2024-03-28T18:22:50Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00026255
2023-01-16T04:16:47Z
320:321:322
Formation of Rhodium Metal Ensembles that Facilitate Nitric Oxide Reduction over Rhodium/Ceria in a Stoichiometric Nitric Oxide-Carbon Monoxide-Propene-Oxygen Reaction
Ohyama, Junya
78814
Nishiyama, Takumi
78815
Satsuma, Atsushi
78816
A series of ceria‐supported Rh nanoparticles (NPs) that have various particle sizes of 2–7 nm was prepared to investigate the size effect of Rh NPs on NO reduction in NO–CO–C3H6–O2 under stoichiometric conditions. The turnover frequency (TOF) for NO reduction on Rh NPs increased drastically according to their particle size. The strong size dependence of the TOF was attributed to the oxidation states of Rh NPs but not to particle geometries, which include fractions of surface local sites (e.g., corner, edge, plane) and the surface crystal structures (e.g., Rh(1 1 1), (1 0 0)). The variation of the TOF with the Rh metal fraction suggested that Rh metal ensembles are highly active species for NO reduction.
ファイル公開:2019-04-09
journal article
Wiley
2018-04-09
application/pdf
ChemCatChem
7
10
1651
1656
1867-3880
https://nagoya.repo.nii.ac.jp/record/26255/files/CCTC-S-17-02037.pdf
eng
https://doi.org/10.1002/cctc.201701842
This is the peer reviewed version of the following article: [J. Ohyama, T. Nishiyama, A. Satsuma, ChemCatChem 2018, 10, 1651.], which has been published in final form at [https://doi.org/10.1002/cctc.201701842]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.