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ECS Meeting Abstracts, 10(MA2013-02), p. 749-749, 2013

DOI: 10.1149/ma2013-02/10/749

The Electrochemical Society, ECS Transactions, 2(58), p. 113-121, 2013

DOI: 10.1149/05802.0113ecst

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Nickel-Cerium Electrodes for Hydrogen Evolution in Alkaline Water Electrolysis

Journal article published in 2013 by Diogo M. F. Santos ORCID, Luis Amaral ORCID, Biljana Sljukic ORCID, Ć. Biljana Šljuki, Daniele Macciò, Adriana Saccone, Cesar Sequeira ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

The electrocatalytic activity of nickel-cerium (Ni-Ce) alloys towards the hydrogen evolution reaction (HER) in alkaline solution has been evaluated. Ni-Ce alloy electrodes with different low amounts of the rare earth element were prepared and tested in 8 M KOH aqueous electrolytes at temperatures ranging from 25 to 85 ºC. Polarization measurements are done to evaluate the HER on the Ni-Ce alloy electrodes and to determine several kinetic parameters, namely the Tafel coefficients, charge-transfer coefficients, and exchange current densities, allowing a direct comparison of the intrinsic HER activity of these electrodes with single Ni metal electrode prepared according to the same procedures