Low-temperature oxidative coupling of methane in an electric field using carbon dioxide over Ca-doped LaAlO3 perovskite oxide catalysts

Tomohiro Yabe, Yukiko Kamite, Kei Sugiura, Shuhei Ogo, Yasushi Sekine*

*この研究の対応する著者

研究成果: Article査読

25 被引用数 (Scopus)

抄録

Methane conversion was conducted over various perovskite oxide catalysts at 423 K using carbon dioxide as an oxidant in an electric field. La0.7Ca0.3AlO3-δ catalyst showed high CO2-OCM activity. The highest CO2-OCM activity, C2 yield of 7.4%, was obtained even at 348 K, that value was higher than those of other earlier reports. Dry reforming of methane to produce syngas (H2 + CO) proceeded simultaneously, and no other byproduct was observed. Results of in-situ IR, XRD and TG measurements demonstrated that CO2 adsorption on the catalyst surface and formation of La2O2CO3 intermediate are important for progress of the CO2-OCM reaction, even at low temperature in an electric field. Ca atom incorporated in LaAlO3 perovskite played an important role in C2 hydrocarbon formation.

本文言語English
ページ(範囲)156-162
ページ数7
ジャーナルJournal of CO2 Utilization
20
DOI
出版ステータスPublished - 2017 7月

ASJC Scopus subject areas

  • 化学工学(その他)
  • 廃棄物管理と処理
  • プロセス化学およびプロセス工学

フィンガープリント

「Low-temperature oxidative coupling of methane in an electric field using carbon dioxide over Ca-doped LaAlO3 perovskite oxide catalysts」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル