A kind of mesoporous cobalt oxide/manganese oxide/carbon composite nanomaterial, preparation method and application thereof

Abstract

The invention discloses a mesoporous cobalt oxide / manganese oxide / carbon composite nanometer material, a preparation method and an application thereof. The preparation method comprises the steps of firstly mixing a surface active agent, a cobalt source, a manganese source, a silicon source, an organic macromolecule polymer and a solvent to form a homogeneous solution, then pouring the homogeneous solution into a reaction vessel, and performing cross-linking in a drying oven; then roasting an acquired transparent membranous substance to acquire a compound of cobalt oxide, manganese oxide, silicon oxide and carbon; and finally removing the silicon oxide through alkali washing, and acquiring a mesoporous cobalt oxide / manganese oxide / carbon composite nanometer material after filtering, washing and drying. The preparation method is simple and suitable for large-scale production. The specific surface area of the acquired composite material is 105-298m<2> / g, the pore volume is 0.2-0.65cm<3> / g, and the pore diameter is 2.2-4.6nm. The composite nanometer material can act as an electrode material used for manufacturing a supercapacitor.

Description

technical field [0001] The invention belongs to the technical field of inorganic nanomaterials, and specifically relates to a mesoporous cobalt oxide / manganese oxide / carbon composite nanomaterial, a preparation method and an application thereof. Background technique [0002] In the 21st century, human beings are facing two important problems of energy crisis and environmental pollution, so the development and research of clean energy has far-reaching significance. Among them, all kinds of vehicles account for about 40% of oil consumption, and 42% of global air pollution comes from the emissions of traffic vehicles. The country has issued many policies to encourage everyone to buy new energy vehicles. Countries around the world attach great importance to the development of electric vehicles. my country's 863 plan also lists the development of electric vehicles as an important development direction. The research on the power battery as vehicle power has become the main bottle...

AI Technical Summary

Problems solved by technology

[0007] At present, cobalt oxide, or a composite of cobalt oxide and other materials has been prepared by various methods, but few people have made a composite material of mesoporous bimetallic cobalt and manganese, and then applied it in electrochemical examples

At the same time, the process of preparing cobalt oxide is relatively cumbersome. For example, the requirements for equipment through mechanical grinding are relatively high. The preparation process through hydrolysis is not easy to control, and the specific surface area of ​​the synthesized materials is relatively not very high.

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