Enhancement of proton exchange membrane fuel cell performance by titanium-coated anode gas diffusion layer |
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| Affiliation: | 1. Department of Materials Science and Engineering, National Chung Hsing University, Taichung 40227, Taiwan;2. Department of Mechanical Engineering, National Pingtung University Science and Technology, Pingtung 91201, Taiwan;3. Department of Energy Engineering, National United University, Miaoli 36003, Taiwan;4. Department of Mold and Die Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 80782, Taiwan;5. Department of LCD, AU Optronics Corporation, Hsinchu 30778, Taiwan;1. State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, PR China;2. Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QR, United Kingdom |
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| Abstract: | Titanium was coated onto an anode gas diffusion layer (GDL) by direct current sputtering to improve the performance and durability of a proton exchange membrane fuel cell (PEMFC). Scanning electron microscopy (SEM) images showed that the GDLs were thoroughly coated with titanium, which showed angular protrusion. Single-cell performance of the PEMFCs with titanium-coated GDLs as anodes was investigated at operating temperatures of 25 °C, 45 °C, and 65 °C. Cell performances of all membrane electrode assemblies (MEAs) with titanium-coated GDLs were superior to that of the MEA without titanium coating. The MEA with titanium-coated GDL, with 10 min sputtering time, demonstrated the best performance at 25 °C, 45 °C, and 65 °C with corresponding power densities 58.26%, 32.10%, and 37.45% higher than that of MEA without titanium coating. |
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| Keywords: | Titanium Gas diffusion layer Proton exchange membrane fuel cells Sputtering |
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