TY - JOUR
T1 - Atomic layer deposition of GDC cathodic functional thin films for oxide ion incorporation enhancement
AU - Yang, Hwichul
AU - Lee, Hojae
AU - Lim, Yonghyun
AU - Kim, Young Beom
N1 - Publisher Copyright:
© 2020 American Ceramic Society (ACERS)
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2021/1
Y1 - 2021/1
N2 - In this paper, we report successful fabrication of a gadolinia-doped ceria (GDC) thin film using atomic layer deposition (ALD) for improving the performance of solid oxide fuel cells (SOFCs). By varying the deposition conditions and adjusting the configuration of the ALD supercycle, the doping ratio of ALD GDC was controlled. The morphology, crystallinity, and chemical composition of ALD GDC thin films were analyzed. ALD GDC showed different surface chemistry, including oxidation states, at different doping ratios. The application of ALD GDC in a SOFC led to an output power density enhancement greater than 2.5 times. With an anodic aluminum oxide (AAO) porous support structure, an ALD GDC thin film SOFC (TF-SOFC) showed a high power density of 288.24 mW/cm2 at an operating temperature of 450°C.
AB - In this paper, we report successful fabrication of a gadolinia-doped ceria (GDC) thin film using atomic layer deposition (ALD) for improving the performance of solid oxide fuel cells (SOFCs). By varying the deposition conditions and adjusting the configuration of the ALD supercycle, the doping ratio of ALD GDC was controlled. The morphology, crystallinity, and chemical composition of ALD GDC thin films were analyzed. ALD GDC showed different surface chemistry, including oxidation states, at different doping ratios. The application of ALD GDC in a SOFC led to an output power density enhancement greater than 2.5 times. With an anodic aluminum oxide (AAO) porous support structure, an ALD GDC thin film SOFC (TF-SOFC) showed a high power density of 288.24 mW/cm2 at an operating temperature of 450°C.
KW - Gadolinia-doped ceria
KW - atomic layer deposition
KW - functional interlayer
KW - low-temperature solid oxide fuel cells
KW - oxide ion incorporation
UR - http://www.scopus.com/inward/record.url?scp=85090954849&partnerID=8YFLogxK
U2 - 10.1111/jace.17457
DO - 10.1111/jace.17457
M3 - Article
AN - SCOPUS:85090954849
VL - 104
SP - 86
EP - 95
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
SN - 0002-7820
IS - 1
ER -