Synthesis of BaCeO3 and BaCe0.9Y0.1O3-δ from mixed oxalate precursors

Ana Paula Almeida de Oliveira; Julien Hafsaoui; Jean François Hochepied; Marie Hélène Berger; Alain Thorel

doi:10.1016/j.jeurceramsoc.2007.02.012

Synthesis of BaCeO₃ and BaCe_0.9Y_0.1O_3-δ from mixed oxalate precursors

Ana Paula Almeida de Oliveira
, Julien Hafsaoui
, Jean François Hochepied
, Marie Hélène Berger
, Alain Thorel

Mines ParisTech

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

An oxalate precipitation route is proposed for the synthesis of BaCe_1-xY_xO₃ (x = 0 and 0.1) after calcination at 1100 °C. The precipitation temperature (70 °C) was a determinant parameter for producing a pure perovskite phase after calcination at 1100 °C for 1 h. TG/DTA measurements showed that the co-precipitated (Ba, Ce and Y) oxalate had a different thermal behaviour from single oxalates. Despite a simple grinding procedure, sintered BaCe_0.9Y_0.1O_3-δ pellets (1400 °C, 48 h) presented 90.7% of relative density and preliminary impedance measurements showed an overall conductivity of around 2 × 10^-4 S cm^-1 at 320 °C.

langue originale	Anglais
Pages (de - à)	3597-3600
Nombre de pages	4
journal	Journal of the European Ceramic Society
Volume	27
Numéro de publication	13-15
Les DOIs	https://doi.org/10.1016/j.jeurceramsoc.2007.02.012
état	Publié - 6 juil. 2007
Modification externe	Oui

Accès au document

10.1016/j.jeurceramsoc.2007.02.012

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Contient cette citation

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title = "Synthesis of BaCeO3 and BaCe0.9Y0.1O3-δ from mixed oxalate precursors",

abstract = "An oxalate precipitation route is proposed for the synthesis of BaCe1-xYxO3 (x = 0 and 0.1) after calcination at 1100 °C. The precipitation temperature (70 °C) was a determinant parameter for producing a pure perovskite phase after calcination at 1100 °C for 1 h. TG/DTA measurements showed that the co-precipitated (Ba, Ce and Y) oxalate had a different thermal behaviour from single oxalates. Despite a simple grinding procedure, sintered BaCe0.9Y0.1O3-δ pellets (1400 °C, 48 h) presented 90.7\% of relative density and preliminary impedance measurements showed an overall conductivity of around 2 × 10-4 S cm-1 at 320 °C.",

keywords = "Fuel cells, Membranes, Perovskites, Powders-chemical preparation",

author = "\{Almeida de Oliveira\}, \{Ana Paula\} and Julien Hafsaoui and Hochepied, \{Jean Fran{\c c}ois\} and Berger, \{Marie H{\'e}l{\`e}ne\} and Alain Thorel",

year = "2007",

month = jul,

day = "6",

doi = "10.1016/j.jeurceramsoc.2007.02.012",

language = "English",

volume = "27",

pages = "3597--3600",

journal = "Journal of the European Ceramic Society",

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}

TY - JOUR

T1 - Synthesis of BaCeO3 and BaCe0.9Y0.1O3-δ from mixed oxalate precursors

AU - Almeida de Oliveira, Ana Paula

AU - Hafsaoui, Julien

AU - Hochepied, Jean François

AU - Berger, Marie Hélène

AU - Thorel, Alain

PY - 2007/7/6

Y1 - 2007/7/6

N2 - An oxalate precipitation route is proposed for the synthesis of BaCe1-xYxO3 (x = 0 and 0.1) after calcination at 1100 °C. The precipitation temperature (70 °C) was a determinant parameter for producing a pure perovskite phase after calcination at 1100 °C for 1 h. TG/DTA measurements showed that the co-precipitated (Ba, Ce and Y) oxalate had a different thermal behaviour from single oxalates. Despite a simple grinding procedure, sintered BaCe0.9Y0.1O3-δ pellets (1400 °C, 48 h) presented 90.7% of relative density and preliminary impedance measurements showed an overall conductivity of around 2 × 10-4 S cm-1 at 320 °C.

AB - An oxalate precipitation route is proposed for the synthesis of BaCe1-xYxO3 (x = 0 and 0.1) after calcination at 1100 °C. The precipitation temperature (70 °C) was a determinant parameter for producing a pure perovskite phase after calcination at 1100 °C for 1 h. TG/DTA measurements showed that the co-precipitated (Ba, Ce and Y) oxalate had a different thermal behaviour from single oxalates. Despite a simple grinding procedure, sintered BaCe0.9Y0.1O3-δ pellets (1400 °C, 48 h) presented 90.7% of relative density and preliminary impedance measurements showed an overall conductivity of around 2 × 10-4 S cm-1 at 320 °C.

KW - Fuel cells

KW - Membranes

KW - Perovskites

KW - Powders-chemical preparation

UR - https://www.scopus.com/pages/publications/34347360769

U2 - 10.1016/j.jeurceramsoc.2007.02.012

DO - 10.1016/j.jeurceramsoc.2007.02.012

M3 - Article

AN - SCOPUS:34347360769

SN - 0955-2219

VL - 27

SP - 3597

EP - 3600

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 13-15