A direct borohydride/hydrogen peroxide fuel cell with reduced alkali crossover

Raman, R. K. ; Shukla, A. K. (2007) A direct borohydride/hydrogen peroxide fuel cell with reduced alkali crossover Fuel Cells, 7 (3). pp. 225-231. ISSN 1615-6846

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

Related URL: http://dx.doi.org/10.1002/fuce.200600023

Abstract

A direct borohydride/hydrogen peroxide fuel cell, employing a misch-metal alloy anode and carbon-supported lead sulfate (PbSO4/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 10mWcm-2 at an operating voltage of 0.77V 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:Article
Source: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
ID Code:81794
Deposited On:07 Feb 2012 12:10
Last Modified:07 Feb 2012 12:10

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