Synthesis and characterization of electrolyte-grade 10%Gd-doped ceria thin film/ceramic substrate structures for solid oxide fuel cells

TY - JOUR

T1 - Synthesis and characterization of electrolyte-grade 10%Gd-doped ceria thin film/ceramic substrate structures for solid oxide fuel cells

AU - Chourashiya, M. G.

AU - Bharadwaj, S. R.

AU - Jadhav, L. D.

N1 - Funding Information: The authors are very much thankful to DRDO, New Delhi for their financial support. We would like to acknowledge Dr. D. Phase, UGC-DAE IUC Indore for extending SEM characterization facilities to us and to Mr. Ahire, Sr. Engineer, UGC-DAE IUC Indore for his co-operation during the SEM characterizations. Dr. M. G. Chourashiya is thankful to CSIR, New Delhi for a senior research fellowship.

PY - 2010/11/1

Y1 - 2010/11/1

N2 - In the present research, spray pyrolysis technique is employed to synthesize 10%Gd-doped ceria (GDC) thin films on ceramic substrates with an intention to use the "film/substrate" structure in solid oxide fuel cells. GDC films deposited on GDC substrate showed enhanced crystallite formation. In case of NiO-GDC composite substrate, the thickness of film was higher (∼ 13 μm) as compared to the film thickness on GDC substrate (∼ 2 μm). The relative density of the films deposited on both the substrates was of the order of 95%. The impedance measurements revealed that ionic conductivity of GDC/NiO-GDC structure was of the order of 0.10 S/cm at 500 °C, which is a desirable property for its prospective application.

AB - In the present research, spray pyrolysis technique is employed to synthesize 10%Gd-doped ceria (GDC) thin films on ceramic substrates with an intention to use the "film/substrate" structure in solid oxide fuel cells. GDC films deposited on GDC substrate showed enhanced crystallite formation. In case of NiO-GDC composite substrate, the thickness of film was higher (∼ 13 μm) as compared to the film thickness on GDC substrate (∼ 2 μm). The relative density of the films deposited on both the substrates was of the order of 95%. The impedance measurements revealed that ionic conductivity of GDC/NiO-GDC structure was of the order of 0.10 S/cm at 500 °C, which is a desirable property for its prospective application.

KW - 10%Gd-doped ceria

KW - Ceramic thin films

KW - Phase-contacts

KW - Solid oxide fuel cell

KW - Spray pyrolysis

UR - http://www.scopus.com/inward/record.url?scp=77958456555&partnerID=8YFLogxK

U2 - 10.1016/j.tsf.2010.08.110

DO - 10.1016/j.tsf.2010.08.110

M3 - 文章

AN - SCOPUS:77958456555

SN - 0040-6090

VL - 519

SP - 650

EP - 657

JO - Thin Solid Films

JF - Thin Solid Films

IS - 2

ER -