The effects of NOx(in a ratio of NO:NO2 = 9:1) and SO2 in cathode stream on the performance of a single proton exchange membrane fuel cell (PEMFC) were investigated. NOx with concentrations of 1×10-3% (in volume, the same as follows), 1.4×10-2% and 1×10-3% could cause significant detrimental effects on the cell performance. However, nearly complete recovery of the cell performance could be observed after NOx was shut off and purged with clean air. The electrochemical measurements suggested that the impacts of NOx resulted mainly from the superposition of the oxygen reduction reaction (ORR),NO and HNO2 oxidation reactions, and the increased cathodic impedance. Trace SO2 with concentrations of 5 × 10-6%, 5 ×10-3%, 2 × 10-4% and 3.2 × 10-4% influenced the cell much severer, which could be attributed to its strong adsorption on the surface of Pt atoms. The cell performance could not be completely recovered after purged with clean air and cyclic voltammetry (CV) tests, due to the changes of electrochemical impedance spectroscopy (ELS) and electrochemical active surface (EAS) caused by surface state change after SO2 exposure.
作 者： 杨代军 马建新 周伟 马晓伟 邬敏忠 徐麟 万钢 YANG Dai-jun MA Jian-xin ZHOU Wei MA Xiao-wei WU Min-zhong XU Lin WAN Gang  
作者单位： 杨代军,马建新,周伟,马晓伟,万钢,YANG Dai-jun,MA Jian-xin,ZHOU Wei,MA Xiao-wei,WAN Gang(同济大学新能源汽车工程中心)
邬敏忠,徐麟,WU Min-zhong,XU Lin(上海燃料电池动力系统有限公司) 
刊 名： 电池  ISTIC PKU
英文刊名： BATTERY BIMONTHLY 
年，卷(期)： 2006 36(5) 
分类号： TM911.48 
关键词： nitrogen oxides   sulfur dioxide   PEMFC   cathode   effect  
机标分类号： TM9 TB3 
机标关键词： cell performanceproton exchange membraneimpedance spectroscopyreduction reactioncyclic voltammetrystate changefuel cellshut off 
 
参考文献(10条)
Uribe F.Valerio J.Rockward T Effects of some air impurities on PEM fuel cell performance 2004
Mohtadi R.Lee W K.Van Zee J W Assessing durability of cathodes exposed to common air impurities 2004(1-2)
Moore J M.Adcock P L.Lakeman J B The effects of battlefield contaminants on PEMFC performance 2000(2)
Kandylas I P.Haralampous O A.Koltsakis G C Diesel Soot Oxidation with NO2:Engine Experiments and Simulations 2002(22)
Kandylas I P.Koltsakis G C NO2-Assisted Regeneration of Diesel Particulate Filters:A Modeling Study 2002(9)
Bétournay M C.Bonnell G.Edwardson E The effects of mine conditions on the performance of a PEM fuel cell 2004(1)
Castellanos R H.Ocampo A L.Moreira-Acosta J Synthesis and characterization of osmium carbonyl cluster compounds with molecular oxygen electroreduction capacity 2001(12)
Hombrados A G.González L.Rubio M A Symmetrical electrode mode for PEMFC characterisation using impedance spectroscopy 2005(1)
Wagner N.Schnurnberger W.Muller B Electrochemical impedance spectra of solid-oxide fuel cells and polymer membrane fuel cells 1998(24)
Pozio A.De Francesco M.Cemmi A Comparison of high surface Pt/C catalysts by cyclic voltammetry 2002(1)

引证文献(1条) 
陈专.吕洪.马晓伟.马建新 FCE空气过滤吸附材料压降试验与仿真研究 [期刊论文] -计算机仿真2009(5)

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