Effect of chemical and physical properties of titanium oxide support surface during nitrogen monoxide reduction by carbon monoxide in presence water over titanium oxide supported platinum catalyst

Keisuke Kobayashi*, Shotaro Ogawa, Hideyuki Matsumoto, Keigo Matsuda, Tetsuya Nanba

*この研究の対応する著者

研究成果: Article査読

1 被引用数 (Scopus)

抄録

The selective conversion of NOx to NH3 through the NO – CO - H2O reaction over Pt/TiO2 catalysts was investigated to develop a method for utilizing reactive nitrogen species emitted from combustion processes as raw materials for the synthesis of useful compounds. High NH3 selectivity was achieved for high-specific-surface-area catalysts. Catalytic activity tests showed that the activities of catalysts depended on the crystal structure of the support. Comparing CO conversion between NO – CO - H2O reaction and CO - H2O reaction, which could play a role of H-supply reaction, Pt/TiO3 demonstrated higher CO conversion for the NO – CO - H3O reaction than that for CO - H2O reaction except for high-surface-area anatase TiO2-supported catalyst around 200°C. Temperature-programmed desorption of CO2 revealed that the CO3 formed during the NO – CO - H2O reaction had no effect on the difference in activity. Carbonaceous surface species and NHx species were observed on the surface of Pt/TiO2 catalyst during NO – CO - H2O reaction by diffused reflectance infrared Fourier transform spectroscopy. The difference in formate formation on anatase-TiO2 supported Pt catalyst was confirmed compared to rutile-TiO2 supported Pt catalyst.

本文言語English
ページ(範囲)28-37
ページ数10
ジャーナルJournal of The Japan Petroleum Institute
63
1
DOI
出版ステータスPublished - 2020
外部発表はい

ASJC Scopus subject areas

  • 燃料技術
  • エネルギー工学および電力技術

フィンガープリント

「Effect of chemical and physical properties of titanium oxide support surface during nitrogen monoxide reduction by carbon monoxide in presence water over titanium oxide supported platinum catalyst」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