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

Abstrakt

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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Autorzy (7)

Aleksandra Dorota Mielewczyk-Gryń (dawniej: 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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Wersja publikacji: Accepted albo Published Version
DOI:: Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1039/D2CP05265B
Licencja: Copyright (2023 Royal Society of Chemistry)

Słowa kluczowe

PRZEWODNIKI PROTONOWE, SOFC, PCFC, CZUJNIKI GAZOWE

Informacje szczegółowe

Kategoria:

Publikacja w czasopiśmie

Typ:

artykuły w czasopismach

Opublikowano w:

PHYSICAL CHEMISTRY CHEMICAL PHYSICS nr 25, strony 9208 - 9215,
ISSN: 1463-9076

Język:

angielski

Rok wydania:

2023

Opis bibliograficzny:

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

DOI: