Electrooxidation of formaldehyde on Cu + Ni alloy electrodes in alkaline solutions

Electrooxidation of 0.20 M HCHO in 1 M NaOH was carried out on Cu, Ni, and Cu+Ni alloy electrodes. The open-circuit potential was +15 ∼ −90 mV RHE. The oxidation current was significant at potentials as low as 0.0 V RHE, particularly on Cu and Cu-rich alloys. The electrocatalytic activity was highes...

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Bibliographic Details
Published in:Journal of electroanalytical chemistry and interfacial electrochemistry 1986-04, Vol.201 (1), p.47-59
Main Author: Enyo, M.
Format: Article
Language:English
Subjects:
Adsorption
Chemistry
Electrochemistry
Exact sciences and technology
General and physical chemistry
Study of interfaces
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Summary:Electrooxidation of 0.20 M HCHO in 1 M NaOH was carried out on Cu, Ni, and Cu+Ni alloy electrodes. The open-circuit potential was +15 ∼ −90 mV RHE. The oxidation current was significant at potentials as low as 0.0 V RHE, particularly on Cu and Cu-rich alloys. The electrocatalytic activity was highest on the Cu 89Ni 11 alloy but its dependence upon the alloy composition was substantially smooth, decreasing with increase of the Ni content. Co-production of hydrogen during electrooxidation was noted but it became less significant on Ni-rich alloys or absent on Ni.
ISSN:0022-0728
DOI:10.1016/0022-0728(86)90087-2