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Preparation method of one-dimensional ferrous oxalate nanowire

A ferrous oxalate and nanowire technology is applied in the field of preparation of energy storage nanomaterials and achieves the effects of simple preparation process, high purity and low production cost

Inactive Publication Date: 2014-07-16
ANHUI UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be found that the iron source for preparing ferrous oxalate at present is ferrous salt (ferrous sulfate or ammonium ferrous sulfate), but there is no report yet for the synthesis of ferrous oxalate with ferric salt as iron source

Method used

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  • Preparation method of one-dimensional ferrous oxalate nanowire
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  • Preparation method of one-dimensional ferrous oxalate nanowire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Dissolve 4.04 grams of ferric nitrate nonahydrate in a mixed solution of 75 ml of ethylene glycol and 25 ml of water, then add 3.9 grams of oxalic acid, then transfer to a polytetrafluoroethylene reactor, place in an oven and heat to 100 oC , reacted for 15 hours to obtain a precipitate;

[0025] (2) Suction filter the precipitate and wash with deionized water and absolute ethanol;

[0026] (3) Put the filter cake in an oven and dry it at 60-80 oC for 12 hours to obtain one-dimensional ferrous oxalate nanowires with a diameter of 150-300 nanometers and a length of 20-100 micrometers.

[0027]

Embodiment 2

[0029] (1) Dissolve 2.70 grams of ferric chloride hexahydrate in a mixed solution of 75 ml of ethylene glycol and 25 ml of water, then add 3.9 grams of oxalic acid, then transfer to a polytetrafluoroethylene reactor, place in an oven and heat to 100 oC, reacted for 15 hours to obtain a precipitate;

[0030] (2) Suction filter the precipitate and wash with deionized water and absolute ethanol;

[0031] (3) Put the filter cake in an oven and dry it at 60-80 oC for 12 hours to obtain one-dimensional ferrous oxalate nanowires with a diameter of 150-300 nanometers and a length of 20-100 micrometers.

Embodiment 3

[0033] (1) Dissolve 4.00 grams of ferric sulfate in a mixed solution of 50 ml of ethylene glycol and 50 ml of water, then add 3.9 grams of oxalic acid, then transfer to a polytetrafluoroethylene reactor, place in an oven and heat to 110 oC, react 24 hours, obtain precipitate;

[0034] (2) The precipitate was centrifuged and washed with deionized water and absolute ethanol;

[0035] (3) Put the product in an oven and dry it at 60-80 oC for 12 hours to obtain one-dimensional ferrous oxalate nanowires with a diameter of 150-300 nanometers and a length of 20-100 micrometers.

[0036]

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Abstract

The invention relates to a preparation method of a one-dimensional ferrous oxalate nanowire, belonging to the technical field of nano energy material preparation. The method comprises the steps of hermetically heating a polyhydric alcohol-water solution of ferric iron salt and oxalic acid or a mixed polyhydric alcohol-water solution of ferric iron salt and oxalic acid to 90-180 DEG C, and reacting for 2-24 hours, thus obtaining the one-dimensional ferrous oxalate nanowire with diameter of 150-300 nanometers and length of 20-100 microns. The method is simple in operation process, is low in production cost and is very suitable for industrial production.

Description

[0001] Technical field [0002] The present invention is a preparation technology field for energy storage nanomaterials, which involves the use of three -valent iron salt to prepare a dimension of metalic acid sarcosiic acid as -the -dimensional metalic acid. Background technique [0003] With the popularization of mobile electronics today and the increase in power consumption, the performance requirements for lithium ion charging batteries have been continuously improved.At present, cobalt materials such as cobaltate, lithium nickel cobaltate, and nickel cobaltite used in lithium -ion batteries are low in cobalt materials such as orthopedic materials such as orthopedic materials in the crust.The electrolyte reacts and a large amount of heat is released, which may cause the battery to burn or even explode. Although lithium manganate is relatively safe, the discharge capacity is small, and the cycle life is low at high temperature.Therefore, the development of positive pole mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C55/07C07C51/41B82Y40/00
CPCB82Y40/00C07C51/412C07C55/07
Inventor 贾勇张群英吴培云方方周双生彭代银
Owner ANHUI UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
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