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Kinetics-Controlled Synthesis of Ordered Mesoporous Carbon Single Crystals from Liquefied Wood

机译：Kinetics-Controlled Synthesis of Ordered Mesoporous Carbon Single Crystals from Liquefied Wood

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摘要

The architectures of carbon materials prepared via soft-templating methodgreatly depend on the assembly pattern of micelles. Herein, a kineticscontrolledstrategy is developed to fabricate ordered mesoporous carbon(OMC) single crystals from liquefied wood by using melamine to regulate thepolymerization rate of carbon precursors, which further affects the assemblyprocess. Due to the slow hydroxymethylation reaction of melamine withformaldehyde in acid, the addition of melamine can decelerate the reactionkinetics to produce no seed nuclei at the initial stage, which favors thecomposite micelles to orderly aggregate and further grow in a layer-by-layerpattern to form OMC single crystals after carbonization. The OMC singlecrystals with high specific surface areas (733 m~2 g~(?1)), uniform mesopore size(3.2 nm), and ordered Im3m mesostructure are ideal supports to couple withAg nanoparticles to act as efficient catalysts, which exhibits remarkable catalyticperformance for the reduction of 4-nitrophenol.

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