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New findings and current controversies in the reaction of ruthenium red and ammonium cerium(iv) nitrate: focus on the precipitated compound

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Abstract

Finding the true catalyst has always been a challenging step toward the exploration, understanding, and design of catalytic systems for water-oxidation reaction. Many homogeneous and heterogeneous transition metal complexes have been reported that can undergo a complete transformation to the true catalysts during water-oxidation reaction. Herein, the transformation of the previously-explored ruthenium red ([(NH3)5RuORu(NH3)4ORu(NH3)5]Cl6) catalyst in the presence of ammonium cerium(IV) nitrate is reported. For the first time, it is reported that a heterogeneous nano-sized ruthenium–cerium compound is formed by the electrostatic interaction of [(NH3)5RuORu(NH3)4ORu(NH3)5],6+/7+ nitrate ions, and the products of the reduction of ammonium cerium(IV) nitrate.

Graphical abstract: New findings and current controversies in the reaction of ruthenium red and ammonium cerium(iv) nitrate: focus on the precipitated compound

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Article information


Submitted
09 Dec 2019
Accepted
13 Mar 2020
First published
13 Mar 2020

Catal. Sci. Technol., 2020, Advance Article
Article type
Paper

New findings and current controversies in the reaction of ruthenium red and ammonium cerium(IV) nitrate: focus on the precipitated compound

B. Sarvi, S. M. Hosseini, B. Deljoo, A. El-Sawy, A. Shirazi Amin, M. Aindow, S. L. Suib and M. M. Najafpour, Catal. Sci. Technol., 2020, Advance Article , DOI: 10.1039/C9CY02499A

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