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

被引：22

作者：

Hinokuma, Satoshi ^{[1
]}

Iwasa, Takeshi ^{[2
,3
,4
]}

Kon, Yoshihiro ^{[1
]}

Taketsugu, Tetsuya ^{[2
,3
]}

Sato, Kazuhiko ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Interdisciplinary Res Ctr Catalyt Chem, Cent 5-2,1-1-1 Higashi, Tsukuba, Ibaraki 3058565, Japan

[2] Hokkaido Univ, Fac Sci, Dept Chem, Sapporo, Hokkaido 0600810, Japan

[3] Hokkaido Univ, Inst Chem React Design & Discovery WPI ICReDD, Sapporo, Hokkaido 0010021, Japan

[4] Japan Sci & Technol Agcy, PRESTO, Kawaguchi 3320012, Japan

来源：

SCIENTIFIC REPORTS | 2020年 / 10卷 / 01期

关键词：

NITROUS-OXIDE; BASIS-SETS; PERFORMANCE; ABATEMENT; CO; APPROXIMATION; ADSORPTION; CHEMISTRY; EMISSIONS; METALS;

D O I：

10.1038/s41598-020-78744-x

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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 O-2 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.

引用

页数：9

共 48 条

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