Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 45, Issue -, Pages 44-47Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2014.05.010
Keywords
Enzyme; Bioelectrodes; Enzymatic biofuel cells; Microfluidic system; Capillary driven flow; Bucky paper
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Funding
- AFOSR Bioenergy Program [FA9550-12-1-0112]
- NSF-CBET [1158936]
- NMSBA
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [0844645] Funding Source: National Science Foundation
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [1158936] Funding Source: National Science Foundation
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This paper introduces a novel enzymatic fuel cell design that employs cellulose paper-based quasi-2D microfluidic system to supply biofuel to the enzymatic layer. The state of the art nanoarchitectural design, employing carbon nanotube-based papers for the bioelectrodes, allows a single cell to maintain 400 mV for 16 days of continuous operation in glucose solution and reach 1 mA of current output. Stacks of cells connected in series show successful performance using glucose in Gatorade (R) resulting in stack-cell potential of 1.8 V, employed to power a digital clock for 36 h, continuously. These designs open the possibility for obtaining enzymatic fuel cells that can run small portable devices on easily available ubiquitous liquids while addressing environmental concerns that are prevalent in traditional fuel cells. (C) 2014 Elsevier B.V. All rights reserved.
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