Influence of powder synthesis methods on microstructure and oxygen permeation performance of Ba0.5Sr0.5Co0.8Fe0.2O3−δ perovskite-type membranes

Tan, Liang; Gu, Xiaobin; Yang, Li; Jin, Wanqin; Zhang, Lixiong; Xu, Nanping

doi:10.1016/s0376-7388(02)00494-5

Cited by 98 publications

(50 citation statements)

References 12 publications

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“…The mean crystallite sizes were calculated from 101 The intensity of diffraction patterns of (a) and (b) was reduced to 30% because the diffraction peak intensity of BaO 2 was quite high. Journal of the Ceramic Society of Japan 125 [9] 681-685 2017 reflection at ca. 2ª = 26.4°in XRD patterns.…”

Section: Results and Discussion 31 Preparation Of Bao 2 And Sromentioning

confidence: 99%

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Reactive-sintering of Ba0.5Sr0.5Co0.8Fe0.2O3−δ using alkaline earth peroxides for low-temperature synthesis

Yamaguchi

Sumi

Shimada

et al. 2017

J. Ceram. Soc. Japan

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In this study, we developed the low-temperature synthesis of Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3¹¤ (BSCF) using barium peroxide (BaO 2 ) and strontium peroxide (SrO 2 ) as starting materials of A-site elements in perovskite. The sintered bodies were obtained at a low temperature of 700°C by two approaches. One was a two-step sintering process, which included the preparation of fine hexagonal-phase BSCF powders with mean crystallite sizes of 2030 nm by a novel low-temperature solid-state reaction before sintering. Another approach was a one-step sintering process using reactive sintering, which is the simultaneous reaction of BSCF synthesis and green body sintering from the starting material powders. For the sintered bodies obtained by the one-and two-step sintering processes, the relative density was ca. 50%. The reactive-sintered body of hexagonal-phase BSCF obtained by the onestep process showed higher electrical conductivity of 6.3 S cm ¹1 at 500°C than the BSCF sintered bodies obtained by the two-step process (4.1 S cm ¹1). Reactive sintering realizes good connectivity among BSCF particles, which enhances the electrical conductivity of porous BSCF bodies.

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Section: Results and Discussion 31 Preparation Of Bao 2 And Sromentioning

confidence: 99%

“…Solid-state synthesis required heating at more than 1000°C. 9) In the case of solution methods, a single phase of cubic BSCF perovskite can be obtained at less than 700°C. 10) However, BSCF was sintered on the electrolyte layer at higher than 850°C 11)15) due to the formation of a cathode layer on the electrolyte.…”

Section: Introductionmentioning

confidence: 99%

Reactive-sintering of Ba0.5Sr0.5Co0.8Fe0.2O3−δ using alkaline earth peroxides for low-temperature synthesis

Yamaguchi

Sumi

Shimada

et al. 2017

J. Ceram. Soc. Japan

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“…Several methods were used to synthesize perovskite-type powders. These methods include liquid citrate method, EDTA-citrate complex gel method, 22,23 solid-state reaction method, 24,25 wet chemical synthesis, 26 and sol-gel method.…”

Section: Resultsmentioning

confidence: 99%

Characteristics of SrCo_1-xFe_xO_3-_δPerovskite Powders with Improved O₂/CO₂Production Performance for Oxyfuel Combustion

Shen¹,

Zheng²,

Luo³

et al. 2014

Bulletin of the Korean Chemical Society

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Perovskite-type oxides are promising oxygen carriers in producing oxygen-enriched CO 2 gas stream for oxyfuel combustion. In this study, a new series of SrCo 1-x Fe x O 3-δ (x = 0.2, 0.4, 0.6, 0.8) was prepared and used to produce O 2 /CO 2 mixture gas. The phase, crystal structure, and morphological properties of SrCo 1-x Fe x O 3-δ were investigated through X-ray diffraction, specific surface area measurements, and environmental scanning electron microscopy. The oxygen desorption performance of SrCo 1-x Fe x O 3-δ was studied in a fixed-bed reactor system. Results showed that the different x values of SrCo 1-x Fe x O 3-δ have no obvious effects on crystalline structure. However, the oxygen desorption performance of SrCo 1-x Fe x O 3-δ is improved by Co doping. Moreover, SrCo 0.8 Fe 0.2 O 3-δ synthesized via a new EDTA method has a larger BET surface area (40.396 m 2 /g), smaller particle size (48.3 nm), and better oxygen production performance compared with that synthesized through a liquid citrate method.

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“…Thereby, this architecture development suggests the using of starting powders with nanometer particles size and high specific surface area 4,[8][9][10][11] . Consequently, BSCF powders synthesis has become a subject of great relevance and the BSCF perovskite has been synthesized by several methods: conventionally by solid state reaction 12,13 , combustion synthesis reaction 14,15 , co-precipitation method 8,16 , complexing method 5,11,12 , and others 17 . Moreover, the use of microwave heating together with these synthesis methods has emerged as a novel route to produce materials in nanoscale 17 .…”

Section: Introductionmentioning

confidence: 99%

Microwave Assisted Synthesis and Sintering of Ba0.5Sr0.5Co0.8Fe0.2O3-δ Perovskite

Nuernberg

Morelli

2015

Mat. Res.

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Influence of powder synthesis methods on microstructure and oxygen permeation performance of Ba0.5Sr0.5Co0.8Fe0.2O3−δ perovskite-type membranes

Cited by 98 publications

References 12 publications

Reactive-sintering of Ba<sub>0.5</sub>Sr<sub>0.5</sub>Co<sub>0.8</sub>Fe<sub>0.2</sub>O<sub>3−δ</sub> using alkaline earth peroxides for low-temperature synthesis

Reactive-sintering of Ba<sub>0.5</sub>Sr<sub>0.5</sub>Co<sub>0.8</sub>Fe<sub>0.2</sub>O<sub>3−δ</sub> using alkaline earth peroxides for low-temperature synthesis

Characteristics of SrCo_1-xFe_xO_3-_δPerovskite Powders with Improved O₂/CO₂Production Performance for Oxyfuel Combustion

Microwave Assisted Synthesis and Sintering of Ba0.5Sr0.5Co0.8Fe0.2O3-δ Perovskite

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Influence of powder synthesis methods on microstructure and oxygen permeation performance of Ba0.5Sr0.5Co0.8Fe0.2O3−δ perovskite-type membranes

Cited by 98 publications

References 12 publications

Reactive-sintering of Ba<sub>0.5</sub>Sr<sub>0.5</sub>Co<sub>0.8</sub>Fe<sub>0.2</sub>O<sub>3&minus;&delta;</sub> using alkaline earth peroxides for low-temperature synthesis

Reactive-sintering of Ba<sub>0.5</sub>Sr<sub>0.5</sub>Co<sub>0.8</sub>Fe<sub>0.2</sub>O<sub>3&minus;&delta;</sub> using alkaline earth peroxides for low-temperature synthesis

Characteristics of SrCo1-xFexO3-δPerovskite Powders with Improved O2/CO2Production Performance for Oxyfuel Combustion

Microwave Assisted Synthesis and Sintering of Ba0.5Sr0.5Co0.8Fe0.2O3-δ Perovskite

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Reactive-sintering of Ba<sub>0.5</sub>Sr<sub>0.5</sub>Co<sub>0.8</sub>Fe<sub>0.2</sub>O<sub>3−δ</sub> using alkaline earth peroxides for low-temperature synthesis

Reactive-sintering of Ba<sub>0.5</sub>Sr<sub>0.5</sub>Co<sub>0.8</sub>Fe<sub>0.2</sub>O<sub>3−δ</sub> using alkaline earth peroxides for low-temperature synthesis

Characteristics of SrCo_1-xFe_xO_3-_δPerovskite Powders with Improved O₂/CO₂Production Performance for Oxyfuel Combustion