Solid-phase synthetic method of highly ordered mesoporous carbon material

Abstract

The invention discloses a solid-phase synthetic method of a highly ordered mesoporous carbon material. The solid-phase synthetic method comprises the following steps: 1) mixing a structure-directing agent with a high molecular monomer used as a carbon source, and grinding for 5-180 min at 10-100 DEG C; 2), heating for 0.5-120 h at 40-380 DEG C; 3) under the protection of inert gases, rising the temperature to 500-2,100 DEG C at the temperature rising speed of 1-40 DEG C / min, and roasting for 2-10 h at high temperature. The functionalization mesoporous carbon material is synthetized through the organic-organic self-assembly between the high molecular monomer and the structure-directing agent and between the low polymer of the high molecular monomer and the structure-directing agent, and the mechanical grinding. The solid-phase synthetic method is simple to operate, efficient, and low in cost, and the prepared mesoporous carbon material has a highly ordered mesoporous channel, high specific surface area (500-2,500 m<2> / g and large pore volume (pore diameter of 2.5-20 nm and pore volume of 0.1-2.5 cm <3> / g).

Description

technical field [0001] The invention relates to the field of materials, in particular to a preparation method of mesoporous carbon materials. Background technique [0002] Highly ordered mesoporous materials have important application prospects in the fields of catalysis, adsorption, separation, mass transport, and chemical sensing. In recent years, the synthesis and application of mesoporous carbon materials have been developed rapidly. The reported methods for synthesizing ordered mesoporous carbon materials mainly include hard template method and soft template method. The hard template method, also known as the nano-casting method, is characterized by the use of ordered mesoporous silicon material templates. Carbon precursors are introduced into the silicon mesoporous channels, catalyzed or thermally polymerized, and finally the mesoporous silicon template is removed to obtain "reverse phase" Replicated mesoporous carbon materials. Through this method, a series of meso...

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Problems solved by technology

[0003] The synthesis of mesoporous carbon materials by the hard template method is a complicated, non-environmentally friendly, time-consuming and laborious method due to the need for additional steps to synthesize and remove ordered mesoporous silicon, and is not suitable for large-scale mesoporous carbon materials. Synthesis of porous carbon materials

The organic-organic self-assembly method is generally synthesized by solvent evaporation-induced self-assembly process or solvothermal process, which are all carried out in dilute solution, and the synthesis efficiency is also low. The preparation of direct large-scale mesoporous carbon is also faced with insurmountable difficulties

So far, there is no very convenient method to directly synthesize mesoporous carbon materials, heteroatom-doped mesoporous carbons, metal carbides, and metal oxide mesoporous carbon composites.

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