10.6084/m9.figshare.6151757.v1
Andarair Gomes dos Santos
Andarair Gomes dos
Santos
Francisco Klebson Gomes dos Santos
Francisco Klebson Gomes
dos Santos
Daniel Araujo de Macedo
Daniel Araujo
de Macedo
Maxwell Ferreira Lobato
Maxwell Ferreira
Lobato
Ernani Dias da Silva Filho
Ernani Dias
da Silva Filho
Angélica Belchior Vital
Angélica Belchior
Vital
Carlson Pereira de Souza
Carlson Pereira
de Souza
Synthesis of the Perovskite-Type BaCe0.8Pr0.05Cu0.15O3-δ via EDTA-Citrate
SciELO journals
2018
Perovskite
copper
BaCe0.8Pr0.05Cu0.15O3-δ
EDTA-Citrate method
2018-04-18 02:50:52
Dataset
https://scielo.figshare.com/articles/dataset/Synthesis_of_the_Perovskite-Type_BaCe0_8Pr0_05Cu0_15O3-_via_EDTA-Citrate/6151757
<div><p>BaCeO3-based ceramics are ionic and electronic conductors that can be applied to oxygen sensors, solid oxide fuel cells and oxygen permeable membranes. However, the low chemical stability at high temperatures of these materials motivates studies involving doping of A and/or B sites of the perovskite structure. In this context, the present work aimed to synthesize a new BaCe0.8Pr0.05Cu0.15O3-δ material using the chemical route of complexation which combines EDTA-Citrate with pH variation. The powders obtained at pH 3 or 11 and calcined up to 900 ºC are thermally unstable. The cubic perovskite BaCe0.8Pr0.05Cu0.15O3-δ with crystallite size between 99.4 nm and 131.6 nm was obtained along with barium carbonate traces. In the powders calcined at 1000 ºC the pH increase decreases the amount of barium carbonate (17.3% to pH 3, 3.4% to pH 7 and 1.8% to pH 11), but increases the size of grains with irregular shapes.</p></div>