INFLUENCE OF SINTERING TEMPERATURE ON NiO-SDCC ANODE FOR LOW-TEMPERATURE SOLID OXIDE FUEL CELLS (LT-SOFCs)

Mahmud, Lily Siong; Muchtar, Andanastuti; Somalu, Mahendra Rao

doi:10.13168/cs.2016.0047

Cited by 6 publications

(3 citation statements)

References 28 publications

(40 reference statements)

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“…High-performance composite anodes are urgently needed to accelerate the development of IT-LT-SOFCs. Practical strategies that have been adopted to maintain high ionic conductivity and low polarisation resistance include replacing yttria-stabilised zirconia (YSZ) with ceria-based electrolytes as well as optimising the anode microstructures to suppress the polarisation resistance at reduced temperature (400 -600°C) [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

EFFECTS OF NiO LOADING AND PRE-CALCINATION TEMPERATURE ON NiO-SDCC COMPOSITE ANODE POWDER FOR LOW-TEMPERATURE SOLID OXIDE FUEL CELLS

Hoa

Rahman

Somalu³

2017

Ceramics - Silikaty

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The microstructural and thermal characteristics of NiO-samarium-doped ceria carbonate (NiO-DCC) composite powders have been explored in terms of NiO loading and pre-calcination temperature. NiO-SDCC composite powders were intimately mixed via fast ball-milling using different NiO loadings (50-70 wt. %) and subjected to various pre-calcination temperatures (600-800°C). Subsequently, the pre-calcined powders were then used to fabricate composite pellets using a uniaxial press and sintered at a low temperature of 600°C. The crystalline phase, carbonate bonding, microstructure and thermal behaviour of the composite anode powders were investigated. The microstructure, porosity, and hardness of sintered composite pellets were also evaluated. All samples maintained their chemical compatibility and carbonate bonding after various processes. The findings indicated that the pre-calcination factor was more important than NiO loading in terms of powder and pellet morphologies as well as the thermal expansion behaviour. Moreover, the composite pellets prepared with composite powders pre-calcined at increasing temperatures exhibited an increase in porosity, but within an acceptable range (30-40 %). Overall, composite pellets fabricated with 50 wt. % NiO exhibited the optimum hardness values of 21-31 HV and the lowest thermal expansion of 12.2-12.7 × 10-6 K-1 .

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Section: Introductionmentioning

confidence: 99%

EFFECTS OF NiO LOADING AND PRE-CALCINATION TEMPERATURE ON NiO-SDCC COMPOSITE ANODE POWDER FOR LOW-TEMPERATURE SOLID OXIDE FUEL CELLS

Hoa

Rahman

Somalu³

2017

Ceramics - Silikaty

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“…Without any introduction of pore former, the porosity fell at an acceptable range (20% to 40%) for SOFC electrodes . As the sintering temperature increased, the densification also increased; thus, the porosity decreased . For the film sintered at 900°C, the average porosity was 25.51% ± 0.52%.…”

Section: Resultsmentioning

confidence: 97%

Effects of sintering temperature on the structural and electrochemical properties of SrFe_0.5Ti_0.5O_3‐δ perovskite cathode

Baharuddin

Muchtar

Somalu

et al. 2017

Int J Applied Ceramic Tech

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The effects of sintering temperature on the structural and electrochemical properties of SrFe 0.5 Ti 0.5 O 3-d perovskite cathode film was investigated. For the structural properties of SrFe 0.5 Ti 0.5 O 3-d film sintered at a temperature ranging from 900-1300°C, changes in surface and cross-sectional microstructure were studied. Surface porosity and micro hardness were analyzed. The relationship of the structural properties with the electrical and electrochemical performances of the SrFe 0.5-Ti 0.5 O 3-d film was examined. The high densification of the film sintered at 1300°C led to the better electrical conductivity of 16.38 S cm À1 than the 4.86 S cm À1 of the film sintered at 900°C at an operating temperature of 800°C. For the electrochemical performance, the SrFe 0.5 Ti 0.5 O 3-d film sintered at 1300°C gained a low area specific resistance (ASR) value of 38.70 O cm 2 at 800°C. The ASR further decreased to 0.99 O cm 2 for the thicker film sintered at the same temperature. K E Y W O R D S microstructure, perovskite, sintering, solid oxide fuel cell

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“…Meanwhile, Jarot et al [17] reported that samarium-doped ceria carbonate (SDCC) can be a potential material for electrolytes to operate at low temperatures (<600 °C). Mahmud et al [18] further determined the suitability of SDCCs as anodes and found that these cells feature good bonding between particles and efficient porosity to be anode candidates.…”

Section: Anodementioning

confidence: 99%

Challenges in Fabricating Solid Oxide Fuel Cell Stacks for Portable Applications: A Short Review

Raduwan

Muchtar²,

Somalu

et al. 2018

IJIE

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INFLUENCE OF SINTERING TEMPERATURE ON NiO-SDCC ANODE FOR LOW-TEMPERATURE SOLID OXIDE FUEL CELLS (LT-SOFCs)

Abstract: The effects of sintering temperature on the microstructural and physical properties of NiO-SDCC anode

Cited by 6 publications

References 28 publications

EFFECTS OF NiO LOADING AND PRE-CALCINATION TEMPERATURE ON NiO-SDCC COMPOSITE ANODE POWDER FOR LOW-TEMPERATURE SOLID OXIDE FUEL CELLS

EFFECTS OF NiO LOADING AND PRE-CALCINATION TEMPERATURE ON NiO-SDCC COMPOSITE ANODE POWDER FOR LOW-TEMPERATURE SOLID OXIDE FUEL CELLS

Effects of sintering temperature on the structural and electrochemical properties of SrFe_0.5Ti_0.5O_3‐δ perovskite cathode

Challenges in Fabricating Solid Oxide Fuel Cell Stacks for Portable Applications: A Short Review

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INFLUENCE OF SINTERING TEMPERATURE ON NiO-SDCC ANODE FOR LOW-TEMPERATURE SOLID OXIDE FUEL CELLS (LT-SOFCs)

Abstract: The effects of sintering temperature on the microstructural and physical properties of NiO-SDCC anode

Cited by 6 publications

References 28 publications

EFFECTS OF NiO LOADING AND PRE-CALCINATION TEMPERATURE ON NiO-SDCC COMPOSITE ANODE POWDER FOR LOW-TEMPERATURE SOLID OXIDE FUEL CELLS

EFFECTS OF NiO LOADING AND PRE-CALCINATION TEMPERATURE ON NiO-SDCC COMPOSITE ANODE POWDER FOR LOW-TEMPERATURE SOLID OXIDE FUEL CELLS

Effects of sintering temperature on the structural and electrochemical properties of SrFe0.5Ti0.5O3‐δ perovskite cathode

Challenges in Fabricating Solid Oxide Fuel Cell Stacks for Portable Applications: A Short Review

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Effects of sintering temperature on the structural and electrochemical properties of SrFe_0.5Ti_0.5O_3‐δ perovskite cathode