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

doi:10.1021/acsomega.9b00594

Electric Field and Mobile Oxygen Promote Low-Temperature Oxidative Coupling of Methane over La_1-xCa_xAlO_3-δ Perovskite Catalysts

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

^*この研究の対応する著者

先進理工学部

研究成果: Article › 査読

30 被引用数 (Scopus)

抄録

Oxidative coupling of methane (OCM) over La_1-xM_xAlO_3-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 La_0.7Ca_0.3AlO_3-δ catalyst showed the highest performance in terms of C₂H₆ + C₂H₄ yield (11.1%). Surface mobile oxygen species (O₂^2- or O^-), which were considered as active oxygen species for the OCM reaction, increased with increasing Ca doping amount, and thereby the La_0.7Ca_0.3AlO_3-δ catalyst showed the best catalytic activity.

本文言語	English
ページ（範囲）	10438-10443
ページ数	6
ジャーナル	ACS Omega
巻	4
号	6
DOI	https://doi.org/10.1021/acsomega.9b00594
出版ステータス	Published - 2019 6月 17

ASJC Scopus subject areas

化学一般
化学工学一般

文献へのアクセス

10.1021/acsomega.9b00594

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引用スタイル

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

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.",

author = "Ayaka Sato and Shuhei Ogo and Yuna Takeno and Kent Takise and Seo, {Jeong Gil} and Yasushi Sekine",

year = "2019",

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doi = "10.1021/acsomega.9b00594",

language = "English",

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T1 - Electric Field and Mobile Oxygen Promote Low-Temperature Oxidative Coupling of Methane over La1-xCaxAlO3-δ Perovskite Catalysts

AU - Sato, Ayaka

AU - Ogo, Shuhei

AU - Takeno, Yuna

AU - Takise, Kent

AU - Seo, Jeong Gil

AU - Sekine, Yasushi

PY - 2019/6/17

Y1 - 2019/6/17

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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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