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High voltage generation from wastewater by microbial fuel cells equipped with a newly designed low voltage booster multiplier (LVBM)
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| Title: | High voltage generation from wastewater by microbial fuel cells equipped with a newly designed low voltage booster multiplier (LVBM) |
| Authors: | Koffi, N'Dah Joel Browse this author | | Okabe, Satoshi Browse this author →KAKEN DB |
| Issue Date: | 4-Nov-2020 |
| Publisher: | Nature Research |
| Journal Title: | Scientific reports |
| Volume: | 10 |
| Issue: | 1 |
| Start Page: | 18985 |
| Publisher DOI: | 10.1038/s41598-020-75916-7 |
| Abstract: | Although microbial fuel cells (MFCs) can produce renewable energy from wastewater, the generated power is practically unusable. To extract usable power from an MFC fed with wastewater, we newly developed a low voltage booster multiplier (LVBM), which is composed of a self-oscillating LVB and multistage voltage multiplier circuits (VMCs). The low output MFC voltage (ca. 0.4 V) was successfully boosted up to 99 +/- 2 V, which was the highest voltage that has been ever reported, without voltage reversal by connecting an LVB with 20-stage VMCs. Moreover, the boosted voltage (81 +/- 1 V) was stably maintained for > 40 h even after disconnecting the LVBM from the MFC. The energy harvesting efficiency of LVBM was > 80% when an LVB with 4-stage VMCs was charged to 9.3 V. These results clearly suggest that the proposed LVBM system is an efficient and self-starting energy harvester and storage for low-power generating MFCs. |
| Rights: | https://creativecommons.org/licenses/by/4.0/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/79981 |
| 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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