Application of work function measurements for surface monitoring of oxide electrode materials (La,Sr)(Co,Mn,Fe)O3

S. P.S. Badwal; T. Bak; S. P. Jiang; J. Love; Janusz Nowotny; M. Rekas; C. C. Sorrell; E. R. Vance

doi:10.1016/S0022-3697(00)00232-8

Application of work function measurements for surface monitoring of oxide electrode materials (La,Sr)(Co,Mn,Fe)O₃

S. P.S. Badwal
, T. Bak
, S. P. Jiang
, J. Love
, Janusz Nowotny
, M. Rekas
, C. C. Sorrell
, E. R. Vance

CSIRO
Ctr. Mat. Res. Ener. Conversion
Ceramic Fuel Cells Limited
Australian Nuclear Science and Technology Organisation

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	723-729
Number of pages	7
Journal	Journal of Physics and Chemistry of Solids
Volume	62
Issue number	4
DOIs	https://doi.org/10.1016/S0022-3697(00)00232-8
Publication status	Published - Apr 2001
Externally published	Yes

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10.1016/S0022-3697(00)00232-8

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title = "Application of work function measurements for surface monitoring of oxide electrode materials (La,Sr)(Co,Mn,Fe)O3",

abstract = "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.",

author = "Badwal, \{S. P.S.\} and T. Bak and Jiang, \{S. P.\} and J. Love and Janusz Nowotny and M. Rekas and Sorrell, \{C. C.\} and Vance, \{E. R.\}",

year = "2001",

month = apr,

doi = "10.1016/S0022-3697(00)00232-8",

language = "English",

volume = "62",

pages = "723--729",

journal = "Journal of Physics and Chemistry of Solids",

issn = "0022-3697",

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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 - https://www.scopus.com/pages/publications/0035311590

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 -

Application of work function measurements for surface monitoring of oxide electrode materials (La,Sr)(Co,Mn,Fe)O₃

Abstract

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