Surface intermediates on metal electrodes at high temperatures

Birgit Zachau-Christiansen, Torben Jacobsen, Lasse Bay, Steen Skaarup

Research output: Contribution to journalJournal articleResearchpeer-review


The mechanisms widely conceived for the O(2)-reduction or H(2)-oxidation reactions in SOFC's involve intermediate O/H species adsorbed on the electrode surface. The presence of these intermediates is investigated by linear sweep voltammetry. In air at moderate temperatures (500 degrees C) Pt in contact with YSZ is covered with adsorbed oxygen which vanishes at high temperature (1000 degrees C). On Ni (YSZ) a specific layer of NiO is observed above the equilibrium potential while no surface species involving hydrogen can be identified at SOFC anode conditions. (C) 1998 Published by Elsevier Science B.V. All rights reserved.
Original languageEnglish
JournalSolid State Ionics
Issue numberSI
Pages (from-to)271-277
Publication statusPublished - 1998


Dive into the research topics of 'Surface intermediates on metal electrodes at high temperatures'. Together they form a unique fingerprint.

Cite this