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Fe nanowire and preparation method thereof

A technology of iron nanowires and divalent iron salts, which is applied in the field of wet chemical manufacturing of nanomaterials, can solve the problems of high cost and complicated preparation process, and achieve the effects of uniform size, simple synthesis route and easy process

Inactive Publication Date: 2008-02-20
HUAZHONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The preparation process adopted in these patents is more complicated and the cost is higher

Method used

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  • Fe nanowire and preparation method thereof
  • Fe nanowire and preparation method thereof

Examples

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Effect test

Embodiment 1

[0027] Prepare iron nanowires, the preparation steps are:

[0028] Step 1, take iron sulfate by weighing, it is dissolved in distilled water, is made into the solution that iron ion concentration is 0.8 mol / liter;

[0029] Step 2, in the solution that step 1 obtains, add hydrochloric acid or ammoniacal liquor to adjust the pH value of the solution to be 1, then add surfactant polyethylene glycol to the concentration of polyethylene glycol in the solution to be 0.2 grams per liter, add complexing agent lemon Acid to citric acid concentration in the solution is 0.02 grams per liter;

[0030] Step 3, pass nitrogen into the solution prepared in step 2 for use, and this solution is hereinafter represented by solution A;

[0031] Step 4. In another container, weigh NaBH 4 Dissolved in distilled water to form NaBH 4 A solution with a content of 0.02 mol / liter, which is hereinafter represented by solution B;

[0032] Step 5. Under the condition that solution A is stirring, drop so...

Embodiment 2

[0036] Prepare iron nanowires, the preparation steps are:

[0037] Step 1, take ferrous chloride by weighing, it is dissolved in distilled water, is made into the solution that the concentration of ferric ion is 10 mol / liter;

[0038] Step 2, in the solution that step 1 obtains, add hydrochloric acid or ammoniacal liquor to adjust the pH value of solution to be 1, then add surfactant sodium dodecylsulfonate to the solution sodium dodecylsulfonate concentration is 0.2 grams per liter , adding the complexing agent sodium fluoroborate until the concentration of sodium fluoroborate in the solution is 0.02 g / L;

[0039] Step 3, pass nitrogen into the solution prepared in step 2 for use, and this solution is hereinafter represented by solution A;

[0040] Step 4. In another container, weigh NaBH 4 Dissolved in distilled water to form NaBH 4 A solution with a content of 0.01 mol / liter, which is hereinafter referred to as solution B;

[0041] Step 5. Under the condition that solut...

Embodiment 3

[0045] Prepare iron nanowires, the preparation steps are:

[0046] Step 1, take ferric chloride by weighing, it is dissolved in distilled water, is made into the solution that the concentration of ferric ion is 0.8 mol / liter;

[0047] Step 2, in the solution that step 1 obtains, add hydrochloric acid or ammoniacal liquor to adjust the pH value of solution to be 1, then add surfactant sodium sulfamate to solution sodium sulfamate concentration and be 1 gram / liter, add complexing agent ethylene glycol Amine tetraacetic acid is 0.1 gram per liter to the concentration of ethylenediamine tetraacetic acid in the solution;

[0048] Step 3, pass nitrogen into the solution prepared in step 2 for use, and this solution is hereinafter represented by solution A;

[0049] Step 4. In another container, weigh KBH 4 Soluble in ethanol solution, dubbed KBH 4 A solution with a content of 0.001 mol / liter, which is hereinafter referred to as solution B;

[0050]Step 5. Under the condition tha...

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Abstract

The invention relates to an iron nanometer wire and relative preparation, belonging to the wet chemical preparing technique of nanometer metallic material. It is characterized in that: using soluble bivalent ferric salt or trivalent ferric salt as raw material to be dissolved in distilled water to attain ferric salt solution; adding the solution of reducer; using chemical reduction method to reduce said ferric ion into pure iron; the product via filtration and washing is dried in room temperature and under nitrogen gas protection; attaining iron powder with the micro structure of nanometer wire (fiber). The inventive nanometer wire has high purity, uniform size and better dispersion. Said method has simple device, easy operation, and the application for actual production, while it is processed in normal pressure and temperature.

Description

technical field [0001] The invention relates to an iron nanowire (fiber) and a preparation method, belonging to the field of wet chemical manufacturing of nanomaterials. Background technique [0002] In recent years, nano-iron has been widely used in practice, mainly because the physical properties of nano-iron are quite different from those of conventional iron. For example, as a high-performance magnetic recording material, nano-iron powder has high coercivity, saturation magnetization With the advantages of high strength, high signal-to-noise ratio and good oxidation resistance, it can greatly improve the performance of magnetic tape and large-capacity soft and hard disks. The magnetic fluid produced by nano-iron and its alloy powder has excellent performance, and can be widely used in sealing and shock absorption, medical equipment, sound adjustment, light display and other fields. Because iron metal nanopowder has a special absorption effect on electromagnetic waves, i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/24C30B29/02C30B29/62
Inventor 张礼知卢丽蓉艾智慧贾法龙
Owner HUAZHONG NORMAL UNIV