Guidelines for processing of porous barium zirconate-based ceramic electrolytes for electrochemical solid oxide cell applications

Detalhes bibliográficos
Autor(a) principal: Zakharchuk, Kiryl
Data de Publicação: 2022
Outros Autores: Yaremchenko, Aleksey, Kovalevsky, Andrei
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10773/35600
Resumo: Efficient use of barium-containing electrocatalysts for NOx decomposition in electrochemical solid oxide cells requires good chemical compatibility of these materials with the electrolyte in a temperature range 300–600 °C and imply the use of porous electrolytes allowing significant gas flows across the cell. BaZr0.85Y0.15O3 electrolyte has good chemical compatibility with Ba-containing materials and potentially appropriate level of ionic conductivity. This work is focused on guidelines for processing BaZr0.85Y0.15O3 ceramics with cellular porosity (i.e., with spherical pores and with developed gas interconnections), using emulsification of paraffin in water-based ceramic suspension. Porosity of sintered at 1500°C ceramics is practically open and varies in the range of 70-84%, with average pore sizes in the range ~3–30 µm. The type of pore size distribution is close to log-normal. Microstructure, average cell size and level of gas permeability mainly depends on surfactant content, while total porosity is mostly determined by paraffin content.
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spelling Guidelines for processing of porous barium zirconate-based ceramic electrolytes for electrochemical solid oxide cell applicationsCellular ceramicsPorosityEmulsificationTaguchi methodBarium ZirconateEfficient use of barium-containing electrocatalysts for NOx decomposition in electrochemical solid oxide cells requires good chemical compatibility of these materials with the electrolyte in a temperature range 300–600 °C and imply the use of porous electrolytes allowing significant gas flows across the cell. BaZr0.85Y0.15O3 electrolyte has good chemical compatibility with Ba-containing materials and potentially appropriate level of ionic conductivity. This work is focused on guidelines for processing BaZr0.85Y0.15O3 ceramics with cellular porosity (i.e., with spherical pores and with developed gas interconnections), using emulsification of paraffin in water-based ceramic suspension. Porosity of sintered at 1500°C ceramics is practically open and varies in the range of 70-84%, with average pore sizes in the range ~3–30 µm. The type of pore size distribution is close to log-normal. Microstructure, average cell size and level of gas permeability mainly depends on surfactant content, while total porosity is mostly determined by paraffin content.Elsevier2024-09-01T00:00:00Z2022-09-01T00:00:00Z2022-09info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/35600eng0955-221910.1016/j.jeurceramsoc.2022.05.031Zakharchuk, KirylYaremchenko, AlekseyKovalevsky, Andreiinfo:eu-repo/semantics/embargoedAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-05-06T04:41:17Zoai:ria.ua.pt:10773/35600Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-05-06T04:41:17Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Guidelines for processing of porous barium zirconate-based ceramic electrolytes for electrochemical solid oxide cell applications
title Guidelines for processing of porous barium zirconate-based ceramic electrolytes for electrochemical solid oxide cell applications
spellingShingle Guidelines for processing of porous barium zirconate-based ceramic electrolytes for electrochemical solid oxide cell applications
Zakharchuk, Kiryl
Cellular ceramics
Porosity
Emulsification
Taguchi method
Barium Zirconate
title_short Guidelines for processing of porous barium zirconate-based ceramic electrolytes for electrochemical solid oxide cell applications
title_full Guidelines for processing of porous barium zirconate-based ceramic electrolytes for electrochemical solid oxide cell applications
title_fullStr Guidelines for processing of porous barium zirconate-based ceramic electrolytes for electrochemical solid oxide cell applications
title_full_unstemmed Guidelines for processing of porous barium zirconate-based ceramic electrolytes for electrochemical solid oxide cell applications
title_sort Guidelines for processing of porous barium zirconate-based ceramic electrolytes for electrochemical solid oxide cell applications
author Zakharchuk, Kiryl
author_facet Zakharchuk, Kiryl
Yaremchenko, Aleksey
Kovalevsky, Andrei
author_role author
author2 Yaremchenko, Aleksey
Kovalevsky, Andrei
author2_role author
author
dc.contributor.author.fl_str_mv Zakharchuk, Kiryl
Yaremchenko, Aleksey
Kovalevsky, Andrei
dc.subject.por.fl_str_mv Cellular ceramics
Porosity
Emulsification
Taguchi method
Barium Zirconate
topic Cellular ceramics
Porosity
Emulsification
Taguchi method
Barium Zirconate
description Efficient use of barium-containing electrocatalysts for NOx decomposition in electrochemical solid oxide cells requires good chemical compatibility of these materials with the electrolyte in a temperature range 300–600 °C and imply the use of porous electrolytes allowing significant gas flows across the cell. BaZr0.85Y0.15O3 electrolyte has good chemical compatibility with Ba-containing materials and potentially appropriate level of ionic conductivity. This work is focused on guidelines for processing BaZr0.85Y0.15O3 ceramics with cellular porosity (i.e., with spherical pores and with developed gas interconnections), using emulsification of paraffin in water-based ceramic suspension. Porosity of sintered at 1500°C ceramics is practically open and varies in the range of 70-84%, with average pore sizes in the range ~3–30 µm. The type of pore size distribution is close to log-normal. Microstructure, average cell size and level of gas permeability mainly depends on surfactant content, while total porosity is mostly determined by paraffin content.
publishDate 2022
dc.date.none.fl_str_mv 2022-09-01T00:00:00Z
2022-09
2024-09-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10773/35600
url http://hdl.handle.net/10773/35600
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0955-2219
10.1016/j.jeurceramsoc.2022.05.031
dc.rights.driver.fl_str_mv info:eu-repo/semantics/embargoedAccess
eu_rights_str_mv embargoedAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv mluisa.alvim@gmail.com
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