The effect of nitrogen oxides in air on the performance of proton exchange membrane fuel cell

Yang, Daijun; Ma, Jie; Xu, Lin; Wu, Minzhong; Wang, Haijiang

doi:10.1016/j.electacta.2005.11.018

Cited by 98 publications

(64 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In Figure 5(b), it appeared the maximum performance decay ratio in this study was in line with the data reported by Yang et al 26 who exposed the cathode to NO 2 for a relatively short duration. Meanwhile, relatively long impurity inflow to the cathode (Mohtadi 21 and Jing…”

supporting

confidence: 82%

Systematic Analysis for the Effects of Atmospheric Pollutants in Cathode Feed on the Performance of Proton Exchange Membrane Fuel Cells

Yoon

Choi

Lee³

et al. 2014

Bulletin of the Korean Chemical Society

View full text Add to dashboard Cite

This paper describes how primary contaminants in ambient air affect the performance of the cathode in fuel cell electric vehicle applications. The effect of four atmospheric pollutants (SO 2 , NH 3 , NO 2 , and CO) on cathode performance was investigated by air impurity injection and recovery test under load. Electrochemical analysis via polarization and electrochemical impedance spectroscopy was performed for various concentrations of contaminants during the impurity test in order to determine the origins of performance decay. The variation in cell voltage derived empirically in this study and data reported in the literature were normalized and juxtaposed to elucidate the relationship between impurity concentration and performance. Mechanisms of cathode degradation by air impurities were discussed in light of the findings.

show abstract

supporting

confidence: 82%

Systematic Analysis for the Effects of Atmospheric Pollutants in Cathode Feed on the Performance of Proton Exchange Membrane Fuel Cells

Yoon

Choi

Lee³

et al. 2014

Bulletin of the Korean Chemical Society

View full text Add to dashboard Cite

show abstract

“…In the last several years, significant progress has been made in identifying impurity sources and understanding their impacts on fuel cell performance [6][7][8][9][10][11][12][13][14]. For example, the primary impurities in hydrogen fuel are CO, H 2 S, NH 3 , and hydrocarbons deriving mainly from hydrogen-rich reformate gas; the major impurities in the air stream include NO x (NO 2 and NO), SO x (SO 3 and SO 2 ), and CO x (CO 2 and CO), as well as some volatile organic compounds (VOCs).…”

Section: Introductionmentioning

confidence: 99%

Effect of Co2+ on oxygen reduction reaction catalyzed by Pt catalyst, and its implications for fuel cell contamination

Tsay

Wang

et al. 2010

Electrochimica Acta

Self Cite

View full text Add to dashboard Cite

The oxygen reduction reaction (ORR) catalyzed by Pt was studied in the presence of Co 2+ using cyclic voltammetry (CV), rotating disk electrode (RDE), and rotating ring-disk electrode (RRDE) techniques in an effort to understand fuel cell cathode contamination caused by Co 2+ . Findings indicated that Co 2+ could weakly adsorb on the Pt surface, resulting in a slight change in ORR exchange current densities. However, this weak adsorption had no significant effect on the nature of the ORR rate determining steps. The results from both RDE and RRDE indicated that the overall electron transfer number of the ORR in the presence production. The fuel cell performance drop observed in the presence of Co 2+ could be attributed to the reduction in overall electron transfer number and the increase in H 2 O 2 production. Higher production could intensify the attack by H 2 O 2 and its radicals on membrane electrode assembly components, including the ionomer, carbon support, Pt particles, and membrane, leading to fuel cell degradation.Crown

show abstract

“…This problem, manifested as performance degradation, could be the result of Pt catalyst agglomeration and dissolution, catalyst carbon support corrosion, membrane degradation, and fuel cell contamination caused by feed stream and component impurities [2][3][4][5][6]. These impurities may be present in the fuel (e.g., CO, H 2 S, NH 3 , and hydrocarbons) [7][8][9][10] and/or in the air (e.g., NO x ,S O x ,C O x , and some volatile organic compounds [VOCs]) [11][12][13][14], and may originate from the fuel cell components and system (e.g., Fe 3+ ,Cu 2+ , and Cr 3+ ) or from the alloy catalysts (e.g., Co 2+ ,Ni 2+ , and Fe 3+ ) [15].…”

Section: Introductionmentioning

confidence: 99%

PEM fuel cell cathode contamination in the presence of cobalt ion (Co2+)

Gazzarri

Tsay

et al. 2010

Electrochimica Acta

Self Cite

View full text Add to dashboard Cite

was injected into the cathode air stream, and Co 2+ contamination became more severe with decreasing temperature. To investigate in detail the mechanism of Co 2+ poisoning, AC impedance was monitored before and during Co 2+ injection, revealing that both charge transfer and mass transport related processes deteriorated significantly in the presence of Co 2+ , whereas membrane conductivity decreased to a lesser extent. Surface cyclic voltammetry and contact angle measurements further revealed changes in physical properties, such as active Pt surface area and hydrophilicity, furthering our understanding of the contamination process.Crown

show abstract

The effect of nitrogen oxides in air on the performance of proton exchange membrane fuel cell

Cited by 98 publications

References 9 publications

Systematic Analysis for the Effects of Atmospheric Pollutants in Cathode Feed on the Performance of Proton Exchange Membrane Fuel Cells

Systematic Analysis for the Effects of Atmospheric Pollutants in Cathode Feed on the Performance of Proton Exchange Membrane Fuel Cells

Effect of Co2+ on oxygen reduction reaction catalyzed by Pt catalyst, and its implications for fuel cell contamination

PEM fuel cell cathode contamination in the presence of cobalt ion (Co2+)

Contact Info

Product

Resources

About