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.
|Title of host publication||11th International Conference on Solid State Ionics - Extended Abstracts|
|Place of Publication||Honolulu|
|Publisher||International Society for Solid State Ionics|
|Publication status||Published - 1997|
|Event||11th International Conference on Solid State Ionics - Waikiki Beach, Honolulu, Hawaii, United States|
Duration: 16 Nov 1997 → 21 Nov 1997
|Conference||11th International Conference on Solid State Ionics|
|Period||16/11/1997 → 21/11/1997|
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.