Coelectrolysis of steam and CO2 in a solid oxide electrolysis cell with ceramic composite electrodes

Authors
Yoon, Sung-EunSong, Sang-HyunChoi, JaewonAhn, Jae-YeongKim, Byung-KookPark, Jong-Sung
Issue Date
2014-04-04
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.39, no.11, pp.5497 - 5504
Abstract
Lanthanum strontium vanadate (LSV) was used as the cathode of a solid oxide electrolysis cell (SOEC) containing a yttria-stabilized zirconia (YSZ) electrolyte for the coelectrolysis of steam and CO2. Pd and CeO2 were added to the composite cathode, and the electrolysis mechanism in the coelectrolysis mode changed according to the type of catalyst in the LSV/YSZ composite cathode. The effect of steam on the coelectrolysis performance was investigated by varying the steam vapor pressure. The electrolysis performance under dry CO2 without steam degraded with time under electrochemical reduction conditions owing to the deactivation of catalysts. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
Keywords
SULFUR TOLERANCE; CARBON-DIOXIDE; STABILITY; ANODE; FUELS; WATER; H2O; NI; SULFUR TOLERANCE; CARBON-DIOXIDE; STABILITY; ANODE; FUELS; WATER; H2O; NI; Coelectrolysis; Solid oxide electrolysis cell; Catalyst; Lanthanum strontium vanadate
ISSN
0360-3199
URI
https://pubs.kist.re.kr/handle/201004/126887
DOI
10.1016/j.ijhydene.2014.01.124
Appears in Collections:
KIST Article > 2014
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