Cobaltosic oxide columnar structure material and preparation method thereof

Abstract

The invention provides a cobaltosic oxide columnar structure material and a preparation method thereof and belongs to the field of inorganic materials. The preparation method specifically includes adding glycerol with a certain volume ratio in a cobaltous acetate aqueous solution, fully mixing, adding an appropriate amount of urea to serve as a precipitating agent, uniformly dispersing, sealing a mixed solution in a high-pressure autoclave, reacting for a certain time at the specific temperature, performing suction filtration, washing, drying, and performing calcination in the air in a muffle furnace to obtain the cobaltosic oxide with the columnar structure. According to the cobaltosic oxide columnar structure material and the preparation method thereof, the operation process of the method is simple, the productivity is high, the cost is low, any surface active agent is not added, the material is free of pollution, the prepared cobaltosic oxide is neat in appearance, uniform in dispersion, high in particle density, and the cobaltosic oxide columnar structure material and the preparation method thereof are expected to be widely used in the fields of lithium ion batteries, supercapacitor, gas sensors, biosensing and catalysis and the like.

Description

technical field

[0001] The invention relates to the field of inorganic materials, in particular, the invention relates to a tricobalt tetroxide material and a preparation method thereof. Background technique

[0002] co 3 o 4 The appearance of the powder is black or gray black, the theoretical cobalt content is 73.43%, the oxygen content is 26.57%, and the bulk density is 0.5~1.5g / cm 3 , tap density 6.0~6.2g / cm 3 . co 3 o 4 As a typical spinel-type transition metal oxide, due to its special structure and properties, it has a wide range of applications in the fields of electrochemistry, catalysis, gas sensing, biosensing, magnetic materials, and electrochromic thin films.

[0003] Co 3 o 4 There are many methods of powder preparation, including solvothermal method, spray thermal decomposition method, reduction oxidation method, uniform precipitation method, mechanical ball milling method, room temperature solid-phase reaction method and hydrothermal method, etc. Among...

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