Microstructure characterisation of Ag2O3-Bi 2O3 composite cathodes for Intermediate Temperature Solid Oxide Fuel Cells (IT-SOFCs)

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Porous Ag-Bi2O3 composite cathodes on stainless steel (SS) substrate, an excellent mixed-ionic conductor that can be used as cathode material for the intermediate temperature solid oxide fuel cell (IT-SOFC) has been developed using the slurry painting method. Characterisation of the composite cathode includes the thermal analysis, morphology, and porosity of the porous cathode. Thermal analysis of the dried slurry was conducted in order to determine the heating schedule for eliminating the organic components using thermogravimetry analysis (TGA) and differential scanning calorimetry (DSC). The TGA and DSC analyses confirmed the organic vehicle was fully decomposed below 418°C and the formation of composite cathode oxide phase took place beyond 600°C. The microstructure of the thermally treated cathode was analysed using SEM and XRD. The SEM results showed that the grain size of the cathode increased with the increase of temperature during thermal treatment and the X-ray diffraction (XRD) analyses confirmed the presence of δ-Bi 2O3 phase on the cathode. Porosity was obtained using the Archimedes method. The Ag2O3-Bi2O3 cathode on stainless steel substrates was found to have a porosity of 53%, 51%, 39% and 28% upon 1, 2, 3, and 4 coatings, respectively, as well as thermal treatment at 800°C for 1 hour.

Original languageEnglish
Title of host publicationKey Engineering Materials
Pages97-102
Number of pages6
Volume471-472
DOIs
Publication statusPublished - 2011
Event8th International Conference on Composite Science and Technology, ICCST8 - Kuala Lumpur
Duration: 22 Mar 201124 Mar 2011

Publication series

NameKey Engineering Materials
Volume471-472
ISSN (Print)10139826

Other

Other8th International Conference on Composite Science and Technology, ICCST8
CityKuala Lumpur
Period22/3/1124/3/11

Fingerprint

Solid oxide fuel cells (SOFC)
Cathodes
Microstructure
Composite materials
Temperature
Porosity
Stainless Steel
Thermoanalysis
Thermogravimetric analysis
Differential scanning calorimetry
Stainless steel
Heat treatment
X ray diffraction
Scanning electron microscopy
Painting
Substrates
Oxides
Heating
Coatings

Keywords

  • Bismuth oxide
  • Porous composite cathode
  • Slurry painting method

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Microstructure characterisation of Ag2O3-Bi 2O3 composite cathodes for Intermediate Temperature Solid Oxide Fuel Cells (IT-SOFCs). / Dedikarni, ; Muchtar, Andanastuti; Muhamad, Norhamidi; Wan Daud, Wan Ramli.

Key Engineering Materials. Vol. 471-472 2011. p. 97-102 (Key Engineering Materials; Vol. 471-472).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Dedikarni, , Muchtar, A, Muhamad, N & Wan Daud, WR 2011, Microstructure characterisation of Ag2O3-Bi 2O3 composite cathodes for Intermediate Temperature Solid Oxide Fuel Cells (IT-SOFCs). in Key Engineering Materials. vol. 471-472, Key Engineering Materials, vol. 471-472, pp. 97-102, 8th International Conference on Composite Science and Technology, ICCST8, Kuala Lumpur, 22/3/11. https://doi.org/10.4028/www.scientific.net/KEM.471-472.97
@inproceedings{6ebedf35c8c44611b4a6020390b4e4fb,
title = "Microstructure characterisation of Ag2O3-Bi 2O3 composite cathodes for Intermediate Temperature Solid Oxide Fuel Cells (IT-SOFCs)",
abstract = "Porous Ag-Bi2O3 composite cathodes on stainless steel (SS) substrate, an excellent mixed-ionic conductor that can be used as cathode material for the intermediate temperature solid oxide fuel cell (IT-SOFC) has been developed using the slurry painting method. Characterisation of the composite cathode includes the thermal analysis, morphology, and porosity of the porous cathode. Thermal analysis of the dried slurry was conducted in order to determine the heating schedule for eliminating the organic components using thermogravimetry analysis (TGA) and differential scanning calorimetry (DSC). The TGA and DSC analyses confirmed the organic vehicle was fully decomposed below 418°C and the formation of composite cathode oxide phase took place beyond 600°C. The microstructure of the thermally treated cathode was analysed using SEM and XRD. The SEM results showed that the grain size of the cathode increased with the increase of temperature during thermal treatment and the X-ray diffraction (XRD) analyses confirmed the presence of δ-Bi 2O3 phase on the cathode. Porosity was obtained using the Archimedes method. The Ag2O3-Bi2O3 cathode on stainless steel substrates was found to have a porosity of 53{\%}, 51{\%}, 39{\%} and 28{\%} upon 1, 2, 3, and 4 coatings, respectively, as well as thermal treatment at 800°C for 1 hour.",
keywords = "Bismuth oxide, Porous composite cathode, Slurry painting method",
author = "Dedikarni and Andanastuti Muchtar and Norhamidi Muhamad and {Wan Daud}, {Wan Ramli}",
year = "2011",
doi = "10.4028/www.scientific.net/KEM.471-472.97",
language = "English",
isbn = "9783037850596",
volume = "471-472",
series = "Key Engineering Materials",
pages = "97--102",
booktitle = "Key Engineering Materials",

}

TY - GEN

T1 - Microstructure characterisation of Ag2O3-Bi 2O3 composite cathodes for Intermediate Temperature Solid Oxide Fuel Cells (IT-SOFCs)

AU - Dedikarni,

AU - Muchtar, Andanastuti

AU - Muhamad, Norhamidi

AU - Wan Daud, Wan Ramli

PY - 2011

Y1 - 2011

N2 - Porous Ag-Bi2O3 composite cathodes on stainless steel (SS) substrate, an excellent mixed-ionic conductor that can be used as cathode material for the intermediate temperature solid oxide fuel cell (IT-SOFC) has been developed using the slurry painting method. Characterisation of the composite cathode includes the thermal analysis, morphology, and porosity of the porous cathode. Thermal analysis of the dried slurry was conducted in order to determine the heating schedule for eliminating the organic components using thermogravimetry analysis (TGA) and differential scanning calorimetry (DSC). The TGA and DSC analyses confirmed the organic vehicle was fully decomposed below 418°C and the formation of composite cathode oxide phase took place beyond 600°C. The microstructure of the thermally treated cathode was analysed using SEM and XRD. The SEM results showed that the grain size of the cathode increased with the increase of temperature during thermal treatment and the X-ray diffraction (XRD) analyses confirmed the presence of δ-Bi 2O3 phase on the cathode. Porosity was obtained using the Archimedes method. The Ag2O3-Bi2O3 cathode on stainless steel substrates was found to have a porosity of 53%, 51%, 39% and 28% upon 1, 2, 3, and 4 coatings, respectively, as well as thermal treatment at 800°C for 1 hour.

AB - Porous Ag-Bi2O3 composite cathodes on stainless steel (SS) substrate, an excellent mixed-ionic conductor that can be used as cathode material for the intermediate temperature solid oxide fuel cell (IT-SOFC) has been developed using the slurry painting method. Characterisation of the composite cathode includes the thermal analysis, morphology, and porosity of the porous cathode. Thermal analysis of the dried slurry was conducted in order to determine the heating schedule for eliminating the organic components using thermogravimetry analysis (TGA) and differential scanning calorimetry (DSC). The TGA and DSC analyses confirmed the organic vehicle was fully decomposed below 418°C and the formation of composite cathode oxide phase took place beyond 600°C. The microstructure of the thermally treated cathode was analysed using SEM and XRD. The SEM results showed that the grain size of the cathode increased with the increase of temperature during thermal treatment and the X-ray diffraction (XRD) analyses confirmed the presence of δ-Bi 2O3 phase on the cathode. Porosity was obtained using the Archimedes method. The Ag2O3-Bi2O3 cathode on stainless steel substrates was found to have a porosity of 53%, 51%, 39% and 28% upon 1, 2, 3, and 4 coatings, respectively, as well as thermal treatment at 800°C for 1 hour.

KW - Bismuth oxide

KW - Porous composite cathode

KW - Slurry painting method

UR - http://www.scopus.com/inward/record.url?scp=79952913769&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79952913769&partnerID=8YFLogxK

U2 - 10.4028/www.scientific.net/KEM.471-472.97

DO - 10.4028/www.scientific.net/KEM.471-472.97

M3 - Conference contribution

SN - 9783037850596

VL - 471-472

T3 - Key Engineering Materials

SP - 97

EP - 102

BT - Key Engineering Materials

ER -