NO decomposition properties of Ru catalysts supported on various oxide materials and SnO.

Sci Rep

Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Central 5-2, 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan.

Published: December 2020

Nitrous oxide (NO) is a stratospheric ozone depleting greenhouse gas that has global warming potential. As the catalytic decomposition of NO is one of the most promising techniques for NO emissions abatement, in this study, for this purpose the properties of Ru supported on various oxide materials were investigated under excess O conditions, and the identities of the NO adsorption species on the catalysts were confirmed. To clarify the correlation between the catalytic properties and NO 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 (RuO) at low temperature are closely associated with NO decomposition activity. The local structures, optimal Ru loading and NO adsorption species of the novel Ru/SnO catalysts were studied and they showed high activity for NO decomposition.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7728819PMC
http://dx.doi.org/10.1038/s41598-020-78744-xDOI Listing

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