Hydration of Proton-conducting BaCe0.9Y0.1O3−δ by Decoupled Mass Transport

Abstract Mass relaxation profile of a perovskite-type oxide, BaCe0.9Y0.1O3−δ, was studied to understand decoupled diffusion of oxygen and hydrogen species during hydration/dehydration. The mass relaxation measurements are performed by thermogravimetric analysis (TGA) under various humidity condition...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Dae-Kwang Lim, Ha-Ni Im, Sun-Ju Song, Han-Ill Yoo
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a1c81d29877f4fc2a68d89e5fee5b512
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:a1c81d29877f4fc2a68d89e5fee5b512
record_format	dspace
spelling	oai:doaj.org-article:a1c81d29877f4fc2a68d89e5fee5b5122021-12-02T11:40:14ZHydration of Proton-conducting BaCe0.9Y0.1O3−δ by Decoupled Mass Transport10.1038/s41598-017-00595-w2045-2322https://doaj.org/article/a1c81d29877f4fc2a68d89e5fee5b5122017-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00595-whttps://doaj.org/toc/2045-2322Abstract Mass relaxation profile of a perovskite-type oxide, BaCe0.9Y0.1O3−δ, was studied to understand decoupled diffusion of oxygen and hydrogen species during hydration/dehydration. The mass relaxation measurements are performed by thermogravimetric analysis (TGA) under various humidity conditions (Dry, −3.0 ≤ log(pH2O/atm) ≤ −1.6) at a constant oxygen partial pressure (log(pO2/atm) = −1.00 ± 0.01). The decoupled ions participated in hydration/dehydration reactions were proven to be at different ratios from the result introduced by the 8R m function. The enthalpy and entropy of non-stoichiometric hydration reaction, which considers each ratio of charge-carrier species, were −144.7 ± 3.7 kJ/mol and −147.8 ± 3.2 J/mol · K, respectively.Dae-Kwang LimHa-Ni ImSun-Ju SongHan-Ill YooNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Dae-Kwang Lim Ha-Ni Im Sun-Ju Song Han-Ill Yoo Hydration of Proton-conducting BaCe0.9Y0.1O3−δ by Decoupled Mass Transport
description	Abstract Mass relaxation profile of a perovskite-type oxide, BaCe0.9Y0.1O3−δ, was studied to understand decoupled diffusion of oxygen and hydrogen species during hydration/dehydration. The mass relaxation measurements are performed by thermogravimetric analysis (TGA) under various humidity conditions (Dry, −3.0 ≤ log(pH2O/atm) ≤ −1.6) at a constant oxygen partial pressure (log(pO2/atm) = −1.00 ± 0.01). The decoupled ions participated in hydration/dehydration reactions were proven to be at different ratios from the result introduced by the 8R m function. The enthalpy and entropy of non-stoichiometric hydration reaction, which considers each ratio of charge-carrier species, were −144.7 ± 3.7 kJ/mol and −147.8 ± 3.2 J/mol · K, respectively.
format	article
author	Dae-Kwang Lim Ha-Ni Im Sun-Ju Song Han-Ill Yoo
author_facet	Dae-Kwang Lim Ha-Ni Im Sun-Ju Song Han-Ill Yoo
author_sort	Dae-Kwang Lim
title	Hydration of Proton-conducting BaCe0.9Y0.1O3−δ by Decoupled Mass Transport
title_short	Hydration of Proton-conducting BaCe0.9Y0.1O3−δ by Decoupled Mass Transport
title_full	Hydration of Proton-conducting BaCe0.9Y0.1O3−δ by Decoupled Mass Transport
title_fullStr	Hydration of Proton-conducting BaCe0.9Y0.1O3−δ by Decoupled Mass Transport
title_full_unstemmed	Hydration of Proton-conducting BaCe0.9Y0.1O3−δ by Decoupled Mass Transport
title_sort	hydration of proton-conducting bace0.9y0.1o3−δ by decoupled mass transport
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/a1c81d29877f4fc2a68d89e5fee5b512
work_keys_str_mv	AT daekwanglim hydrationofprotonconductingbace09y01o3dbydecoupledmasstransport AT haniim hydrationofprotonconductingbace09y01o3dbydecoupledmasstransport AT sunjusong hydrationofprotonconductingbace09y01o3dbydecoupledmasstransport AT hanillyoo hydrationofprotonconductingbace09y01o3dbydecoupledmasstransport
_version_	1718395662911930368

Hydration of Proton-conducting BaCe0.9Y0.1O3−δ by Decoupled Mass Transport

Ejemplares similares