Structural modification of electrode for anion exchange membrane fuel cell by controlling ionomer dispersion

International Journal of Energy ResearchVolume 46, Issue 5 p. 6471-6479 RESEARCH ARTICLE Structural modification of electrode for anion exchange membrane fuel cell by controlling ionomer dispersion Sungjun Kim, Sungjun Kim Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, Republic of Korea School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of KoreaSearch for more papers by this authorChi-Yeong Ahn, Chi-Yeong Ahn Alternative Fuels and Power System Research Division, Korea Research Institute of Ships and Ocean Engineering (KRISO), Daejeon, Republic of Korea Department of Green Mobility, University of Science and Technology (UST), Daejeon, Republic of KoreaSearch for more papers by this authorMohanraju Karuppannan, Mohanraju Karuppannan Department of Energy and Chemical Engineering and Innovation Centre for Chemical Engineering, Incheon National University, Incheon, Republic of KoreaSearch for more papers by this authorYung-Eun Sung, Yung-Eun Sung Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, Republic of Korea School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of KoreaSearch for more papers by this authorOh Joong Kwon, Corresponding Author Oh Joong Kwon [email protected] orcid.org/0000-0002-7745-433X Department of Energy and Chemical Engineering and Innovation Centre for Chemical Engineering, Incheon National University, Incheon, Republic of Korea Correspondence Oh Joong Kwon, Department of Energy and Chemical Engineering and Innovation Centre for Chemical Engineering, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea. Email: [email protected] Yong-Hun Cho, Department of Chemical Engineering, Kangwon National University, Samcheok 24341, Republic of Korea. Email: [email protected]Search for more papers by this authorYong-Hun Cho, Corresponding Author Yong-Hun Cho [email protected] orcid.org/0000-0002-8714-5346 Department of Chemical Engineering, Kangwon National University, Samcheok, Republic of Korea Correspondence Oh Joong Kwon, Department of Energy and Chemical Engineering and Innovation Centre for Chemical Engineering, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea. Email: [email protected] Yong-Hun Cho, Department of Chemical Engineering, Kangwon National University, Samcheok 24341, Republic of Korea. Email: [email protected]Search for more papers by this author Sungjun Kim, Sungjun Kim Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, Republic of Korea School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of KoreaSearch for more papers by this authorChi-Yeong Ahn, Chi-Yeong Ahn Alternative Fuels and Power System Research Division, Korea Research Institute of Ships and Ocean Engineering (KRISO), Daejeon, Republic of Korea Department of Green Mobility, University of Science and Technology (UST), Daejeon, Republic of KoreaSearch for more papers by this authorMohanraju Karuppannan, Mohanraju Karuppannan Department of Energy and Chemical Engineering and Innovation Centre for Chemical Engineering, Incheon National University, Incheon, Republic of KoreaSearch for more papers by this authorYung-Eun Sung, Yung-Eun Sung Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, Republic of Korea School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of KoreaSearch for more papers by this authorOh Joong Kwon, Corresponding Author Oh Joong Kwon [email protected] orcid.org/0000-0002-7745-433X Department of Energy and Chemical Engineering and Innovation Centre for Chemical Engineering, Incheon National University, Incheon, Republic of Korea Correspondence Oh Joong Kwon, Department of Energy and Chemical Engineering and Innovation Centre for Chemical Engineering, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea. Email: [email protected] Yong-Hun Cho, Department of Chemical Engineering, Kangwon National University, Samcheok 24341, Republic of Korea. Email: [email protected]Search for more papers by this authorYong-Hun Cho, Corresponding Author Yong-Hun Cho [email protected] orcid.org/0000-0002-8714-5346 Department of Chemical Engineering, Kangwon National University, Samcheok, Republic of Korea Correspondence Oh Joong Kwon, Department of Energy and Chemical Engineering and Innovation Centre for Chemical Engineering, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea. Email: [email protected] Yong-Hun Cho, Department of Chemical Engineering, Kangwon National University, Samcheok 24341, Republic of Korea. Email: [email protected]Search for more papers by this author First published: 22 December 2021 https://doi.org/10.1002/er.7583Citations: 2 Sungjun Kim and Chi-Yeong Ahn, contributed equally to this study. Funding information: Incheon National University, Grant/Award Number: Incheon National University Research Concentration; Korea Research Council for Industrial Science and Technology, Grant/Award Number: KS2122-10; Korea Research Institute of Chemical Technology Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Summary An appropriate electrode microstructure design should be necessary to achieve high-performance anion exchange membrane fuel cells (AEMFCs). In general, the electrodes are fabricated from catalyst slurries which contain self-assembled agglomerates of catalyst particles with ionomer dispersed in a solvent. Therefore, solvent nature greatly affects the microstructure of the electrode, such as the pore structure and the formation of triple-phase boundaries for electrochemical reactions. Here, we investigate the influence of solvent on the microstructure of I2 ionomer-based electrode and its performance using three alcohol-based solvents (ethanol, 2-propanol, and 2-methyl-2-propanol [tBuOH)) with different dielectric constants and similar boiling points. Various physical and electrochemical characterization confirmed that the electrode pore structure changes significantly depending on the type of solvent while the electrochemically active surface area hardly changes. Furthermore, the efect of the three electrodes with different pore structures on AEMFC performance is observed for anode and cathode, respectively. It is demonstrated that the porous electrode with large pores is more advantageous in performance than a dense electrode at both the anode and the cathode for AEMFC. Consequently, the membrane electrode assembly with porous tBuOH-based electrodes exhibits more than 40% higher performance (1.32 W cm−2) than dense ethanol-based electrodes (0.94 W cm−2). Open Research DATA AVAILABILITY STATEMENT The data that support the findings of this study are available from the corresponding author upon reasonable request. Citing Literature Supporting Information Filename Description er7583-sup-0001-Supinfo.docxWord 2007 document , 84 KB Data S1. Supporting information. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article. Volume46, Issue5April 2022Pages 6471-6479 RelatedInformation