Preparation method for composite material of transitional metal sulfide loaded by hollow carbon nano tube

Abstract

The invention relates to a preparation method for a composite material of transitional metal sulfide loaded by a hollow carbon nano tube. The method comprises the following steps: using a polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer (P123) as a surface active agent, using trishydroxymethyl methane (Tris) as a pH buffering agent, dissolving the polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer (P123) and the trishydroxymethyl methane (Tris) in deionized water, enabling the mass ratio of P123 to Tris to water to be 1 to 1 to 1,000, and stirring the mixture uniformly to obtain a transparent solution A; taking one of ferric chloride, cobalt chloride, nickel chloride, copper chloride, ammonium molybdate and ammonium tungstate as a metal source, taking dopamine hydrochloride as a carbon source and a nitrogen source, dissolving metal salt and the dopamine hydrochloride into deionized water, and enabling the molar ratio of the metal salt to the dopamine hydrochloride to the deionized water to be 1 to (0.5 to 2) to 4,000 so as to obtain a transparent solution B; mixing the solution B with the solution A in a volume ratio of 2 to 1, and reacting for 24h at room temperature to obtain atrovirens dispersion liquid; enabling the atrovirens dispersion liquid to be subjected to centrifugation, washing and drying, and then roasting at 900 DEG C in the Ar atmosphere.

Description

technical field [0001] The invention belongs to the field of material preparation, specifically using CdS nanowires as templates, coating a layer of polydopamine on the surface, and then loading metal salts on the surface, and obtaining transition metal sulfides supported by hollow carbon nanotubes after high temperature cracking of composite materials. Background technique [0002] In recent years, carbon nanomaterials with hollow structure have large exposed surface area, short ion diffusion path and fast electron transport path, and have been widely used in various fields, such as drug delivery, wastewater treatment, energy, environment and some other fields . The method for synthesizing hollow structures is mainly the template method, which has the following three types: (1) hard template method (2) soft template method (3) self-template method. The formation of structures with different morphologies can be regulated by preparing templates with different morphologies. ...

AI Technical Summary

Problems solved by technology

However, due to its poor electrical conductivity, the improvement of its electrochemical performance is limited, and people often load it on carbon materials with better electrical conductivity to enhance its electrochemical performance.

However, the preparation process of these composite materials is often cumbersome and costly, so it is of great significance to prepare composites of transition metal sulfides and carbon materials through a simple and low-cost method

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