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Transition metal nanomaterials in catalysis

Abstract : Transition metal nanocatalysis is a promising area, where increased efficiency, greenness and reusability are actively sought. In this spirit, the thesis has been devoted to the synthesis, characterization and catalytic applications of new transition metal nanomaterials. Amphiphilic ligand stabilized transition metal nanoparticles catalysts have provided excellent catalytic performances in terms of activity, stability and recyclability in the 4-nitrophenol reduction, Suzuki-Miyaura coupling, transfer hydrogenation and alkyne-azide cycloaddition reactions with low amounts of metal loadings. Moreover, an efficient amphiphilic "click" CuI catalyst was also designed for part-per-million levels of alkyne-azide cycloaddition reaction in water. The design, synthesis and catalytic application of heterogeneous nanocatalysts based on graphene and metal organic framework supports have also been carried out, and their excellent catalytic properties in 4-nitrophenol reduction, Sonogashira coupling, alkyne-azide cycloaddition and hydrolysis of ammonia-borane for hydrogen generation in water under ambient conditions have been disclosed.
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Changlong Wang. Transition metal nanomaterials in catalysis. Catalysis. Université Paul Sabatier - Toulouse III, 2017. English. ⟨NNT : 2017TOU30106⟩. ⟨tel-01903837⟩

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