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http://dx.doi.org/10.14478/ace.2017.1091

Study on the Optimization of Superhydrophobic Coating for the Durability of Gas Diffusion Layer in Alkaline Fuel Cells  

Kim, Soong Yeon (Plant Engineering Center, Institute for Advanced Engineering)
Seo, Minhye (Plant Engineering Center, Institute for Advanced Engineering)
Uhm, Sunghyun (Plant Engineering Center, Institute for Advanced Engineering)
Publication Information
Applied Chemistry for Engineering / v.28, no.6, 2017 , pp. 691-695 More about this Journal
Abstract
Optimization study was carried out to improve the durability of the gas diffusion layer (GDL) in alkaline fuel cell cathode by the use of highly stable PDMS superhydrophobic coating. Two different commercial GDLs were selected as substrates. Coating temperature and viscosity of PDMS were controlled for the stability of structure in microporous layer of GDL as well as uniform coating according to thermal characteristics of GDL. Regardless of PDMS viscosity, highly stable superhydrophobicities were obtained with both GDLs at $200^{\circ}C$. After the accelerated test, however, 28BC GDL coated with 1000 CS PDMS showed the best durability with the lowest loss of superhydrophobicity.
Keywords
alkaline fuel cells; gas diffusion layer; superhydrophobic; PDMS; PTFE;
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Times Cited By KSCI : 1  (Citation Analysis)
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