Zeolite-supported ultra-small nickel as catalyst for selective oxidation of methane to syngas

Shuhei Yasuda, Ryota Osuga, Yusuke Kunitake, Kazuya Kato, Atsushi Fukuoka, Hirokazu Kobayashi, Min Gao, Jun ya Hasegawa, Ryo Manabe, Hisashi Shima, Susumu Tsutsuminai, Toshiyuki Yokoi

研究成果: Article査読

3 被引用数 (Scopus)

抄録

The development of simple catalysts with high performance in the selective oxidation of methane to syngas at low temperature has attracted much attention. Here we report a nickel-based solid catalyst for the oxidation of methane, synthesised by a facile impregnation method. Highly dispersed ultra-small NiO particles of 1.6 nm in size are successfully formed on the MOR-type zeolite. The zeolite–supported nickel catalyst gives continuously 97–98% methane conversion, 91–92% of CO yield with a H2/CO ratio of 2.0, and high durability without serious carbon deposition onto the catalyst at 973 K. DFT calculations demonstrate the effect of NiO particle size on the C-H dissociation process of CH4. A decrease in the NiO particle size enhances the production of oxygen originating from the NiO nanoparticles, which contributes to the oxidation of methane under a reductive environment, effectively producing syngas.

本文言語English
論文番号129
ジャーナルCommunications Chemistry
3
1
DOI
出版ステータスPublished - 2020 12 1
外部発表はい

ASJC Scopus subject areas

  • 生化学
  • 化学 (全般)
  • 環境化学
  • 材料化学

フィンガープリント

「Zeolite-supported ultra-small nickel as catalyst for selective oxidation of methane to syngas」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