Maintaining Pronounced Proton Transportation of Solid Oxides Prepared with a Sintering Additive | Sciact - CRIS-system of Boreskov Institute of Catalysis

Maintaining Pronounced Proton Transportation of Solid Oxides Prepared with a Sintering Additive Full article

Journal

Journal of Materials Chemistry A, Materials for Energy and Sustainability
ISSN: 2050-7488 , E-ISSN: 2050-7496

Output data

Year: 2021, Volume: 9, Pages: 14553–14565 Pages count : 13 DOI: 10.1039/d1ta03399a

Tags

DOPED BARIUM ZIRCONATE; CERAMIC FUEL-CELLS; CONDUCTING ELECTROLYTE; CHEMICAL-STABILITY; HYDRATION; PERFORMANCE; MECHANISM; RECOVERY; SURFACE; BaCeO3

Authors

Mineev Alexey M. ^1,2 , Zvonareva Inna A. ^1,3 , Medvedev Dmitry A. ^1,3 , Shao Zongping ^4,5

Affiliations

1	Laboratory of Electrochemical Devices Based on Solid Oxide Proton Electrolytes, Institute of High Temperature Electrochemistry, 620137 Yekaterinburg, Russia
2	Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia
3	Ural Federal University, 620002 Yekaterinburg, Russia
4	State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
5	WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, Western Australia 6102, Australia

Funding (1)

Russian Foundation for Basic Research

20-43-660003 (АААА-А19-119122590016-5)

Proton-conducting electrolytes (PCEs) have led to significant advances in the fields of solid-state ionics, energy conversion and high-temperature electrochemistry, providing the basis of various solid oxide devices that demonstrate outstanding performance and efficiency. Although the proton transport of PCEs has an undeniable advantage over the oxygen-ion transport of conventional complex oxide approaches, the refractory nature of these materials presents significant challenges for their fabrication in the form of thin films. In order to mitigate sintering conditions for multilayered PCE structures (single cells), various additives have been used. However, other fundamental and technological issues arise in this connection, including the localization of such introduced impurities near grain boundaries resulting in blocked proton transportation. The present article reports a general strategy for effectively sintering PCE-based refractory materials while maintaining their hydrogen transportation, using a BaSn0.8Sc0.2O3−δ model compound due to its significant water uptake even at high levels of acceptor doping. This strategy, as shown in a comprehensive analysis of corresponding experimental results, proposes a CuO sintering additive in low amounts, sufficient for achieving a dense state with no adverse effects on protonic conduction. The reported findings can be applied for scalable preparation of gas tight PCEs at reduced sintering temperatures for various electrochemical purposes.

Mineev A.M. , Zvonareva I.A. , Medvedev D.A. , Shao Z.
Maintaining Pronounced Proton Transportation of Solid Oxides Prepared with a Sintering Additive
Journal of Materials Chemistry A, Materials for Energy and Sustainability. 2021. V.9. P.14553–14565. DOI: 10.1039/d1ta03399a WOS Scopus РИНЦ AN OpenAlex

Submitted:	Apr 23, 2021
Accepted:	May 29, 2021
Published online:	Jun 2, 2021
Published print:	Jul 7, 2021

Web of science:	WOS:000662994300001
Scopus:	2-s2.0-85108873023
Elibrary:	46892305
Chemical Abstracts:	2021:1207494
OpenAlex:	W3172559243

DB	Citing
Web of science	15
Scopus	17
Elibrary	14
OpenAlex	16