The Effect of Milling Speed and Calcination Temperature towards Composite Cathode LSCF-SDC Carbonate

Ahmad, Sufizar; Bakar, Muhamad Subri Abu; Muchtar, Andanastuti; Muhamad, Norhamidi; Rahman, Hamidah Abdul

doi:10.4028/www.scientific.net/amr.576.220

Cited by 5 publications

(5 citation statements)

References 7 publications

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“…The result indicates that the particle size was increased with the increase of calcinations temperature. This result was same with previous study [10]. Fig.…”

Section: Resultssupporting

confidence: 93%

Effects of Milling Techniques and Calcinations Temperature on the Composite Cathode Powder LSCF-SDC Carbonate

Bakar

Ahmad

Rahman

et al. 2014

AMR

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Composite cathode La0.6Sr0.4Co0.2Fe0.8O3-δ-SDC carbonates (LSCF-SDCC) for applications of low temperature solid oxide fuel cell (LTSOFC) were developed. LSCF-SDCC were mixed using high energy ball milling technique via dry and wet milling method followed by calcinations at 700, 750 and 800 °C. The findings reveal that different calcinations temperature and milling techniques gives effects to the composite cathodes powder. Clear peak intensity demonstrate from wet milling technique as confirm via XRD analysis indicates that crystalline structure has been improved. FESEM investigation demonstrate the presence of large particles in the resultant powder resulting from the increased calcination temperature. LSCF-SDCC composite cathodes powder produced via wet milling technique have good fine fraction and demonstrates good crystallite structure to be served as cathode of LTSOFC compared to dry milling technique.

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“…The result indicates that the particle size was increased with the increase of calcinations temperature. This result was same with previous study [10]. Fig.…”

Section: Resultssupporting

confidence: 93%

Effects of Milling Techniques and Calcinations Temperature on the Composite Cathode Powder LSCF-SDC Carbonate

Bakar

Ahmad

Rahman

et al. 2014

AMR

Self Cite

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“…The result indicates that the particle size was increased with the increase of calcination temperature. This result was same with previous study [12]. This theory also same goes with the effect of soaking time in which the particle size was increased from soaking time of 1 hour up to 3 hours.…”

Section: Resultssupporting

confidence: 91%

Effects of Calcination Factors on the Composite Cathode Powder LSCF-SDC Carbonate by Using Dry Milling

Bakar

Kamaruddin

Ahmad

et al. 2013

AMM

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The effects of calcination factors on the La0.6Sr0.4Co0.2Fe0.8O3-δ-SDCC (LSCF-SDCC) composite cathodes powder were investigated. LSCF-SDCC has been prepared using high energy ball milling technique via dry milling method. The resultant LSCF-SDCC composite cathodes powder then were calcined at 700, 750 and 800 °C with soaking time of 1, 2 and 3 hours. The findings reveal that different calcinations temperature and soaking time gives effects to the composite cathodes powder. Clear peak intensity demonstrate from calcination temperature 750 °C as confirm via XRD analysis indicates that crystalline structure has been improved. FESEM investigation demonstrate the presence of large particles in the resultant powder resulting from the increased calcination temperature and soaking time. LSCF-SDCC composite cathodes powder calcined at a temperature of 750oC for soaking time 1, 2 and 3 hours demonstrates good crystallite structure to be served as composite cathode SOFCs compared to samples calcined at 700oC and 800oC with soaking time 1, 2 and 3 hours.

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“…The effect of BM on the microstructural properties of metals (such as Ni, Co), alloys and metal oxides (such as Fe 2 O 3 -SnO 2 , ZrO 2 -Fe 2 O 3 , SiO 2 , SrTiO 3 , and doped ceria) has been explained by many researchers [2][3][4][5][6][7][8]. According to Bolokang et al, the lattice expansion is possible with milling duration [6].…”

Section: Introductionmentioning

confidence: 99%

Non-monotonic lattice parameter variation in ball-milled ceria

2015

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High-energy ball milling is utilized in creating microstructural changes (such as change in lattice parameter, lattice strain) within micro-ceria, which were quantified using line profile analysis by X-ray diffraction. Crystallite size significantly decreased from 85 to 11 nm when subjected to 4 h of high-energy ball milling, and then remained same with increase in milling duration (up to 16 h of milling). Three different methods, namely NelsonRiley function, Cohen's method, and Pawley fitting, were used to calculate the lattice parameter and a lattice expansion from 5.4082 to 5.4147 Å was observed for a duration of 0 up to 12 h. The effect of milling on generation of residual strain and the probability of stacking fault in affecting the lattice parameter are delineated in the current work. Non-monotonic change of lattice parameter with saturation of crystallite size is attributed to the vacancy-induced stresses that generate at inter-crystallite regions and render excessive free volume during high-energy ball milling.

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The Effect of Milling Speed and Calcination Temperature towards Composite Cathode LSCF-SDC Carbonate

Cited by 5 publications

References 7 publications

Effects of Milling Techniques and Calcinations Temperature on the Composite Cathode Powder LSCF-SDC Carbonate

Effects of Milling Techniques and Calcinations Temperature on the Composite Cathode Powder LSCF-SDC Carbonate

Effects of Calcination Factors on the Composite Cathode Powder LSCF-SDC Carbonate by Using Dry Milling

Non-monotonic lattice parameter variation in ball-milled ceria

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