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Dysprosium and Gadolinium Double Doped Bismuth Oxide Electrolytes for Low Temperature Solid Oxide Fuel Cells

Title
Dysprosium and Gadolinium Double Doped Bismuth Oxide Electrolytes for Low Temperature Solid Oxide Fuel Cells
Authors
Jung, DW[Jung, Doh Won]Lee, KT[Lee, Kang Taek]Wachsman, ED[Wachsman, Eric D.]
DGIST Authors
Lee, KT[Lee, Kang Taek]
Issue Date
2016
Citation
Journal of the Electrochemical Society, 163(5), F411-F415
Type
Article
Article Type
Article
ISSN
0013-4651
Abstract
Herein, we developed a novel double dopant bismuth oxide electrolyte system with dysprosium (Dy) and gadolinium (Gd). The effect of the co-dopants on phase stability and electrical properties was investigated. Phase transformation from cubic to rhombohedral was observed as Gd dopant concentration increased and consequently resulted in conductivity degradation. The stabilization of high temperature cubic phase was achieved with a total dopant concentration as low as similar to 12 mol% with 8 mol% Dy and 4 mol% Gd double dopant composition (8D4GSB) and this composition showed one of the highest total conductivity reported at this low temperature regime. In addition, the long-term stability of DGSB electrolytes was investigated. (C) The Author(s) 2016. Published by ECS. All rights reserved.
URI
http://hdl.handle.net/20.500.11750/2774
DOI
10.1149/2.0951605jes
Publisher
Electrochemical Society
Files:
There are no files associated with this item.
Collection:
Energy Science and EngineeringAECSL(Advanced Energy Conversion and Storage Lab)1. Journal Articles


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