Cited 0 time in webofscience Cited 0 time in scopus

Boosting the Performance of Solid Oxide Electrolysis CellsviaIncorporation of Gd(3+)and Nd(3+)Double-doped Ceria

Title
Boosting the Performance of Solid Oxide Electrolysis CellsviaIncorporation of Gd(3+)and Nd(3+)Double-doped Ceria
Authors
Park, Jeong HwaKim, Kyeong JoonJung, Chan HoonJeong, Woo YoungShin, Hong RimHong, J. -E.Lee, Kang Taek
DGIST Authors
Park, Jeong Hwa; Kim, Kyeong Joon; Jung, Chan Hoon; Jeong, Woo Young; Shin, Hong Rim; Hong, J. -E.; Lee, Kang Taek
Issue Date
2020-12
Citation
Fuel Cells, 20(6), 712-717
Type
Article
Article Type
Article
Author Keywords
Double-doping CeriaHydrogen ProductionOxygen ElectrodeOxygen Evolution ReactionSolid Oxide Electrolysis Cell
Keywords
GADOLINIUM-DOPED CERIAHYDROGEN-PRODUCTIONOXYGEN ELECTRODESAIR ELECTRODECONDUCTIVITYCELLSNANOPARTICLESOPTIMIZATIONRELAXATIONCATHODES
ISSN
1615-6846
Abstract
The solid oxide electrolysis cell (SOEC) and its developement are in an increasing focus, because of its high efficiency and eco-friendliness in storing energy by converting electrical energy into hydrogen. Recently, research has been conducted to decrease the operation temperature of SOECs below 750 degrees C to overcome high system costs and rapid degradation rate at high operation temperatures. Although La0.6Sr0.4Co0.2Fe0.8O3-delta(LSCF) is a promising oxygen electrode for SOEC, when the operating temperature is reduced, the reaction kinetics of the LSCF oxygen electrode is significantly decreased due to high activation energy of the oxygen ion transport. To address this issue, we developed a composite oxygen electrode of LSCF combined with Gd and Nd double doped ceria (GNDC). Due to excellent oxygen ion transport nature of GNDC, the SOEC with the LSCF-GNDC oxygen electrode yielded impressive current density of similar to 1,174 mA cm(-2)at 1.3 V at 750 degrees C along with excellent stability. These results demonstrated that the novel LSCF-GNDC composite is promising as an efficient and durable oxygen electrode for SOEC applications.
URI
http://hdl.handle.net/20.500.11750/12850
DOI
10.1002/fuce.201900248
Publisher
John Wiley & Sons Ltd.
Files:
There are no files associated with this item.
Collection:
Department of Energy Science and EngineeringAECSL(Advanced Energy Conversion and Storage Lab)1. Journal Articles


qrcode mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE