Enhanced performance of a Ba0.5Sr0.5Co0.8Fe0.2O3−δ based oxygen electrode for solid oxide electrolysis cells by decorating with Ag particles
Open Access
- 1 March 2021
- journal article
- research article
- Published by IOP Publishing in Materials Research Express
- Vol. 8 (3), 035502
- https://doi.org/10.1088/2053-1591/abeb49
Abstract
To improve the performance of a Ba0.5Sr0.5Co0.8Fe00.2O3−δ (BSCF) oxygen electrode in a solid-oxide electrolysis cell (SOEC), Ag particles were added to increase its conductivity and thus its electrochemical performance. The experiment results showed that the polarization resistance of Ag decorated BSCF-SDC oxygen electrode with the appropriate amount of Ag particles was lower than that of BSCF-SDC oxygen electrode. Especially, the polarization resistance of Ag decorated BSCF-SDC oxygen electrode with 1.3 wt.% Ag particles (noted as 1.3Ag-BSCF-SDC) was as low as 0.006 Ω cm2. The 1.3Ag-BSCF-SDC oxygen electrode showed good stability in the short-term electrolysis durability test. The electrolysis cell based on 1.3Ag-BSCF-SDC oxygen electrode showed better performance than that based on BSCF-SDC oxygen electrode. Therefore, this method is an effective way to improve the performance of a BSCF-based oxygen electrode for an SOEC.Keywords
Funding Information
- Project of Shenyang Science and Technology Bureau (RC200213)
- Natural Science Foundation of Liaoning Province (2019JH3/30100036)
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