Surface Intermediates on Metal Electrodes at High Temperature

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

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

Abstract

The mechanisms widely suggested for the O2-reduc-tion or H2-oxidation SOFC reactions involve inter-mediate O/H species adsorbed on the electrode surface. The presence of these intermediates is investigated by linear sweep voltammetry. In airat moderate temperatures (500øC) Pt in contact with YSZ is covered with adsorbed oxygen which vanishes at high temperature (1000øC). On Ni (YSZ) a specific layer of NiO is observed abovethe equilibrium potential while no surface species can identified at SOFC anode conditions.
Original languageEnglish
Title of host publication11th International Conference on Solid State Ionics - Extended Abstracts
Place of PublicationHonolulu
PublisherInternational Society for Solid State Ionics
Publication date1997
Publication statusPublished - 1997
Event11th International Conference on Solid State Ionics - Waikiki Beach, Honolulu, Hawaii, United States
Duration: 16 Nov 199721 Nov 1997

Conference

Conference11th International Conference on Solid State Ionics
LocationWaikiki Beach
CountryUnited States
CityHonolulu, Hawaii
Period16/11/199721/11/1997

Cite this

Zachau-Christiansen, B., Jacobsen, T., Bay, L., & Skaarup, S. (1997). Surface Intermediates on Metal Electrodes at High Temperature. In 11th International Conference on Solid State Ionics - Extended Abstracts Honolulu: International Society for Solid State Ionics.