea,Paul LAdcocka,Barry Lakeman J,et al.The effects of battlefield contaminants on PEMFC per-formance[J].Journal of Power Sources,2000,85:254-260.
[5]Kelly Michael J,Fafilek Gnter,Besenhard Jrgen O,etal.Contaminant absorption and conductivity in polymerelectrolyte membranes[J].Journal of Power Sources,2006,154:249-252.
[6]Taro Kinumoto,Minoru Inabaa,Yoko Nakayama,et al.Durability of perfluorinated ionomer membrane againsthydrogen peroxide[J].Journal of Power Sources,2006,158:1222-1228.
[7]MatsuokaKoji,SakamotoShigeru,NakatoKunihiro,etal.Degradation of polymer electrolyte fuel cells underthe existence of anion species[J].Journal of PowerSources,2008,179:560-565.
[8]KimSunhoe,Shimpalee S,Van Zee J W,etal.Theeffect of stoichiometry on dynamic behavior of a protonexchange membrane fuel cell(PEMFC)during loadchange[J].Journal of Power Sources,2004,135:110-121.
[9]Hsien Shou-Shing,Huang Ching-Feng,Feng Chih-Lun,et al.A novel design and micro-fabrication for copper(Cu)electroforming bipolar plates[J].Micron,2008,39:263-268.
[10]Okada T,Ayato Y,Dale J,et al.Oxygen reduction ki-netics at platinum electrodes covered with perfluorinat-ed ionomer in the presence of impurity cations Fe3+,Ni2+and Cu2+[J].Phys Chem Chem Phys,2000,2:3255-3261.
[11]Wu Weichang(吴维昌).Handbook of standard elec-trode potentials[M].Beijing:Science Press,1991.
[12]Zha Quan-xing(查全性).An introduction to the kinet-ics of electrode processes[M].Beijing:Science Press,2002.
[13]Halseid Rune,Bystron Tomas,Tunold Reidar,et al.Oxygen reduction on platinum in aqueous sulphuricacid in the presence of ammonium[J].ElectrochimicaActa,2006,51:2737-2742.
[14]Markovic N M,Grgura B N,Lucas C A,et al.UPD ofCu on Pt(100):effects of anions on adsorption iso-therms and interface structures[J].ElectrochimicaActa,1998,44:1009-1017.
[15]Abe T,Swain G,M,Sashikata K,et al.Effect of un-derpotential deposition(UPD)of copper on oxygen re-duction at Pt(111)surfaces[J].Journal of Electroa-nalytical Chemistry,1995,382:73-83.
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