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 st

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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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[0018] The specific technical solutions of the present invention will be described in connection with the examples.

[0019] First, 6 mmol of hexahydrochloride, 3 mmol zinc chloride and 3 mol nitrogen triacetic acid were added to 35 ml of deionized water, magnetic stirring until completely dissolved, then 5 ml of isopropyl alcohol was added to form a mixed solution, transfer mixed solution to 50 mL The hydrothermal reaction is carried out in the reactor of fluoride, and the reaction temperature is 180 ° C, the reaction time is 6 h, and after the reaction is completed, the zinc cobalt precursor product is washed by water and ethanol, then centrifuged, then put it in a vacuum drying box dry. Finally, the dried cobalt acid zinc product was placed in the muffle furnace to heat up at 3 ° C / min to heat insulation for two hours, and then heated at 10 ° C / min to 500 ° C for an hour to obtain cobalt acid Zinc nanowire.

[0020] Scanning electron microscopy of the resulting product Figu...

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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...

Claims

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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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