Electrochemical Performance of Solid Oxide Electrolysis Cells with LSCF6428-SDC/SDC Electrode for H2O/CO2High Temperature Co-Electrolysis

Autor:	Younghee Lee, Jungmin Lee, Young-Sung Yoo, Min-Ah Park, Sang-Yun Jeon
Rok vydání:	2017
Předmět:	chemistry.chemical_compound Electrolysis Materials science chemistry Chemical engineering law business.industry Electrode Oxide Electrical engineering Electrochemistry business law.invention
Zdroj:	ECS Transactions. 78:3123-3128
ISSN:	1938-5862 1938-6737
DOI:	10.1149/07801.3123ecst
Popis:	High temperature co-electrolysis of H2O/CO2on solid oxide electrolysis cell (SOEC) is one technology to produce syngas using carbon dioxide. In this study, Ni-8YSZ/8YSZ/LSCF6428-SDC button cells were fabricated and the effect of different heat treatment temperatures on the performance of SOEC was investigated. The SOEC with LSCF6428-SDC air electrode, SDC buffer layer, and YSZ-(LSCF- SDC) adhesion layer gave better performance in overall results and the voltage obtained for this SOEC at current density of 0.8 A.cm-1 was from ~ 1.2 V to ~ 1.8 V. Co-electrolysis and the electrochemical performance of the cells were dependent on heat-treatment temperature of the electrode and the buffer layers. To identify the electrochemical processes occurring at the electrodes of SOEC, analysis of the electrochemical impedance (EIS) data was carried out.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa8403c2f6154a2a5b82fe5893ed94e8 https://doi.org/10.1149/07801.3123ecst Zobrazit plný text záznamu