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Oxidation catalyst obtained by the immobilization of layered double hydroxide/Mn(III) porphyrin on monodispersed silica spheres

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Abstract

Several functional hybrid materials have been reported as immobilized porphyrin derivatives in various organic and inorganic host materials (polymers, mineral clays, silica, etc.), with potential applications in various fields, such as photochemistry, electrochemistry and heterogeneous catalysis. Layered double hydroxides (LDHs), commonly known as hydrotalcite-like materials, have also been analyzed for use as supports for metallocomplexes. Recently, nanocomposite materials with a core–shell structure produced by combining two kinds of nanometer-size materials have received considerable attention, since the use of these materials is a promising strategy to prevent the aggregation and self-oxidation of molecules, reducing the catalytic activity. In this study, monodispersed hierarchical layered double hydroxides on silica spheres (LDH@SiO2) with core–shell structures were developed for metalloporphyrin immobilization and the materials were used as the oxidant catalysts of different substrates.

Graphical abstract: Oxidation catalyst obtained by the immobilization of layered double hydroxide/Mn(iii) porphyrin on monodispersed silica spheres

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Publication details

The article was received on 28 Sep 2017, accepted on 23 Nov 2017 and first published on 23 Nov 2017


Article type: Paper
DOI: 10.1039/C7DT03656F
Citation: Dalton Trans., 2018, Advance Article
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    Oxidation catalyst obtained by the immobilization of layered double hydroxide/Mn(III) porphyrin on monodispersed silica spheres

    K. M. Mantovani, K. C. Molgero Westrup, R. M. da Silva Junior, S. Jaerger, F. Wypych and S. Nakagaki, Dalton Trans., 2018, Advance Article , DOI: 10.1039/C7DT03656F

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