Water uptake and energetics of the formation of barium zirconate based multicomponent oxides

Aleksandra Dorota Mielewczyk-Gryń; Tamilarasan Subramani; Daniel Jaworski; Kristina Lilova; Wojciech Skubida; Alexandra Navrotsky; Maria Gazda

doi:10.1039/d2cp05265b

Water uptake and energetics of the formation of barium zirconate based multicomponent oxides

Abstract

A group of multi-component oxides based on BaZrO3 have been prepared using a solid-state reaction method and examined in terms of their water uptake and thermodynamics of formation. Depending on the type and amount of acceptor substitution, the synthesized compounds exhibit various proton defect concentrations, reaching up to 0.2 mol/mol for a compound containing 10 different elements in the B-sublattice, where 50% of them are acceptors. For the most promising materials, van’t Hoff plots were created and the enthalpies and entropies of hydration were calculated. At higher temperatures, these parameters do not differ from the values for the reference yttrium doped barium zirconate. However, at lower temperatures they are more negative, indicating a more exothermic process of proton incorporation.

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Authors (7)

Aleksandra Dorota Mielewczyk-Gryń (formerly: Aleksandra Mielewczyk-Gryń) dr hab. inż.
Tamilarasan Subramani
Daniel Jaworski
Kristina Lilova
Wojciech Skubida dr inż.
Alexandra Navrotsky
Maria Gazda prof. dr hab. inż.

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Publication version: Accepted or Published Version
DOI:: Digital Object Identifier (open in new tab) 10.1039/D2CP05265B
License: Copyright (2023 Royal Society of Chemistry)

Keywords

PRZEWODNIKI PROTONOWE, SOFC, PCFC, CZUJNIKI GAZOWE

Details

Category:

Articles

Type:

artykuły w czasopismach

Published in:

PHYSICAL CHEMISTRY CHEMICAL PHYSICS no. 25, pages 9208 - 9215,
ISSN: 1463-9076

Language:

English

Publication year:

2023

Bibliographic description:

Mielewczyk-Gryń A., Subramani T., Jaworski D., Lilova K., Skubida W., Navrotsky A., Gazda M.: Water uptake and energetics of the formation of barium zirconate based multicomponent oxides// PHYSICAL CHEMISTRY CHEMICAL PHYSICS -Vol. 25,iss. 13 (2023), s.9208-9215

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