ELECTROCHEMICAL ACTIVITY ENHANCEMENT OF A LANI4.7AL0.3 ELECTRODE TREATED WITH AN ALKALINE-SOLUTION CONTAINING H2O2

Authors
KURIYAMA N SAKAI T MIYAMURA H TANAKA H TAKESHITA HT UEHARA I
Citation
N. Kuriyama et al., ELECTROCHEMICAL ACTIVITY ENHANCEMENT OF A LANI4.7AL0.3 ELECTRODE TREATED WITH AN ALKALINE-SOLUTION CONTAINING H2O2, Journal of alloys and compounds, 253, 1997, pp. 598-600
Citations number
5
Categorie Soggetti
Chemistry Physical","Metallurgy & Metallurigical Engineering","Material Science
Journal title
Journal of alloys and compounds → ACNP
ISSN journal
09258388
Volume
253
Year of publication
1997
Pages
598 - 600
Database
ISI
SICI code
0925-8388(1997)253:<598:EAEOAL>2.0.ZU;2-9
Abstract
Enhancement of the electrochemical activity of a LaNi4.7Al0.3 electrod e was observed subsequent to some charge-discharge cycles in a KOH sol ution containing hydrogen peroxide. Metallic nickel is enriched at the alloy surface after the treatment, and the concentration of lanthanum decreased during the treatment. The change in the distribution of ele ments at the alloy surface is expected to lead to a different dispersi on state of nickel particles in the region, resulting in improvement o f the catalytic activity for the charge-transfer process on the alloy surface.