556-48-9Relevant articles and documents
Heterogenized C-Scorpionate Iron(II) Complex on Nanostructured Carbon Materials as Recyclable Catalysts for Microwave-Assisted Oxidation Reactions
Ribeiro, Ana P. C.,Martins, Luísa M. D. R. S.,Carabineiro, Sónia A. C.,Buijnsters, Josephus G.,Figueiredo, José L.,Pombeiro, Armando J. L.
, p. 1821 - 1828 (2018)
The C-scorpionate iron(II) complex [FeCl2(Tpm)] [Tpm=κ3-HC(C3H3N2)3] (1) was immobilized on five different nanostructured carbon materials (nanodiamonds, graphene nanoplatelets, graphene ox
Ceria supported Ru0-Ruδ+ clusters as efficient catalyst for arenes hydrogenation
Cao, Yanwei,Zheng, Huan,Zhu, Gangli,Wu, Haihong,He, Lin
supporting information, p. 770 - 774 (2020/08/24)
Selective hydrogenation of aromatic amines, especially chemicals such as aniline and bis(4-aminocyclohexyl)methane for non-yellowing polyurethane, is of particular interests due to the extensive applications. To conquer the existing difficulties in selective hydrogenation, the Ru0-Ruδ+/CeO2 catalyst with solid frustrated Lewis pairs was developed for aromatic amines hydrogenation with excellent activity and selectivity under relative milder conditions. The morphology, electronic and chemical properties, especially the Ru0-Ruδ+ clusters and reducible ceria were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electronic microscopy (SEM), X-ray photoelectron spectroscopy (XPS), CO2 temperature programmed desorption (CO2-TPD), H2 temperature programmed reduction (H2-TPR), H2 diffuse reflectance Fourier transform infrared spectroscopy (H2-DRIFT), Raman, etc. The 2% Ru/CeO2 catalyst exhibited good conversion of 95% and selectivity greater than 99% toward cyclohexylamine. The volcano curve describing the activity and Ru state was found. Owning to the “acidic site isolation” by surrounding alkaline sites, condensation between the neighboring amine molecules could be effectively suppressed. The catalyst also showed good stability and applicability for other aromatic amines and heteroarenes containing different functional groups.
Carbon-supported Ni-based catalyst, preparation method thereof and 1-4 -cyclohexanediol prepared by catalyzing hydroquinone hydrogenation in fixed bed
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Paragraph 0021-0050, (2021/08/25)
The invention provides 1-cyclohexanediol high-surface-area porous-4 - structure inorganic carbon carrier-supported-supported catalyst used for selective hydrogenation Ni of hydroquinone and a preparation method thereof. The catalyst includes a main active component. Auxiliaries and carriers or main active components and carriers. The support is an inorganic carbon support or an acid or base treatment. The main active component is Ni, Ni is 0.01-50 .0 wt % in the weight of the catalyst, and the content of other auxiliaries is 0 - 10.0 wt % of the catalyst. Ni And auxiliaries are supported on an inorganic carbon support by means of impregnation or the like, and the main active component is highly dispersed in the support. In fixed-bed reactors, under certain temperature and pressure and of the catalyst, hydroquinone can be converted to 1 and 4 - cyclohexanediol with high activity and selectivity.