A. S, T. B, V. G, D. S, Kulal N, A. S. Framework of ruthenium-containing nickel hydrotalcite-type material: preparation, characterisation, and its catalytic application.
RSC Adv 2018;
8:25248-25257. [PMID:
35547953 PMCID:
PMC9088202 DOI:
10.1039/c8ra03506g]
[Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 07/03/2018] [Indexed: 11/21/2022] Open
Abstract
The framework ruthenium-containing nickel (NiRu) hydrotalcite (HT)-type materials were prepared by a co-precipitation method for the first time in this study. Fourier-transform infrared spectroscopy and X-ray diffraction analysis revealed the formation of a layered hydrotalcite-type phase. DRUV-Vis and X-ray photoelectron spectroscopic studies revealed the presence of nickel in the +2 and +3 oxidation states along with the presence of ruthenium as Ru3+ ions. Temperature-programmed desorption studies of the NiRu-HT-type materials indicated a two-stage reduction with a decrease in Tmax, supporting the presence of Ni2+ and Ru3+ in the framework of hydrotalcite. The obtained NiRu-HT-type materials proved to be promising catalysts for the reduction of aromatic nitro compounds in the presence of hydrazine as a hydrogen source under ambient conditions. The NiRu-HT-type material demonstrated enhanced activity and selectivity during the reduction of nitrobenzene and its derivatives due to the synergistic effect of nickel and ruthenium ions.
The framework ruthenium-containing nickel (NiRu) hydrotalcite (HT)-type materials were prepared for the first time without organics and the resultant materials were found to be promising catalysts for nitro-benzene reduction.![]()
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