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A Direct Borohydride/Hydrogen Peroxide Fuel Cell with Reduced Alkali Crossover

Raman, RK and Shukla, AK (2007) A Direct Borohydride/Hydrogen Peroxide Fuel Cell with Reduced Alkali Crossover. In: Fuel Cells, 7 (3). pp. 225-231.

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/fuce.20...

Abstract

A direct borohydride/hydrogen peroxide fuel cell, employing a misch-metal alloy anode and carbon-supported lead sulfate $(PbSO_4/C)$ cathode with a Nafion®-961 membrane electrolyte, is reported. The use of a Nafion®-961 membrane electrolyte in the fuel cell lessens the crossover of aqueous sodium hydroxide from the anode to cathode. Initial results indicate that the fuel cell exhibits a maximum power density of 10 mW cm-2 at an operating voltage of 0.77 V with an oxidant utilization of about 80% at 25 °C. The fuel cell also avoids the use of noble-metal catalysts. The unique combination of sodium borohydride and hydrogen peroxide, both of which are in aqueous from, paves the way for a convenient unitized refueling design that is inherently compact compared to fuel cells that use gaseous reactants. Such a fuel cell is expected to find application in situations where anaerobic conditions prevail, e.g., in submersible and space applications.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to John Wiley and Sons.
Keywords: Direct Borohydride/Hydrogen Peroxide Fuel Cell;Hydrogen Peroxide;Lead Sulfate;Nafion®-117;Nafion®-961
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 19 Sep 2007
Last Modified: 03 Feb 2012 07:11
URI: http://eprints.iisc.ernet.in/id/eprint/11820

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