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N2O decomposition properties of Ru catalysts supported on various oxide materials and SnO2.

ABSTRACT: Nitrous oxide (N2O) is a stratospheric ozone depleting greenhouse gas that has global warming potential. As the catalytic decomposition of N2O is one of the most promising techniques for N2O emissions abatement, in this study, for this purpose the properties of Ru supported on various oxide materials were investigated under excess O2 conditions, and the identities of the N2O adsorption species on the catalysts were confirmed. To clarify the correlation between the catalytic properties and N2O decomposition activity, the supported Ru catalysts were characterised by means of powder X-ray diffraction, X-ray fluorescence measurements, energy-dispersive X-ray mapping and several gas sorption techniques. The results showed that the redox properties for Ru (RuO2) at low temperature are closely associated with N2O decomposition activity. The local structures, optimal Ru loading and N2O adsorption species of the novel Ru/SnO2 catalysts were studied and they showed high activity for N2O decomposition.

SUBMITTER: Hinokuma S 

PROVIDER: S-EPMC7728819 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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N<sub>2</sub>O decomposition properties of Ru catalysts supported on various oxide materials and SnO<sub>2</sub>.

Hinokuma Satoshi S   Iwasa Takeshi T   Kon Yoshihiro Y   Taketsugu Tetsuya T   Sato Kazuhiko K  

Scientific reports 20201210 1

Nitrous oxide (N<sub>2</sub>O) is a stratospheric ozone depleting greenhouse gas that has global warming potential. As the catalytic decomposition of N<sub>2</sub>O is one of the most promising techniques for N<sub>2</sub>O emissions abatement, in this study, for this purpose the properties of Ru supported on various oxide materials were investigated under excess O<sub>2</sub> conditions, and the identities of the N<sub>2</sub>O adsorption species on the catalysts were confirmed. To clarify the  ...[more]

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