One-dimensional metal oxide/carbide composite material and preparation method thereof

Abstract

The embodiment of the invention relates to the field of synthesis of inorganic nano functional materials, in particular to a one-dimensional metal oxide / carbide composite material and a preparation method thereof. The invention provides a preparation method of a one-dimensional metal oxide / carbide composite material. The preparation method comprises the following steps: calcining a one-dimensionalmetal organic framework material, wherein the calcining temperature is 200 to 600 DEG C. According to the preparation method provided by the invention, the one-dimensional metal organic framework material is used as a precursor for the first time, and the one-dimensional metal oxide / carbide composite material can be obtained through one-step calcination pyrolysis; the obtained one-dimensional metal oxide / carbide composite material still maintains good one-dimensional morphology and has a large specific surface area, high dispersity, more exposed active sites and good conductivity; the preparation method is simple, low in energy consumption, low in raw material cost and easy for large-scale production.

Description

technical field [0001] The invention relates to the field of synthesis of inorganic nano functional materials, in particular to a one-dimensional metal oxide / carbide composite material and a preparation method thereof. Background technique [0002] Porous carbon materials have very important applications in the fields of electrocatalysis, batteries, capacitors, sensors, and gas adsorption due to their large specific surface area, good adsorption, and electrical conductivity. However, pure carbon materials lack active sites that can be directly used, so they are usually used as carrier materials and need to be combined with other active materials to achieve wider applications. In order to solve this problem, the commonly used method is to introduce active substances, mainly including noble metals, transition metal oxides, etc., and compound them with porous carbon materials by loading methods to improve their catalytic, adsorption and electrochemical activities. However, the...

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Problems solved by technology

However, the synthesis of carbides usually adopts a high-temperature thermal reduction method. The high-temperature environment used generally needs to reach above 1000°C, which consumes a lot of energy. The generated carbides are often block materials, which do not have good catalytic, adsorption and electrolytic chemical activity

However, although one-dimensional porous carbides with high activity can be obtained by using the template method, the synthesis process is very complicated.

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