Non-oxidative coupling of methane over Pd-loaded gallium oxide photocatalysts in a flow reactor

Surya Pratap Singh, Akihiko Anzai, Satoru Kawaharasaki, Akira Yamamoto, Hisao Yoshida

研究成果: Contribution to journalArticle査読

6 被引用数 (Scopus)

抄録

Photocatalytic methane conversion is attractive for utilization of renewable biogas and solar energy to directly produce useful compounds. In the present study, gallium oxide (Ga2O3) photocatalyst was examined for non-oxidative coupling of methane (NOCM) around room temperature in a flow reactor. It was found that ethane and hydrogen were continuously yielded at constant rates from methane upon photoirradiation around room temperature, confirming that NOCM can be promoted photocatalytically over Ga2O3. In addition, Pd cocatalyst was found to improve the activity of the Ga2O3 photocatalyst for NOCM to produce ethane and hydrogen at almost the same constant rate and achieve more than three times higher formation rate of ethane such as 0.22 μmol h−1 in a flow of 10% methane at 30 mL min−1 with 0.8 g of photocatalyst. The methane conversion achieved to 0.006% within a short contact time of 0.8 s, which is higher than the thermodynamic equilibrium conversion.

本文言語英語
ページ(範囲)264-272
ページ数9
ジャーナルCatalysis Today
375
DOI
出版ステータス出版済み - 9 1 2021
外部発表はい

All Science Journal Classification (ASJC) codes

  • 触媒
  • 化学 (全般)

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