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Synthesis and characterization of double-doped bismuth oxide electrolytes for lower temperature SOFC application

Title
Synthesis and characterization of double-doped bismuth oxide electrolytes for lower temperature SOFC application
Authors
Rutha, A.L.Lee, K.T.Clitesa, M.C.Wachsmana, E.D.
DGIST Authors
Lee, K.T.
Issue Date
2014
Citation
Symposium on Solid State Ionic Devices 10 - 2014 ECS and SMEQ Joint International Meeting, 64(2), 135-141
Type
Conference
Article Type
Conference Paper
ISBN
9780000000000
ISSN
1938-5862
Abstract
High ionic conductivity double-doped bismuth oxide materials were synthesized using solid state and wet chemical methods to achieve lower total doping while maintaining phase stability. The ionic conductivity for Dy-Gd stabilized bismuth oxide (DGSB), Dy-W stabilized bismuth oxide (DWSB), and Dy-Ce stabilized bismuth oxide (DCSB) at 650°C are measured to be 0.94 S/cm, 0.53 S/cm, and 0.45 S/cm respectively. The nanopowder forms were incorporated into a bilayer electrolyte and successfully sintered dense onto a prefabricated anode and single electrolyte substrate. DGSB achieved the highest power density of 1.31 W/cm2, twice that of the single-doped erbium stabilized bismuth oxide case with the same configuration (0.60 W/cm2) as a result in the improvement in conductivity over the single-doped case. Copyright © 2014 by The Electrochemical Society All rights reserved.
URI
http://hdl.handle.net/20.500.11750/3751
DOI
10.1149/06402.0135ecst
Publisher
Electrochemical Society Inc.
Related Researcher
  • Author Lee, Kang-Taek AECSL(Advanced Energy Conversion and Storage Lab)
  • Research Interests Advanced energy conversion and storage systems; Solid-state Electrochemical Energy Devices; All solid-state batteries; low-temperature solid oxide fuel cells(SOFCs); 신 에너지 변환 및 저장 시스템; Solid-state Electrochemical Energy Devices; 차세대 전고체 이차전지(solid-state batteries) 및 저온화 고체산화물 연료전지(LT-SOFCs)
Files:
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Collection:
Department of Energy Science and EngineeringAECSL(Advanced Energy Conversion and Storage Lab)2. Conference Papers


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