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Titolo:
A manometric method for the determination of chemical diffusion in perovskite-type cathode materials of the solid oxide fuel cell
Autore:
Badwal, SPS; Jiang, SP; Love, J; Nowotny, J; Rekas, M; Vance, ER;
Indirizzi:
Univ New S Wales, Sch Mat Sci & Engn, Ctr Mat Res Energy Convers, Sydney, NSW 2052, Australia Univ New S Wales Sydney NSW Australia 2052 s, Sydney, NSW 2052, Australia CSIRO, Clayton, Vic 3169, Australia CSIRO Clayton Vic Australia 3169CSIRO, Clayton, Vic 3169, Australia Ceram Fuel Cell Ltd, Noble Pk, Vic 3174, Australia Ceram Fuel Cell Ltd Noble Pk Vic Australia 3174 e Pk, Vic 3174, Australia Australian Nucl Sci & Technol Org, Lucas Hts, NSW 2234, Australia Australian Nucl Sci & Technol Org Lucas Hts NSW Australia 2234 Australia
Titolo Testata:
CERAMICS INTERNATIONAL
fascicolo: 4, volume: 27, anno: 2001,
pagine: 431 - 441
SICI:
0272-8842(2001)27:4<431:AMMFTD>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
OXIDATION-REDUCTION BEHAVIOR; OXYGEN COULOMETRIC TITRATION; MIXED CONDUCTING OXIDES; SR-DOPED LAMNO3; DEFECT STRUCTURE; NONSTOICHIOMETRY; LA0.8SR0.2COO3-DELTA; MANGANITES;
Keywords:
diffusion; perovskite; manometric method; SOFC;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Nowotny, J Univ New S Wales, Sch Mat Sci & Engn, Ctr Mat Res Energy Convers, Sydney, NSW 2052, Australia Univ New S Wales Sydney NSW Australia 2052 NSW 2052, Australia
Citazione:
S.P.S. Badwal et al., "A manometric method for the determination of chemical diffusion in perovskite-type cathode materials of the solid oxide fuel cell", CERAM INT, 27(4), 2001, pp. 431-441

Abstract

This paper describes a manometric method for the determination of chemicaldiffusion coefficients from gas/solid equilibration kinetics for electrodematerials of the type (La,Sr)(Mn,Fe,Co)O-3. The equilibration kinetics wasmonitored by measurements of the p(O-2) changes during a reaction between oxygen and the electrode material involving both oxidation and reduction experiments in the temperature range 773-1123 K. Activation energy of the chemical diffusion measurements at different temperatures was determined during both oxidation and reduction experiments. The chemical diffusion coefficients measured by the present manometric method on La0.8Sr0.2 MnO3-delta have been compared with those reported in the literature. (C) 2001 Elsevier Science Ltd and Techna S.r.l. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/09/20 alle ore 12:21:46