TY - JOUR
T1 - Application of work function measurements for surface monitoring of oxide electrode materials (La,Sr)(Co,Mn,Fe)O3
AU - Badwal, S. P.S.
AU - Bak, T.
AU - Jiang, S. P.
AU - Love, J.
AU - Nowotny, Janusz
AU - Rekas, M.
AU - Sorrell, C. C.
AU - Vance, E. R.
PY - 2001/4
Y1 - 2001/4
N2 - This paper reports application of the work function (WF) measurements for surface monitoring of perovskite-type electrode materials, such as (La,Sr)MnO3, (La,Sr)CoO3, (La,Sr)FeO3 as well as Co-doped and Fe-doped (La,Sr)MnO3, during oxidation and reduction. The WF changes during oxidation at 1073 K are considered in terms of several processes of different rate of appearance, such as (a) oxygen chemisorption, (b) oxygen incorporation into the oxide lattice and related changes of Fermi energy, (c) non-stoichiometry-induced transient oxygen chemisorption (desorption), and (d) structural changes within the surface layer that are induced by changes in oxygen partial pressure.
AB - This paper reports application of the work function (WF) measurements for surface monitoring of perovskite-type electrode materials, such as (La,Sr)MnO3, (La,Sr)CoO3, (La,Sr)FeO3 as well as Co-doped and Fe-doped (La,Sr)MnO3, during oxidation and reduction. The WF changes during oxidation at 1073 K are considered in terms of several processes of different rate of appearance, such as (a) oxygen chemisorption, (b) oxygen incorporation into the oxide lattice and related changes of Fermi energy, (c) non-stoichiometry-induced transient oxygen chemisorption (desorption), and (d) structural changes within the surface layer that are induced by changes in oxygen partial pressure.
UR - http://www.scopus.com/inward/record.url?scp=0035311590&partnerID=8YFLogxK
U2 - 10.1016/S0022-3697(00)00232-8
DO - 10.1016/S0022-3697(00)00232-8
M3 - Article
AN - SCOPUS:0035311590
SN - 0022-3697
VL - 62
SP - 723
EP - 729
JO - Journal of Physics and Chemistry of Solids
JF - Journal of Physics and Chemistry of Solids
IS - 4
ER -