Low Cost Environmentally Benign Porous Paper Based Fuel Cells for Micro-Nano Systems

Lal, S and Janardhanan, V and M, Deepa and Sagar, A and Sahu, Kirti Chandra (2015) Low Cost Environmentally Benign Porous Paper Based Fuel Cells for Micro-Nano Systems. Journal of The Electrochemical Society, 162 (14). F1402-F1407. ISSN 0013-4651

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This work deals with the development of a paper based fuel cell for application in micro-nano systems. In this cell, a porous paper serves as a transport medium and eliminates the need for any metering devices that are integral to conventional fuel cells. Since only very small flow rates of reagents can be achieved on paper, these cells produce only a few milli-watts of power. In this work, formic acid is used as the fuel and potassium permanganate is used as the oxidant. Since the cell presented here is membraneless, both formic acid and potassium permanganate are mixed with sulfuric acid, and they form the anolyte and the catholyte, respectively. A special cell geometry has been designed and implemented to minimize and delay the fuel and oxidant cross over effects. In order to keep the cost low, graphite sheets without any metal loading are used as the current collectors. Two variants of filter paper are used for implementing the fuel cells. Cell characterization is accomplished by performing detailed potentiometric and impedance studies. Our study on formic acid cell shows that the porous paper cell architecture can be extended to other fuel-oxidant combinations as well.

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IITH Creators:
IITH CreatorsORCiD
Janardhanan, Vhttp://orcid.org/0000-0002-3458-4169
Sahu, Kirti Chandrahttp://orcid.org/0000-0002-7357-1141
Item Type: Article
Uncontrolled Keywords: Formic acid, graphite electrode, KMnO4 oxidant, micro-nano systems, paper based fuel cell, self breathing
Subjects: Chemical Engineering > Explosives, fuels, related products
Chemical Engineering > Biochemical Engineering
Divisions: Department of Chemical Engineering
Department of Chemistry
Depositing User: Team Library
Date Deposited: 23 Oct 2015 05:22
Last Modified: 04 Dec 2017 04:45
URI: http://raiith.iith.ac.in/id/eprint/1992
Publisher URL: https://doi.org/10.1149/2.0251514jes
OA policy: http://www.sherpa.ac.uk/romeo/issn/0013-4651/
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