✦ LIBER ✦

00/03454 Understanding the mechanism by which bismuth improves lead-acid battery capacity

Publisher: Elsevier Science
Year: 2000
Weight: 221 KB
Volume: 41
Category: Article
ISSN: 0140-6701
DOI: 10.1016/s0140-6701(00)94527-2

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✦ Synopsis

06 Electrical power supply and utilization (scientific, technical) The electrocatalytic properties of a fuel cell catalyst ink in thin film form based on Vulcan XC72/Pt (30%) and Nafion was investigated by means of a flow cell of impinging jet type in flows of H2 and HZ + CO dissolved in Hz SOa electrolyte.

CO adlayers of different coverages were produced by a dosing procedure and their electrooxidative removal was studied. Ruthenium was deposited onto the ink in .ritrr by electroreduction and the basic voltammetry of such electrodes was investigated as well as the influence on CO adlayers and CO-tolerance.

A Nafion film on top of the ink film influenced both the behaviour of CO adlayers and CO-tolerance. The feasibility of the flow cell for Investigation and modification of ink electrodes were demonstrated.

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