Preparation method of porous carbon base multi-ingredient nanometer composite material

Abstract

The invention discloses a preparation method of a porous carbon base multi-ingredient nanometer composite material. The method comprises the following steps of performing pretreatment on the natural biological materials with finely grade porous structures; using the materials as templates; performing step immersion by metal salt solution and atmosphere calcination treatment; preparing the multi-ingredient nanometer composite material which has the biological template finely grading structure, uses porous carbon as base bodies and carries different-ingredient nanometer units. The method provided by the invention has the advantages that the used templates are from wide easy-to-obtain natural biological materials; in addition, the carbon source can be easily provided; by selecting different metal salt solution and regulating the process parameters of different soaking processes and calcination processes, the control on multiple ingredients and fine micro-nanometer grading structures of final composite materials can be realized. The preparation method provided by the invention has the advantages that the operation is simple; the cost is low; in addition, flexibility and controllability are realized; the prepared nanometer composite material has wide application prospects in the fields of catalysis, sensing, lithium batteries and the like.

Description

technical field [0001] The invention relates to a method for preparing a multi-component nanocomposite material, in particular to a porous carbon formed by using a carbon material with a hierarchical porous structure as a matrix, and compounding nanostructures of different types of metals and metal compounds on the porous carbon matrix The invention discloses a method for preparing a matrix multi-component nanocomposite material, belonging to the technical field of carbon matrix composite materials. Background technique [0002] The industrial technology of modern civilization has provided sufficient products and brought great convenience to human life, but there are also environmental problems such as air pollution, water pollution, and low energy utilization efficiency. How to prepare environmentally friendly materials that can efficiently detect gases, promote the effective degradation of pollutants, improve energy utilization efficiency, and especially realize the functi...

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Problems solved by technology

After searching, it is found that there are many patent publications on carbon-based nanomaterials. For example, in the patent with the publication number CN105702923A titled "A Manganese Oxide / Carbon / Carbon Nanotube Nano-Hybrid Material and Its Preparation Method and Application", manganese oxide The precursor solution is dispersed in a thermosetting resin monomer solvent, and the resin monomer can be used as a carbon source at the same time; then carbon nanotubes are introduced, and the solid solidified by the double bond is crushed and calcined at a high temperature to obtain, but this method cannot provide Fine pore structure; in the patent with the publication number CN102951677A titled "Method for preparing tin dioxide micro-nano materials based on atmospheric pressure chemical vapor deposition method", the process for preparing carbonaceous materials and nano-tin dioxide composites is complicated, and Lack of obvious advantages in terms of application

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