INFLUENCE OF SINTERING TEMPERATURE ON NiO-SDCC ANODE FOR LOW-TEMPERATURE SOLID OXIDE FUEL CELLS (LT-SOFCs)
The effects of sintering temperature on the microstructural and physical properties of NiO-SDCC anode pellets are evaluated in this study. Composite powders of NiO-SDCC (nickel oxide, samarium-doped ceria, Sm0.2Ce0.8O1.9) mixed with binary carbonates (67 mol% Li₂CO₃ and 33 mol% Na₂CO₃) was prepared,...
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doaj-b0b5c900250c455d84af8ef43756914c2020-11-24T23:22:53ZengUniversity of Chemistry and Technology, PragueCeramics-Silikáty0862-54681804-58472016-10-0160431732310.13168/cs.2016.004710.13168/cs.2016.0047.20170104115006INFLUENCE OF SINTERING TEMPERATURE ON NiO-SDCC ANODE FOR LOW-TEMPERATURE SOLID OXIDE FUEL CELLS (LT-SOFCs)Lily Siong Mahmud0Somalu Mahendra Rao1 Fuel Cell Institute, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia Fuel Cell Institute, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia The effects of sintering temperature on the microstructural and physical properties of NiO-SDCC anode pellets are evaluated in this study. Composite powders of NiO-SDCC (nickel oxide, samarium-doped ceria, Sm0.2Ce0.8O1.9) mixed with binary carbonates (67 mol% Li₂CO₃ and 33 mol% Na₂CO₃) was prepared, ball-milled, and oven-dried. Carbon black and polyethylene glycol were added to the NiO-SDCC powders as pore former and binder, respectively, to fabricate NiO-SDCC pellets. This mixture was then pressed onto a cylindrical mold under a pressure of 32 MPa. The pellets were subsequently sintered at 600, 700, 800, 900 and 1000 °C for 2 h. Phase transformation, particle size, morphology, and specific surface area (SBET) of the NiO-SDCC composite powder were investigated. Porosity and microstructure of the NiO-SDCC anode pellets were then evaluated after sintering. Results showed that the porosities of the NiO-SDCC pellets decreased as the sintering temperature increased. The increments of sintering temperature reduced the porosity of the pellets, but NiO-SDCC pellets sintered at 800 °C exhibited an acceptable porosity of 32.60%. Furthermore, surface images showed that the microstructures of sintered pellets at 800 °C were well-bonded and kept a uniform particle size distribution. http://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=591 SOFCs Composite NiO-SDCC anode Microstructures Sintering |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Lily Siong Mahmud Somalu Mahendra Rao |
spellingShingle |
Lily Siong Mahmud Somalu Mahendra Rao INFLUENCE OF SINTERING TEMPERATURE ON NiO-SDCC ANODE FOR LOW-TEMPERATURE SOLID OXIDE FUEL CELLS (LT-SOFCs) Ceramics-Silikáty SOFCs Composite NiO-SDCC anode Microstructures Sintering |
author_facet |
Lily Siong Mahmud Somalu Mahendra Rao |
author_sort |
Lily Siong Mahmud |
title |
INFLUENCE OF SINTERING TEMPERATURE ON NiO-SDCC ANODE FOR LOW-TEMPERATURE SOLID OXIDE FUEL CELLS (LT-SOFCs) |
title_short |
INFLUENCE OF SINTERING TEMPERATURE ON NiO-SDCC ANODE FOR LOW-TEMPERATURE SOLID OXIDE FUEL CELLS (LT-SOFCs) |
title_full |
INFLUENCE OF SINTERING TEMPERATURE ON NiO-SDCC ANODE FOR LOW-TEMPERATURE SOLID OXIDE FUEL CELLS (LT-SOFCs) |
title_fullStr |
INFLUENCE OF SINTERING TEMPERATURE ON NiO-SDCC ANODE FOR LOW-TEMPERATURE SOLID OXIDE FUEL CELLS (LT-SOFCs) |
title_full_unstemmed |
INFLUENCE OF SINTERING TEMPERATURE ON NiO-SDCC ANODE FOR LOW-TEMPERATURE SOLID OXIDE FUEL CELLS (LT-SOFCs) |
title_sort |
influence of sintering temperature on nio-sdcc anode for low-temperature solid oxide fuel cells (lt-sofcs) |
publisher |
University of Chemistry and Technology, Prague |
series |
Ceramics-Silikáty |
issn |
0862-5468 1804-5847 |
publishDate |
2016-10-01 |
description |
The effects of sintering temperature on the microstructural and physical properties of NiO-SDCC anode pellets are evaluated in this study. Composite powders of NiO-SDCC (nickel oxide, samarium-doped ceria, Sm0.2Ce0.8O1.9) mixed with binary carbonates (67 mol% Li₂CO₃ and 33 mol% Na₂CO₃) was prepared, ball-milled, and oven-dried. Carbon black and polyethylene glycol were added to the NiO-SDCC powders as pore former and binder, respectively, to fabricate NiO-SDCC pellets. This mixture was then pressed onto a cylindrical mold under a pressure of 32 MPa. The pellets were subsequently sintered at 600, 700, 800, 900 and 1000 °C for 2 h. Phase transformation, particle size, morphology, and specific surface area (SBET) of the NiO-SDCC composite powder were investigated. Porosity and microstructure of the NiO-SDCC anode pellets were then evaluated after sintering. Results showed that the porosities of the NiO-SDCC pellets decreased as the sintering temperature increased. The increments of sintering temperature reduced the porosity of the pellets, but NiO-SDCC pellets sintered at 800 °C exhibited an acceptable porosity of 32.60%. Furthermore, surface images showed that the microstructures of sintered pellets at 800 °C were well-bonded and kept a uniform particle size distribution. |
topic |
SOFCs Composite NiO-SDCC anode Microstructures Sintering |
url |
http://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=591
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work_keys_str_mv |
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