PREPARATION OF CO-FE ELECTRODEPOSITS AND THEIR PERFORMANCE IN RELATION TO OXYGEN EVOLUTION IN 40WT-PERCENT KOH AT 70-DEGREES-C

Authors
BROSSARD L LESSARD M
Citation
L. Brossard et M. Lessard, PREPARATION OF CO-FE ELECTRODEPOSITS AND THEIR PERFORMANCE IN RELATION TO OXYGEN EVOLUTION IN 40WT-PERCENT KOH AT 70-DEGREES-C, International journal of hydrogen energy, 18(10), 1993, pp. 807-816
Citations number
15
Categorie Soggetti
Energy & Fuels","Environmental Sciences","Physics, Atomic, Molecular & Chemical
Journal title
International journal of hydrogen energy → ACNP
ISSN journal
03603199
Volume
18
Issue
10
Year of publication
1993
Pages
807 - 816
Database
ISI
SICI code
0360-3199(1993)18:10<807:POCEAT>2.0.ZU;2-2
Abstract
Co/Fe deposits were obtained on nickel substrate in a bath containing dissolved cobalt sulphate, iron nitrate and ammonium citrate at pH 9.8 . The composition and the morphology of the coatings are related to th e applied current density (0.02 0.8 A cm-2) experienced in the prepara tion bath. For a loading of 10 mg cm-2, the initial coating compositio n and morphology have less effect on both the potentiodynamic behaviou r and the oxygen evolution reaction (OER) in 40wt% KOH at 70-degrees-C than the preanodization time (0.5 or 12 h). The Tafel slope for the O ER is dependent on the preanodization time.