期刊
BIOSENSORS & BIOELECTRONICS
卷 83, 期 -, 页码 27-32出版社
ELSEVIER ADVANCED TECHNOLOGY
DOI: 10.1016/j.bios.2016.04.025
关键词
Paper-based batteries; Microbial fuel cells; Origami techniques; Battery stack
类别
资金
- NSF (ECCS) [1503462]
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [1503462] Funding Source: National Science Foundation
We developed a stackable and integrable paper-based microbial fuel cell (MFC) for potentially powering on-chip paper-based devices. Four MFCs were prepared on a T-shaped filter paper which was eventually folded three times to connect these MFCs in series. Each MFC was fabricated by sandwiching multifunctional paper layers for two-chambered fuel cell configuration. One drop of bacteria-containing anolyte into the anodic inlet and another drop of potassium ferricyanide for cathodic reaction flowed through patterned fluidic pathways within the paper matrix, both vertically and horizontally, reaching each of the four MFCs and filling the reservoir of each device. Bacterial respiration then transferred electrons to the anode, which traveled across an external load to the cathode where they combined with protons. The MFC stack connected in series generated a high power density (1.2 mu W/cm(2)), which is two orders of magnitude higher than the previous report on the paper-based MFC stack. This work will represent the fusion of the art of origami and paper-based MFC technology, which could provide a paradigm shift for the architecture and design of paper-based batteries. (C) 2016 Elsevier B.V. All rights reserved.
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