CN1621338A - Synthesis method of iron nanotube array - Google Patents

Synthesis method of iron nanotube array Download PDF

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Publication number
CN1621338A
CN1621338A CNA2004100989462A CN200410098946A CN1621338A CN 1621338 A CN1621338 A CN 1621338A CN A2004100989462 A CNA2004100989462 A CN A2004100989462A CN 200410098946 A CN200410098946 A CN 200410098946A CN 1621338 A CN1621338 A CN 1621338A
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iron
nanotube array
boric acid
electrolytic solution
ferrous sulfate
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CN100390046C (en
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曹化强
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Tsinghua University
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Tsinghua University
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Abstract

The present invention relates to the preparation process of nanometer metal material. The nanometer iron tube array synthesizing process includes compounding electrolyte liquid with ferrous sulfate, boric acid and ascorbic acid at room temperature; setting the electrolyte liquid in an electrolytic bath, setting the porous alumina film, which has one side with conducting gold or silver film as cathode connected to the negative pole of power supply, into the electrolyte liquid, inserting the metal iron rod connected to the positive pole of power supply as the anode into the electrolyte liquid, and electrolysis in constant current strength of 10-20 mA. The said process can synthesize nanometer iron tube array of nanometer iron tube in outer diameter of 80-100 nm, inner diameter of 30-50 nm and total length up to 60 microns. The present invention is expected to find its application in microelectronic device, magnetic record and other fields.

Description

A kind of synthetic method of iron nanotube array
Technical field
The present invention relates to a kind of preparation of metal nano material, particularly relate to a kind of synthesis technique and method of iron nanotube array.
Background technology
Iron is a kind of metallic substance commonly used.Very important use is arranged in fields such as magnetic recording, electron transport.Iron nanotube array belongs to a kind of metallic conduction and with bigger coercitive magneticsubstance, no matter in academic research or in application facet, all has great importance.The synthetic patent report that iron nanotube array is not arranged at present as yet.
Summary of the invention
The object of the present invention is to provide the method for the synthetic iron nanotube array of a kind of easy preparation.The present invention is achieved through the following technical solutions: a kind of synthetic method of iron nanotube array is characterized in that this method undertaken by following step:
A. with ferrous sulfate (FeSO 47H 2O), boric acid (H 3BO 3), xitix is raw material, at room temperature, the aqueous solution that preparation contains ferrous sulfate, boric acid, xitix is as electrolytic solution, ferrous sulfate (FeSO 47H 2O) concentration can restrain at 14-20/100 milliliters of scopes, boric acid (H 3BO 3) concentration can restrain at 5-6/100 milliliters of scopes, ascorbic acid concentrations can restrain at 0.1-0.5/100 milliliters of scopes.
B. the multiaperture pellumina one side is dried then with metal spraying or silver slurry coating and obtain golden film or silverskin, as the negative electrode of electrochemical deposition reaction;
C. above-mentioned multiaperture pellumina after above-mentioned processing is placed in the electrolyzer, electrolytic solution is placed on the another side of film, and an iron plate is inserted in the electrolytic solution anode as electrochemical reaction;
D. at room temperature, connect power supply and control current and be (scope can at the 10-20 milliampere), certain hour (scope can at 10-110 minute) can obtain iron nanotube array.
Raw materials used being easy to get in the synthetic method of the present invention, technology is easy, can synthesize the about 80-100 nanometer of external diameter, the about 30-50 nanometer of internal diameter, the longest iron nanotube that reaches 60 microns of length.
Description of drawings
Fig. 1: be the iron nanotube electron scanning micrograph of embodiment 1:
A---magnification is 1,000 times;
B---magnification is 1,000 times;
C---magnification is 8,000 times;
D---magnification is 20,000 times, promptly 20,000 times;
E---magnification is 2,000 times;
F---magnification is 10,000 times, promptly 10,000 times.
Fig. 2: be the iron nanotube X-ray diffractogram of embodiment 2.
Fig. 3: be the iron nanotube X-ray diffractogram of embodiment 3.
Embodiment
Below by specific embodiment the present invention further is illustrated.
Embodiment 1:
---with ferrous sulfate (FeSO 47H 2O) (14g/100ml), boric acid (H 3BO 3) (5g/100ml), xitix (0.1g/100ml) is raw material, at room temperature, the preparation sulfur acid is ferrous, the aqueous solution of boric acid, xitix is as electrolytic solution.
---multiaperture pellumina is simultaneously dried the negative electrode that reacts as electrochemical deposition then with silver slurry coating;
---above-mentioned multiaperture pellumina after above-mentioned processing is placed in the electrolyzer, electrolytic solution is placed on the another side of film, and an iron plate is inserted in the electrolytic solution anode as electrochemical reaction;
---at room temperature, connecting power supply and control current is 10 milliamperes, and the time is about 1 hour 45 minutes, can obtain iron nanotube array.
By 60 microns of visible this nanotube length of Fig. 1 a, by Fig. 1 c, d, visible this nanotube external diameter of f is about the 80-100 nanometer, and internal diameter is about the 30-50 nanometer, and this nanotube presents array as seen from Figure 1.
Embodiment 2:
---with ferrous sulfate (FeSO 47H 2O) (14g/100ml), boric acid (H 3BO 3) (5g/100ml), xitix (0.1g/100ml) is raw material, at room temperature, the preparation sulfur acid is ferrous, the aqueous solution of boric acid, xitix is as electrolytic solution.
---with metal spraying of multiaperture pellumina, as the negative electrode of electrochemical deposition reaction;
---above-mentioned multiaperture pellumina after above-mentioned processing is placed in the electrolyzer, electrolytic solution is placed on the another side of film, and an iron plate is inserted in the electrolytic solution anode as electrochemical reaction;
---at room temperature, connecting power supply and control current is 10 milliamperes, and the time is about 15 minutes, can obtain iron nanotube array.
The constituent of this nanotube belongs to iron as seen from Figure 2.
Embodiment 3:
---with ferrous sulfate (FeSO 47H 2O) (14g/100ml), boric acid (H 3BO 3) (5g/100ml), xitix (0.1g/100ml) is raw material, at room temperature, the preparation sulfur acid is ferrous, the aqueous solution of boric acid, xitix is as electrolytic solution.
---with metal spraying of multiaperture pellumina, as the negative electrode of electrochemical deposition reaction;
---above-mentioned multiaperture pellumina after above-mentioned processing is placed in the electrolyzer, electrolytic solution is placed on the another side of film, and an iron plate is inserted in the electrolytic solution anode as electrochemical reaction;
---at room temperature, connecting power supply and control current is 10 milliamperes, and the time is about 18 minutes, can obtain iron nanotube array.
The constituent of this nanotube belongs to iron as seen from Figure 3.
Embodiment 4:
---with ferrous sulfate (FeSO 47H 2O) (20g/100ml), boric acid (H 3BO 3) (6g/100ml), xitix (0.5g/100ml) is raw material, at room temperature, preparation electrolytic solution comprises the aqueous solution of ferrous sulfate, boric acid, xitix.
---with metal spraying of multiaperture pellumina, as the negative electrode of electrochemical deposition reaction;
---above-mentioned multiaperture pellumina after above-mentioned processing is placed in the electrolyzer, electrolytic solution is placed on the another side of film, and an iron plate is inserted in the electrolytic solution anode as electrochemical reaction;
---at room temperature, connecting power supply and control current is 20 milliamperes, and the time is about 10 minutes, can obtain iron nanotube array.

Claims (2)

1, a kind of synthetic method of iron nanotube array is characterized in that, this method is carried out as follows:
A. with ferrous sulfate (FeSO 47H 2O), boric acid (H 3BO 3), xitix is raw material, at room temperature, the aqueous solution that preparation contains ferrous sulfate, boric acid, xitix is as electrolytic solution, ferrous sulfate (FeSO 47H 2O) concentration can restrain at 14-20/100 milliliters of scopes, boric acid (H 3BO 3) concentration can restrain at 5-6/100 milliliters of scopes, ascorbic acid concentrations can restrain at 0.1-0.5/100 milliliters of scopes;
B. the multiaperture pellumina one side is dried then with metal spraying and obtain golden film, as the negative electrode of electrochemical deposition reaction;
C. above-mentioned multiaperture pellumina after above-mentioned processing is placed in the electrolyzer, electrolytic solution is placed on the another side of film, and an iron plate is inserted in the electrolytic solution anode as electrochemical reaction;
D. at room temperature, connect power supply and control current and be (scope can at the 10-20 milliampere), certain hour (scope can at 10-110 minute) can obtain iron nanotube array.
According to the synthetic method of the described a kind of iron nanotube array of claim 1, it is characterized in that 2, step b obtains silverskin for multiaperture pellumina is simultaneously dried then with silver slurry coating, as the negative electrode of electrochemical deposition reaction.
CNB2004100989462A 2004-12-17 2004-12-17 Synthesis method of iron nanotube array Expired - Fee Related CN100390046C (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100432304C (en) * 2006-12-22 2008-11-12 南京大学 Electric method for quick preparation for nanotube
CN102021654A (en) * 2010-12-06 2011-04-20 皖南医学院 Method for preparing magnetic nanotube
CN101692364B (en) * 2009-10-12 2012-09-05 钢铁研究总院 One-dimensional permanent magnetic nano-material, in which hard magnetic tubes are coated with soft magnetic wires and preparation method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1147427C (en) * 1999-12-22 2004-04-28 南京大学 Process for synthesizing nm carbon tubes containing nm metal wires
JP3616819B2 (en) * 2002-11-14 2005-02-02 独立行政法人物質・材料研究機構 Method for producing boron / carbon / nitrogen nanotubes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100432304C (en) * 2006-12-22 2008-11-12 南京大学 Electric method for quick preparation for nanotube
CN101692364B (en) * 2009-10-12 2012-09-05 钢铁研究总院 One-dimensional permanent magnetic nano-material, in which hard magnetic tubes are coated with soft magnetic wires and preparation method thereof
CN102021654A (en) * 2010-12-06 2011-04-20 皖南医学院 Method for preparing magnetic nanotube
CN102021654B (en) * 2010-12-06 2012-04-25 皖南医学院 Method for preparing magnetic nanotube

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