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Technical Brief

Performance of Proton Exchange Membrane in the Presence of Mg2+

[+] Author and Article Information
Guo Li

School of Mechanical Engineering,
Nanjing Institute of Technology,
Nanjing, Jiangsu 211167, China
e-mail: liguoperfect@163.com

Jinzhu Tan, Jianming Gong, Xiaowei Zhang, Yanchao Xin, Xuejia Hu

School of Mechanical and Power Engineering,
Nanjing University of Technology,
Nanjing 211816, China

1Corresponding author.

Contributed by the Advanced Energy Systems Division of ASME for publication in the JOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY. Manuscript received May 24, 2012; final manuscript received March 15, 2014; published online April 23, 2014. Assoc. Editor: Abel Hernandez-Guerrero.

J. Fuel Cell Sci. Technol 11(4), 044501 (Apr 23, 2014) (4 pages) Paper No: FC-12-1046; doi: 10.1115/1.4027391 History: Received May 24, 2012; Revised March 15, 2014

Proton exchange membrane (PEM) fuel cell is regarded as one of the potential renewable energy which may provide a possible long-term solution to reduce carbon dioxide emissions, reduce fossil fuel dependency and increase energy efficiency. Even though great progress has been made, long-term stability and durability is still an issue. The contamination ion plays an important role on the electrical performance of PEM fuel cell. This paper investigates the effect of Mg2+ contamination on PEM fuel cell performance as a function of Mg2+ concentration. Two levels of Mg2+ concentration was chose. From the experimental results, it can be obtained that a significant drop in fuel cell performance occurred when Mg2+ was injected into the anode fuel stream. The voltage and power density of fuel cell decreased larger and larger with increase of Mg2+ concentration over time. The Mg2+ mainly caused the concentration polarization loss from the anode catalyst to the membrane in fuel cell.

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Figures

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Fig. 1

Schematic of the metal ion contamination testing system

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Fig. 2

Polarization curves for fuel cell before and after poisoned by 10 ppm Mg2+ in various soaking time

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Fig. 3

Polarization curves for fuel cell before and after poisoned by 10 and 100 ppm Mg2+ for 11 h

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Fig. 4

Power density curves for fuel cell before and after poisoned by 10 ppm and 100 ppm Mg2+ in various soaking time

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Fig. 5

Power density curves for fuel cell before and after poisoned by 10 ppm and 100 ppm Mg2+ for 11 h

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Fig. 6

Polarization curves for fuel cell before and after poisoned by 100 ppm Mg2+ at different inlets

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Fig. 7

Power density curves for fuel cell before and after poisoned by 100 ppm Mg2+ at different inlets

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