直近一年間の累計
アクセス数 : ?
ダウンロード数 : ?
ID 116722
著者
Kikuchi, Mayu Kyoto University
Sowa, Keisei Kyoto University
Nakagawa, Kasumi Tokushima University
Matsunaga, Momoka Tokushima University
Ando, Akinori Kyoto University
Kano, Kenji Kyoto University
Takeuchi, Michiki Kyoto University
キーワード
indigo
indigo fermentation
microbial fuel cell
資料タイプ
学術雑誌論文
抄録
Aizome (Japanese indigo dyeing) is a unique dyeing method using microbial activity under anaerobic alkaline conditions. In indigo-dye fermenting suspensions; microorganisms reduce indigo into leuco-indigo with acetaldehyde as a reductant. In this study; we constructed a semi-microbial biofuel cell using an indigo-dye fermenting suspension. Carbon fiber and Pt mesh were used as the anode and cathode materials, respectively. The open-circuit voltage (OCV) was 0.6 V, and the maximum output power was 32 µW cm−2 (320 mW m−2). In addition, the continuous stability was evaluated under given conditions starting with the highest power density; the power density rapidly decreased in 0.5 h due to the degradation of the anode. Conversely, at the OCV, the anode potential exhibited high stability for two days. However, the OCV decreased by approximately 80 mV after 2 d compared with the initial value, which was attributed to the performance degradation of the gas-diffusion-cathode system caused by the evaporation of the dispersion solution. This is the first study to construct a semi-microbial biofuel cell using an indigo-dye fermenting suspension.
掲載誌名
Catalysts
ISSN
20734344
出版者
MDPI
11
9
開始ページ
1080
発行日
2021-09-08
権利情報
This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
EDB ID
出版社版DOI
出版社版URL
フルテキストファイル
言語
eng
著者版フラグ
出版社版
部局
生物資源系