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Preparation method of zinc cobaltate nanowire

A technology of zinc cobaltate and nanowires, which is applied in nanotechnology, chemical instruments and methods, cobalt compounds, etc., can solve problems such as high risk of experiments, great environmental hazards, and harmful water bodies, and achieve abundant raw material resources, low prices, Produce stable effects

Pending Publication Date: 2021-03-23
CIVIL AVIATION FLIGHT UNIV OF CHINA
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Problems solved by technology

The material hexamethylenetetramine reacted by this method is flammable and corrosive, and it is mixed with an oxidant to form an explosive mixture, which is not easy to store and has a high risk of experimentation. It releases irritating ammonia, which is decomposed into toxic and corrosive fumes when heated, and is harmful to water bodies.

Method used

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  • Preparation method of zinc cobaltate nanowire
  • Preparation method of zinc cobaltate nanowire
  • Preparation method of zinc cobaltate nanowire

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Embodiment Construction

[0018] The specific technical solutions of the present invention are described in conjunction with the examples.

[0019] First, add 6mmol cobalt chloride hexahydrate, 3mmol zinc chloride and 3mol nitrogen triacetic acid into 35ml deionized water, stir magnetically until completely dissolved, then add 5ml isopropanol to form a mixed solution, transfer the mixed solution to 50ml polytetrafluoroethylene The hydrothermal reaction is carried out in a vinyl fluoride reactor, the reaction temperature is 180°C, and the reaction time is 6h. After the reaction is completed, it is cooled to room temperature. The zinc cobaltate precursor product is obtained by washing with water and ethanol and centrifuging, and then placed in a vacuum drying oven. dry. Finally, put the dried zinc cobaltate product in a muffle furnace and heat it up to 150°C at 3°C / min for two hours, then heat it up to 500°C at 10°C / min for one hour to obtain mesoporous cobaltate Zinc nanowires.

[0020] The scanning e...

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Abstract

The invention provides a preparation method of a zinc cobaltate nanowire, which comprises the following steps of adding cobalt chloride hexahydrate, zinc chloride and nitrilotriacetic acid into deionized water, and magnetically stirring until complete dissolution, adding isopropanol to form a mixed solution, transferring the mixed solution into a polytetrafluoroethylene reaction kettle for hydrothermal reaction, cooling to room temperature after the reaction is completed, washing a zinc cobaltate precursor product with water and ethanol, centrifuging to obtain a product, and drying the productin a vacuum drying oven, and heating the dried zinc cobaltate product in a muffle furnace to obtain the mesoporous zinc cobaltate nanowire. The preparation method provided by the invention is rich inraw material resource, low in price, stable in production, high in yield, environment-friendly and convenient for industrial production. The prepared zinc cobaltate nanowire has a porous hollow structure, can effectively adapt to volume expansion and shorten the transfer distance of Li<+> and electrolyte, and can also adapt to huge volume change in the Li<+> insertion / extraction process.

Description

technical field [0001] The invention relates to the technical field of zinc cobaltate nanowires, in particular to a preparation method of zinc cobaltate nanowires. Background technique [0002] The use of electrochemical reactions for energy storage and conversion is currently the most promising way to solve the energy crisis. Compared with other energy storage methods, secondary batteries have the advantages of high specific energy, long cycle life, no memory effect and no pollution. , and lithium battery has outstanding advantages such as light weight, large energy storage, high power, low self-discharge and low maintenance cost, and has become one of the most promising energy storage devices. A typical lithium battery consists of several parts: positive electrode, negative electrode, electrolyte, separator and case. The anode material is a key factor in determining battery performance. In order to improve the electrochemical performance of lithium batteries, a large num...

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Application Information

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IPC IPC(8): C01G51/00B82Y40/00
CPCC01G51/40B82Y40/00C01P2004/16C01P2004/03C01P2002/72
Inventor 王海斌郑永军王茂华瞿忱陈现涛贾井运孙强
Owner CIVIL AVIATION FLIGHT UNIV OF CHINA
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