Facile Synthesis Of Carbon Nanotubeatural Bentonite Composites As A Stable Catalyst For Styrene Synthesis

摘要

Natural bentonite mineral, without any wet chemical treatment, was used directly to catalyze the growth of multi-wall CNTs and the produced CNTs/bentonite as an integrated composite stably catalyzed the oxidative dehydrogenation reaction over a long period of time; this concept provides a highly economical way for large-scale synthesis of nanocarbons and manufacture of styrene synthesis catalysts.rnSupported iron is one of the most effective catalysts for the chemical vapor deposition (CVD) synthesis of carbon nano-tubes. Usually, Fe ions are artificially impregnated on supports and then activated by calcination-reduction treatments. The resulted iron nanoparticles are catalytically crucial to dissociate the hydrocarbon precursors and simultaneously serve as a structural template for the growth of tubular graphite.