Performance and Durability of Solid Oxide Electrolysis Cells for Syngas Production

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

Performance and durability of Ni/YSZ based solid oxide electrolysis cells (SOECs) for co-electrolysis of H2O and CO2 at high current density were investigated. The cells consist of a Ni/YSZ support, a Ni/YSZ fuel electrode, a YSZ electrolyte, and a LSM-YSZ oxygen electrode. The cell durability was examined at 800°C and electrolysis current density of -1 or -1.5 A/cm2 with 60% reactant (H2O+CO2) utilization. The cell voltage degradation showed a strong dependence on the electrolysis current density, with an overall cell voltage degradation rate of 0.24 mV/h at -1 A/cm2 and of 0.82 mV/h at -1.5 A/cm2. Electrochemical characterization of the cells showed that the degradation was mainly related to the LSM/YSZ electrode when operated at -1 A/cm2, whereas at increased current density (-1.5 A/cm2), both the Ni/YSZ and LSM/YSZ electrodes showed degradation.
Original languageEnglish
JournalE C S Transactions
Volume41
Issue number33
Pages (from-to)77-85
ISSN1938-5862
Publication statusPublished - 2012
Event220th ECS Meeting - Boston, MA, United States
Duration: 9 Oct 201114 Oct 2011
Conference number: 220
http://www.electrochem.org/meetings/biannual/220/220.htm

Conference

Conference220th ECS Meeting
Number220
Country/TerritoryUnited States
CityBoston, MA
Period09/10/201114/10/2011
Internet address

Fingerprint

Dive into the research topics of 'Performance and Durability of Solid Oxide Electrolysis Cells for Syngas Production'. Together they form a unique fingerprint.

Cite this