Oxygen-sorptive and -desorptive properties of perovskite-related oxides under temperature-swing conditions for oxygen enrichment

Hajime Kusaba, Go Sakai, Kengo Shimanoe, Norio Miura, Noboru Yamazoe

研究成果: ジャーナルへの寄稿記事

22 引用 (Scopus)

抄録

A group of A- and/or B-site partially substituted strontium cobaltites was investigated for oxygen-sorptive properties under temperature-swing conditions in air. The cobaltites with perovskite structure desorbed and absorbed significant amounts of oxygen quickly as well as reversibly on heating or cooling in the temperature range between 300 and 1000 °C, while those with brownmillerite or 2H-BaNiO3 structure either lacked oxygen-sorptive properties or showed retarded oxygen sorption with hysteresis, respectively. Under temperature-swing cycles between 300 and 550 °C at a heating or cooling rate of 30 °C/min, SrCo0.4Fe0.6O3 - δ showed the largest mass change of 0.96%, or sorption and desorption of 7 cm3 oxygen (STP)/g oxide among the perovskite-type oxides tested. This result appears to indicate the potential of a new oxygen enriching method coupled with a temperature-swing technique.

元の言語英語
ページ(範囲)689-694
ページ数6
ジャーナルSolid State Ionics
152-153
DOI
出版物ステータス出版済み - 12 1 2002

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Perovskite
Oxides
Oxygen
oxides
oxygen
sorption
Temperature
temperature
Sorption
Cooling
cooling
Heating
Strontium
heating
strontium
Hysteresis
perovskite
Desorption
desorption
hysteresis

All Science Journal Classification (ASJC) codes

  • Electrochemistry
  • Physical and Theoretical Chemistry
  • Energy Engineering and Power Technology
  • Materials Chemistry
  • Condensed Matter Physics

これを引用

Oxygen-sorptive and -desorptive properties of perovskite-related oxides under temperature-swing conditions for oxygen enrichment. / Kusaba, Hajime; Sakai, Go; Shimanoe, Kengo; Miura, Norio; Yamazoe, Noboru.

:: Solid State Ionics, 巻 152-153, 01.12.2002, p. 689-694.

研究成果: ジャーナルへの寄稿記事

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abstract = "A group of A- and/or B-site partially substituted strontium cobaltites was investigated for oxygen-sorptive properties under temperature-swing conditions in air. The cobaltites with perovskite structure desorbed and absorbed significant amounts of oxygen quickly as well as reversibly on heating or cooling in the temperature range between 300 and 1000 °C, while those with brownmillerite or 2H-BaNiO3 structure either lacked oxygen-sorptive properties or showed retarded oxygen sorption with hysteresis, respectively. Under temperature-swing cycles between 300 and 550 °C at a heating or cooling rate of 30 °C/min, SrCo0.4Fe0.6O3 - δ showed the largest mass change of 0.96{\%}, or sorption and desorption of 7 cm3 oxygen (STP)/g oxide among the perovskite-type oxides tested. This result appears to indicate the potential of a new oxygen enriching method coupled with a temperature-swing technique.",
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AU - Kusaba, Hajime

AU - Sakai, Go

AU - Shimanoe, Kengo

AU - Miura, Norio

AU - Yamazoe, Noboru

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N2 - A group of A- and/or B-site partially substituted strontium cobaltites was investigated for oxygen-sorptive properties under temperature-swing conditions in air. The cobaltites with perovskite structure desorbed and absorbed significant amounts of oxygen quickly as well as reversibly on heating or cooling in the temperature range between 300 and 1000 °C, while those with brownmillerite or 2H-BaNiO3 structure either lacked oxygen-sorptive properties or showed retarded oxygen sorption with hysteresis, respectively. Under temperature-swing cycles between 300 and 550 °C at a heating or cooling rate of 30 °C/min, SrCo0.4Fe0.6O3 - δ showed the largest mass change of 0.96%, or sorption and desorption of 7 cm3 oxygen (STP)/g oxide among the perovskite-type oxides tested. This result appears to indicate the potential of a new oxygen enriching method coupled with a temperature-swing technique.

AB - A group of A- and/or B-site partially substituted strontium cobaltites was investigated for oxygen-sorptive properties under temperature-swing conditions in air. The cobaltites with perovskite structure desorbed and absorbed significant amounts of oxygen quickly as well as reversibly on heating or cooling in the temperature range between 300 and 1000 °C, while those with brownmillerite or 2H-BaNiO3 structure either lacked oxygen-sorptive properties or showed retarded oxygen sorption with hysteresis, respectively. Under temperature-swing cycles between 300 and 550 °C at a heating or cooling rate of 30 °C/min, SrCo0.4Fe0.6O3 - δ showed the largest mass change of 0.96%, or sorption and desorption of 7 cm3 oxygen (STP)/g oxide among the perovskite-type oxides tested. This result appears to indicate the potential of a new oxygen enriching method coupled with a temperature-swing technique.

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