Abstract
In this work, we report an improved catalyst which is superior to known heterogeneous catalysts for dehydrocoupling of dimethylamine-borane (DMAB). The prepared three metallic nanocomposites consist of graphene oxide supported monodisperse palladium, ruthenium and nickel nanomaterials (3.78 ± 0.43 nm). The monodisperse PdRuNi nanoparticles decorated with graphene oxide (PdRuNi@GO) were synthesized according to the microwave synthesis method and characterized by TEM (Transmisson Electron Microscopy), HR-TEM (High Resolution Transmisson Electron Microscopy), XPS (X-ray photoelectron spectroscopy), XRD (X-ray diffraction) and Raman spectroscopy. The prepared trimetallic nanocomposites have shown outstanding performance and stability as a catalyst for the dehydrocoupling of dimethylamine-borane. To the best of our knowledge, the prepared monodisperse PdRuNi@GO nanoparticles have one of the best catalysts with outstanding TOF (Turnover Frequency) value (737.05 1/h) and Ea (55.47 kJ/mol) (activation energy) among all catalysts prepared for dehydrogenation of dimethylamine-borane at low temperatures.
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