Study of gadolinia-doped ceria solid electrolyte surface by XPS

被引：57

作者：

Datta, Pradyot ^{[1
,3
,4
]}

Majewski, Peter ^{[2
]}

Aldinger, Fritz ^{[3
,4
]}

机构：

[1] Tech Univ Clausthal, Inst Met, D-38678 Clausthal Zellerfeld, Germany

[2] Univ S Australia, Sch Adv Mfg & Mech Engn, Mawson Inst, Mawson Lakes, SA 5092, Australia

[3] Univ Stuttgart, Max Planck Inst Met Forsch, D-70569 Stuttgart, Germany

[4] Univ Stuttgart, Inst Nichtmetall & Anorgan Mat, D-70569 Stuttgart, Germany

来源：

MATERIALS CHARACTERIZATION | 2009年 / 60卷 / 02期

关键词：

Ceramics; Gadolinia-doped ceria; Photoelectron spectroscopy; X-RAY PHOTOELECTRON; OXIDE FUEL-CELLS; PHOTOEMISSION SPECTRA; MULTIPLET STRUCTURE; WET OXIDATION; MIXED OXIDES; SPECTROSCOPY; CEO2; CONDUCTIVITY; REDUCTION;

D O I：

10.1016/j.matchar.2008.08.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Gadolinia-doped ceria (CGO) is an important material to be used as electrolyte for solid oxide fuel cell for intermediate temperature operation. Ceria doped with 10 mol% gadolinia (Ce0.9Gd0.1O1.95) was prepared by conventional solid state synthesis and found to be single phase by room temperature X-ray diffraction (XRD). The chemical states of the surface of the prepared sample were analyzed by X-ray photoelectron spectroscopy (XPS). Though Gd was present in its characteristic chemical state, Ce was found in both Ce4+ and Ce3+ states. Presence of Ce 3, state was ascribed to the differential yield of oxygen atoms in the sputtering process. (c) 2008 Elsevier Inc. All rights reserved.

引用

页码：138 / 143

页数：6

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