Effects of environmental factors on corrosion behaviors of metal-fiber porous components in a simulated direct methanol fuel cell environment

Wei Yuan, Bo Zhou, Yong Tang, Zhao-chun Zhang, Jun Deng

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    Wei Yuan, Bo Zhou, Yong Tang, Zhao-chun Zhang, and Jun Deng, Effects of environmental factors on corrosion behaviors of metal-fiber porous components in a simulated direct methanol fuel cell environment, Int. J. Miner. Metall. Mater., 21(2014), No. 9, pp.913-918. https://dx.doi.org/10.1007/s12613-014-0989-3
    Wei Yuan, Bo Zhou, Yong Tang, Zhao-chun Zhang, and Jun Deng, Effects of environmental factors on corrosion behaviors of metal-fiber porous components in a simulated direct methanol fuel cell environment, Int. J. Miner. Metall. Mater., 21(2014), No. 9, pp.913-918. https://dx.doi.org/10.1007/s12613-014-0989-3
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    Effects of environmental factors on corrosion behaviors of metal-fiber porous components in a simulated direct methanol fuel cell environment

    • Key Laboratory of Surface Functional Structure Manufacturing of Guangdong Higher Education Institutes, School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, 510640, China

    基金项目: 

    This work was financially supported by the Natural Science Foundation of Guangdong Province, China (No. S2013040016899), the Fundamental Research Funds for Central Universities of China (No. 2013ZM0003), the National Natural Science Foundation of China (No. 51275180), and the Open Fund of Shanghai Key Laboratory of Digital Manufacture for Thin-walled Structures (No. 2013001).

      通信作者:

      Wei Yuan E-mail: mewyuan@scut.edu.cn

    中文摘要

    To enable the use of metallic components in direct methanol fuel cells (DMFCs), issues related to corrosion resistance must be considered because of an acid environment induced by the solid electrolyte. In this study, we report the electrochemical behaviors of metal-fiber-based porous sintered components in a simulated corrosive environment of DMFCs. Three materials were evaluated: pure copper, AISI304, and AISI316L. The environmental factors and related mechanisms affecting the corrosion behaviors were analyzed. The results demonstrated that AISI316L exhibits the best performance. A higher SO42- concentration increases the risk of material corrosion, whereas an increase in methanol concentration inhibits corrosion. The morphological features of the corroded samples were also characterized in this study.

     

    Effects of environmental factors on corrosion behaviors of metal-fiber porous components in a simulated direct methanol fuel cell environment

    Author Affilications

      • Key Laboratory of Surface Functional Structure Manufacturing of Guangdong Higher Education Institutes, School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, 510640, China

    • Funds: 

      This work was financially supported by the Natural Science Foundation of Guangdong Province, China (No. S2013040016899), the Fundamental Research Funds for Central Universities of China (No. 2013ZM0003), the National Natural Science Foundation of China (No. 51275180), and the Open Fund of Shanghai Key Laboratory of Digital Manufacture for Thin-walled Structures (No. 2013001).

    • Received: 12 December 2013; Revised: 10 March 2014; Accepted: 19 March 2014;
    To enable the use of metallic components in direct methanol fuel cells (DMFCs), issues related to corrosion resistance must be considered because of an acid environment induced by the solid electrolyte. In this study, we report the electrochemical behaviors of metal-fiber-based porous sintered components in a simulated corrosive environment of DMFCs. Three materials were evaluated: pure copper, AISI304, and AISI316L. The environmental factors and related mechanisms affecting the corrosion behaviors were analyzed. The results demonstrated that AISI316L exhibits the best performance. A higher SO42- concentration increases the risk of material corrosion, whereas an increase in methanol concentration inhibits corrosion. The morphological features of the corroded samples were also characterized in this study.

     

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