ELECTROCHEMISTRY OF FUEL CELL ELECTRODES
Abstract
In an attempt to correlate electrode behavior with the electronic properties of electrode materials with incompletely occupied d-orbitals, a number of intermetallic compounds containing nickel together with an electronegative element from groups IV-B, V-B, and VI-B of periodic tables, were synthesized and evaluated as electrode materials. NiO, NiS, NiAs, NiSb, NiSi and elemental nickel in the massive form have been studied in N2, O2 and H2 atmospheres in both alkaline and acid perchlorate media. Anodic and cathodic polarization measurements were made. Polarization was pronounced at moderate current densities. Participation of O2 and H2 was poor and the corrosion reactions was prominent. The cathodic hydrogen evolution reaction on these electrodes is discussed. The use of palladium as a support material for quick permeation of hydrogen and avoiding the three-phase interface problem is discussed. Results of the effect of various treatment of the palladium surface on the permeation of hydrogen are presented and discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 27, 1962
- Accession Number
- AD0634241
Entities
People
- A. I. Mlavsky