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Fabrication of Mg-Al Layered Double Hydroxide Thin Membrane for All-Solid-State Alkaline Fuel Cell Using Glass Paper as a Support
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| Title: | Fabrication of Mg-Al Layered Double Hydroxide Thin Membrane for All-Solid-State Alkaline Fuel Cell Using Glass Paper as a Support |
| Authors: | Kubo, Daiju Browse this author | | Tadanaga, Kiyoharu Browse this author →KAKEN DB | | Hayashi, Akitoshi Browse this author | | Tatsumisago, Masahiro Browse this author |
| Keywords: | glass paper | | layered double hydroxide | | alkaline fuel cells | | hydroxide ion conductivity | | electrolyte membrane |
| Issue Date: | 30-Apr-2020 |
| Publisher: | Frontiers Media |
| Journal Title: | Frontiers in Materials |
| Volume: | 7 |
| Start Page: | 117 |
| Publisher DOI: | 10.3389/fmats.2020.00117 |
| Abstract: | Layered double hydroxides (LDHs) are promising solid electrolytes for all solid-state alkaline fuel cells (AFCs) because of inorganic clay-like materials. However, LDHs were usually obtained as powder, and the formation of thin membranes as a separator of a fuel cell is rather difficult. In this study, a glass paper, non-woven fabric of fine glass fibers with more than 90% porosity, was used as a support for Mg-Al LDH powder, and self-standing, thin membranes for all solid-state AFCs were fabricated. Crystals of Mg-Al LDH were deposited in the inside of the glass paper by repeated immersion in Mg-Al LDH-dispersed solution and drying. Thickness of the obtained Mg-Al LDH thin membrane was about 150 mu m, and LDH layer showed c-axis orientation because of the plate-like structure. The H-2-O-2 fuel cell using the Mg-Al LDH thin membrane as an electrolyte showed open circuit voltage of more than 0.9 V, indicating that the Mg-Al LDH thin membrane is dense and has high gas barrier property. The H-2-O-2 fuel cell using the Mg-Al LDH thin membrane showed higher power density compared with that using pelletized Mg-Al LDH powder as the electrolyte. The glass paper is proved to be very effective support for making thin Mg-Al LDH electrolyte membrane. |
| Rights: | http://creativecommons.org/licenses/by/4.0/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/78771 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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