Studies on metal oxides suitable for enhancement of the O2-releasing step in water splitting by the MnFe2O4–Na2CO3 system

Kaneko, Hiroshi; Hosokawa, Y; Kojima, Noboru; Gokon, Nobuyuki; Hasegawa, Noriko; Kitamura, Mitsunobu; Tamaura, Yutaka

doi:10.1016/s0360-5442(01)00041-x

Cited by 12 publications

(2 citation statements)

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“…Alternately, there are several sodium titanates reported in the literature that have been synthesized by different methods − and used in different applications such as a basic catalyst in transesterification reactions, water splitting reactions, and on different ferroelectric properties. − However, there is only one report about the use of sodium metatitanate (Na 2 TiO 3 ) as a possible CO 2 captor. López-Ortiz et al, synthesized and tested different sodium ceramics as CO 2 captors.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic and Kinetic Analyses of the CO₂ Chemisorption Mechanism on Na₂TiO₃: Experimental and Theoretical Evidences

et al. 2014

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Sodium metatitanate (Na2TiO3) was successfully synthesized via a solid-state reaction. The Na2TiO3 structure and microstructure were characterized using X-ray diffraction, scanning and transmission electron microscopy, and N2 adsorption. Then, the CO2 chemisorption mechanism on Na2TiO3 was systematically analyzed to determine the influence of temperature. The CO2 chemisorption capacity of Na2TiO3 was evaluated both dynamically and isothermally, and the products were reanalyzed to elucidate the Na2TiO3–CO2 reaction mechanism. Different chemical species (Na2CO3, Na2O, and Na4Ti5O12 or Na16Ti10O28) were identified during the CO2 capture process in Na2TiO3. In addition, some CO2 chemisorption kinetic parameters were determined. The Δ H ⧧ was found to be 140.9 kJ/mol, to the Na2TiO3–CO2 system, between 600 and 780 °C. Results evidenced that CO2 chemisorption on Na2TiO3 highly depends on the reaction temperature. Furthermore, the experiments were theoretically supported by different thermodynamic calculations. The calculated thermodynamic properties of CO2 capture reactions by (Na2TiO3, Na4Ti5O12, and Na16Ti10O28) sodium titanates were fully investigated.

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Section: Introductionmentioning

confidence: 99%

Thermodynamic and Kinetic Analyses of the CO₂ Chemisorption Mechanism on Na₂TiO₃: Experimental and Theoretical Evidences

et al. 2014

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“…21) Therefore, the NaFeO 2 /CO 2 reaction is expected to be useful as a TcES system at high temperatures. However, few reports of this reaction have been published 22,23) to date, and further investigation is required.…”

Section: (4)mentioning

confidence: 99%

Sodium Ferrite/Carbon Dioxide Reactivity for High Temperature Thermochemical Energy Storage

et al. 2019

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Efficient production of biodiesel at low temperature using highly active bifunctional Na-Fe-Ca nanocatalyst from blast furnace waste

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et al. 2022

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Studies on metal oxides suitable for enhancement of the O2-releasing step in water splitting by the MnFe2O4–Na2CO3 system

Cited by 12 publications

References 7 publications

Thermodynamic and Kinetic Analyses of the CO₂ Chemisorption Mechanism on Na₂TiO₃: Experimental and Theoretical Evidences

Thermodynamic and Kinetic Analyses of the CO₂ Chemisorption Mechanism on Na₂TiO₃: Experimental and Theoretical Evidences

Sodium Ferrite/Carbon Dioxide Reactivity for High Temperature Thermochemical Energy Storage

Efficient production of biodiesel at low temperature using highly active bifunctional Na-Fe-Ca nanocatalyst from blast furnace waste

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Studies on metal oxides suitable for enhancement of the O2-releasing step in water splitting by the MnFe2O4–Na2CO3 system

Cited by 12 publications

References 7 publications

Thermodynamic and Kinetic Analyses of the CO2 Chemisorption Mechanism on Na2TiO3: Experimental and Theoretical Evidences

Thermodynamic and Kinetic Analyses of the CO2 Chemisorption Mechanism on Na2TiO3: Experimental and Theoretical Evidences

Sodium Ferrite/Carbon Dioxide Reactivity for High Temperature Thermochemical Energy Storage

Efficient production of biodiesel at low temperature using highly active bifunctional Na-Fe-Ca nanocatalyst from blast furnace waste

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Thermodynamic and Kinetic Analyses of the CO₂ Chemisorption Mechanism on Na₂TiO₃: Experimental and Theoretical Evidences

Thermodynamic and Kinetic Analyses of the CO₂ Chemisorption Mechanism on Na₂TiO₃: Experimental and Theoretical Evidences