Electric Field and Mobile Oxygen Promote Low-Temperature Oxidative Coupling of Methane over La1-xCaxAlO3-δ Perovskite Catalysts

Ayaka Sato, Shuhei Ogo, Yuna Takeno, Kent Takise, Jeong Gil Seo, Yasushi Sekine

研究成果: Article

抄録

Oxidative coupling of methane (OCM) over La1-xMxAlO3-δ (M = Ca, Sr, Ba; x = 0, 0.1, 0.2, 0.3) in an electric field at low temperature (423 K) was investigated. Among the tested catalysts, the La0.7Ca0.3AlO3-δ catalyst showed the highest performance in terms of C2H6 + C2H4 yield (11.1%). Surface mobile oxygen species (O22- or O-), which were considered as active oxygen species for the OCM reaction, increased with increasing Ca doping amount, and thereby the La0.7Ca0.3AlO3-δ catalyst showed the best catalytic activity.

元の言語English
ページ(範囲)10438-10443
ページ数6
ジャーナルACS Omega
4
発行部数6
DOI
出版物ステータスPublished - 2019 6 17

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Methane
Perovskite
Electric fields
Oxygen
Catalysts
Temperature
Reactive Oxygen Species
Catalyst activity
Doping (additives)
perovskite

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

これを引用

Electric Field and Mobile Oxygen Promote Low-Temperature Oxidative Coupling of Methane over La1-xCaxAlO3-δ Perovskite Catalysts. / Sato, Ayaka; Ogo, Shuhei; Takeno, Yuna; Takise, Kent; Seo, Jeong Gil; Sekine, Yasushi.

:: ACS Omega, 巻 4, 番号 6, 17.06.2019, p. 10438-10443.

研究成果: Article

Sato, Ayaka ; Ogo, Shuhei ; Takeno, Yuna ; Takise, Kent ; Seo, Jeong Gil ; Sekine, Yasushi. / Electric Field and Mobile Oxygen Promote Low-Temperature Oxidative Coupling of Methane over La1-xCaxAlO3-δ Perovskite Catalysts. :: ACS Omega. 2019 ; 巻 4, 番号 6. pp. 10438-10443.
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abstract = "Oxidative coupling of methane (OCM) over La1-xMxAlO3-δ (M = Ca, Sr, Ba; x = 0, 0.1, 0.2, 0.3) in an electric field at low temperature (423 K) was investigated. Among the tested catalysts, the La0.7Ca0.3AlO3-δ catalyst showed the highest performance in terms of C2H6 + C2H4 yield (11.1{\%}). Surface mobile oxygen species (O22- or O-), which were considered as active oxygen species for the OCM reaction, increased with increasing Ca doping amount, and thereby the La0.7Ca0.3AlO3-δ catalyst showed the best catalytic activity.",
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AU - Takeno, Yuna

AU - Takise, Kent

AU - Seo, Jeong Gil

AU - Sekine, Yasushi

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AB - Oxidative coupling of methane (OCM) over La1-xMxAlO3-δ (M = Ca, Sr, Ba; x = 0, 0.1, 0.2, 0.3) in an electric field at low temperature (423 K) was investigated. Among the tested catalysts, the La0.7Ca0.3AlO3-δ catalyst showed the highest performance in terms of C2H6 + C2H4 yield (11.1%). Surface mobile oxygen species (O22- or O-), which were considered as active oxygen species for the OCM reaction, increased with increasing Ca doping amount, and thereby the La0.7Ca0.3AlO3-δ catalyst showed the best catalytic activity.

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