CN2837312Y - Electrolytic cell for electrochemical deposition nanowire array - Google Patents

Electrolytic cell for electrochemical deposition nanowire array Download PDF

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Publication number
CN2837312Y
CN2837312Y CN 200520071475 CN200520071475U CN2837312Y CN 2837312 Y CN2837312 Y CN 2837312Y CN 200520071475 CN200520071475 CN 200520071475 CN 200520071475 U CN200520071475 U CN 200520071475U CN 2837312 Y CN2837312 Y CN 2837312Y
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China
Prior art keywords
base
nanowire array
utility
model
cathode
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Expired - Fee Related
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CN 200520071475
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Chinese (zh)
Inventor
贾冲
林青
姚连增
蔡维理
李晓光
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University of Science and Technology of China USTC
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University of Science and Technology of China USTC
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Abstract

The utility model relates to an electrolytic cell for an electrochemical-deposition nanowire array. The utility model is characterized in that the electrolytic cell for electrochemical-deposition nanowire array is composed of a vertical cylindrical tank body, a rubber washer, a circular sheet-shaped cathode and a base which are orderly spliced from top to bottom, wherein the lower part of the vertical cylindrical tank body is an interface with internal screw threads; the upper part of the base is external screw threads matched with the internal screw threads of the interface of the tank body, a small hole is arranged on the base, and a cathode conducting wire passes through the base through the small hole to be connected with the circular sheet-shaped cathode arranged on the base; an alumina mould plate coated with a conductive metal film is arranged between the rubber washer and the cathode on the base; an anode is aligned to the just upper part of the cathode to be arranged in electroplating solution. The utility model can be adjusted to proper tightness through the screw threads matched with each other without solution leakage or compression failure to the mould plate; the shape and the size of an inner hole of the rubber washer determines the shape and the size of a nanowire array so that the shape and the size of the nanowire array can be controlled; the utility model adopts the vertical cylindrical tank body to carry out deposition in a vertical direction so that current has uniform desity without reactive dead corners. The utility model can conveniently and effectively carry out electrochemical deposition for the nanowire array in the nano alumina mould plate.

Description

A kind of electrolyzer that is used for the electrochemical deposition nano-wire array
Technical field:
The utility model belongs to the device for preparing nano-wire array, particularly relate to a kind of in nano-alumina template the electrolyzer of electrochemical deposition nano-wire array.
Background technology:
1994 " Physical Experiment " (the 14th volume, the 6th phase, the 261st page) in mentioned traditional single pond electrolytic cell assembly, during use, deposit in the direct immersion plating liquid of anode and cathode, because alumina formwork has thin and crisp characteristics, when depositing with this electrolyzer, the stationary phase of template is worked as difficulty, and can not satisfy unidirectional galvanized requirement, electric current distribution is extremely uneven, is easy to generate the reaction dead angle.A kind of two ponds electrolyzer that has improved is mentioned in 2003 " luminous journal " (24th volume, the 2nd phase, the 203rd page), when carrying out the galvanic deposit nano-wire array with this electrolyzer, alumina formwork is difficult to fix equally, makes a mess of template through regular meeting, and through regular meeting the phenomenon of leakage takes place because driving fit is bad; Because this electrolyzer is a rectangle or foursquare, and be to carry out electrolysis or galvanized in the horizontal direction, so current density is still even inadequately, the dead angle also can appear reacting sometimes, and the cathode hydrogen evolution phenomenon often appears in the electroplating process, and cause bubble to accumulate in the hole of alumina formwork, untimely discharge meeting seriously hinders metal ion and moves to negative electrode, cause nano wire very loose at last, even can only be deposited on the surface of alumina formwork.
Technology contents:
The utility model provides a kind of electrolyzer that is used for the electrochemical deposition nano-wire array, to solve the gas bubble blockage problem of the fixing difficulty of template, cell body leakage, electric current distribution inequality and nano pore in the prior art.
This electrolyzer that is used for the electrochemical deposition nano-wire array, it is characterized in that: by vertical cylinder shape cell body, rubber cradle, disk shape negative electrode and base splice successively from top to bottom and form, the bottom of described vertical cylinder shape cell body is the interface that has internal thread, the outside screw of the top of base for matching with cell body interface internal thread, have aperture on the base, the disk shape negative electrode of cathode wire on aperture passes base and places base is connected, the alumina formwork that is coated with conductive metal film places between the negative electrode on rubber cradle and the base, and anode places electroplate liquid directly over aiming at negative electrode.
During use, the alumina formwork that is coated with conductive metal film is placed between disk shape negative electrode and the rubber cradle, be coated with one of conductive metal film and face down, it is suitable that the hickey between base and the cell body is adjusted to degree of tightness, makes it both no leakages, do not damage template again by pressure; Electroplate liquid is injected cell body, and anode places electroplate liquid directly over aiming at negative electrode, makes to electroplate in the vertical direction takes place; Connect circuit, open the power switch of potentiostat, regulate suitable current or voltage, powered-down after plating for some time, electroplate liquid in the cell body is poured out, turned on device cell body is separated with base, the alumina formwork that has plated nano-wire array is taken out gently, be placed in the baking oven with distilled water flushing, be lower than 60 ℃ of oven dry down.
Compared with prior art, because the utility model device interface that the employing internal and external screw thread matches between base and cylindric cell body, can be suitable with being adjusted to degree of tightness between alumina formwork and the rubber cradle, make it both no leakages, do not damage template again by pressure, solved leakage and template and be difficult to the fixed problem; Above nano-alumina template, add a rubber cradle, both can reduce the damage of mechanical stress, can avoid metal directly to be plated on the template aluminium ring on every side again template; The interior hole shape of rubber cradle and size have determined the shape and the size of nano-wire array, thereby make the shape and the controlled amount of nano-wire array; Adopt vertical cylinder shape cell body to deposit at vertical direction, make current density more even, avoided the generation at reaction dead angle, and the gas that negative electrode produces can be discharged by the template hole at any time, avoided the gas bubble blockage phenomenon of nano pore, guaranteed that the stable of electrochemical reaction carries out in the groove.Adopt the utility model electrolytic cell assembly to make things convenient for and electrochemical deposition nano-wire array in nano-alumina template effectively.
Description of drawings:
Fig. 1 is the electrolytic cell assembly synoptic diagram of the utility model electrochemical deposition nano-wire array in nano-alumina template.
Embodiment:
Embodiment 1:
At first, by shown in Figure 1 in nano-alumina template the electrolytic cell assembly synoptic diagram of electrochemical deposition nano-wire array assemble electrolyzer, its vertical cylinder shape cell body 6 and base 1 all adopt not the insulating material with the electroplate liquid reaction, make as plastics, synthetic glass or tetrafluoroethylene etc.
Shape and size according to the nano-alumina template that will obtain, design electrolyzer: the nano-wire array of desiring in the alumina formwork of a slice external diameter 24mm, to obtain central diameter 10mm with electrochemical deposition method, vertical cylinder shape cell body 6 can adopt the cylindrical material of high 80mm, diameter 60mm, high 60mm is made on top, the cylinder of internal diameter 50mm, high 15mm is made in the bottom, internal diameter 25mm has the middle null interface of internal thread, leave the dividing plate that a thickness is 5mm between middle null interface and the cell body top, the dividing plate center has the aperture of internal diameter 10mm; The cylindrical material of high 20mm of base 1 usefulness, diameter 60mm, the externally threaded interface that top is made external diameter 25mm, high 15mm, is complementary with the cell body internal thread, the duct of opening a diameter 3mm at position, base axis, the copper electrode 2 that copper conductor 8 passes the external diameter 24mm on aperture and top, high 5mm from the base below welds together, and is glued together between copper electrode 2 and the base 1; Packing ring 4 employing rubber etc. are made the annulus of external diameter 24mm, internal diameter 10mm, thick 3mm than soft material.Alumina formwork 3 and packing ring 4 are stacked on the copper electrode plane from bottom to top successively, and the one side that alumina formwork is coated with conductive metal film contacts with copper electrode; Screw thread between cell body 6 and the base 1 is screwed to the degree of tightness appropriateness, makes it both no leakages, do not damage template again by pressure.Rubber cradle both can reduce the damage of mechanical stress to template, can avoid electroplate liquid directly to deposit on the aluminium ring around alumina formwork again.
It is as follows to utilize the utility model electrolytic cell assembly to carry out electrodeposition process:
Get 100ml electroplate liquid 5 and inject cell body 6, anode 7 inserts the electroplate liquid from cell body top, connects circuit, opens the power switch of potentiostat 9, regulates suitable current or voltage, and for example: the Ag electroplate liquid (contains 10g/l AgNO 3With 10g/l H 3BO 3) mode of deposition be 2mA/cm 2Electroplate half an hour; Ag 2The Te electroplate liquid (contains 0.1M HTeO 2 +With 0.02M AgNO 3, the pH value of solution is by 5M HNO 3Be adjusted to about 1) mode of deposition be 2mA/cm 2Electroplated one hour.Owing to adopted vertical cylinder shape cell body to deposit at vertical direction, make electric current distribution more even, the problem at dead angle can not appear reacting, simultaneously, the bubble that negative electrode produces can run up out from the template hole at any time, can not stop up nano pore, thereby guarantee that the stable of electrochemical reaction in the groove carries out.
Electroplate and finish the back powered-down, electroplate liquid in the cell body is poured out, turning on device makes cell body separate with base, the alumina formwork and the rubber cradle that have plated nano-wire array are taken out gently, behind distilled water flushing, the alumina formwork that has plated nano-wire array is placed baking oven, be lower than 60 ℃ of oven dry down.With field emission scanning electron microscope products therefrom is carried out pattern and characterize as can be seen, behind employing the utility model electrolytic cell assembly, the nano-wire array marshalling of prepared by electrodeposition in nano-alumina template, very fine and close, filling ratio is near 100%.This electrolyzer can also be used during high temperature electroplates, as with containing Cd 2+When in alumina formwork, electroplating the CdS nano-wire array,, add the oil bath temperature control and between 110~120 ℃, get final product as long as design cell body with polytetrafluoroethylmaterial material with the dimethyl sulfoxide solution of S powder.
Adopt this convenient and practical electrolyzer, we in alumina formwork electrochemical deposition a large amount of fine metals and semi-conductive nano-wire array.

Claims (1)

1, a kind of electrolyzer that is used for the electrochemical deposition nano-wire array, it is characterized in that: by vertical cylinder shape cell body, rubber cradle, disk shape negative electrode and base splice successively from top to bottom and form, the bottom of described vertical cylinder shape cell body is the interface that has internal thread, the outside screw of the top of base for matching with cell body interface internal thread, have aperture on the base, the disk shape negative electrode of cathode wire on aperture passes base and places base is connected, the alumina formwork that is coated with conductive metal film places between the negative electrode on rubber cradle and the base, and anode places electroplate liquid directly over aiming at negative electrode.
CN 200520071475 2005-04-28 2005-04-28 Electrolytic cell for electrochemical deposition nanowire array Expired - Fee Related CN2837312Y (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
CN 200520071475 CN2837312Y (en) 2005-04-28 2005-04-28 Electrolytic cell for electrochemical deposition nanowire array

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CN2837312Y true CN2837312Y (en) 2006-11-15

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104087976A (en) * 2014-07-02 2014-10-08 河北工业大学 Preparation method of Sm-Co alloy amorphous magnetic nanowire array
CN108614026A (en) * 2018-05-02 2018-10-02 重庆大学 Electrochemistry teaching or testing equipment and its assemble method
CN111996560A (en) * 2020-07-10 2020-11-27 深圳先进技术研究院 Metal wire preparation method, metal wire and clamp
CN112176388A (en) * 2020-09-21 2021-01-05 深圳拓扑精膜科技有限公司 Electroplating clamping device and method for preparing patterned nanowire by using same
CN113862739A (en) * 2021-11-15 2021-12-31 盐城工学院 Electrolytic tank for electrochemical deposition of nanowire array
CN114504952A (en) * 2022-03-24 2022-05-17 清华大学 Double-sided conductive film filtering assembly and water purification method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104087976A (en) * 2014-07-02 2014-10-08 河北工业大学 Preparation method of Sm-Co alloy amorphous magnetic nanowire array
CN108614026A (en) * 2018-05-02 2018-10-02 重庆大学 Electrochemistry teaching or testing equipment and its assemble method
CN111996560A (en) * 2020-07-10 2020-11-27 深圳先进技术研究院 Metal wire preparation method, metal wire and clamp
CN112176388A (en) * 2020-09-21 2021-01-05 深圳拓扑精膜科技有限公司 Electroplating clamping device and method for preparing patterned nanowire by using same
CN113862739A (en) * 2021-11-15 2021-12-31 盐城工学院 Electrolytic tank for electrochemical deposition of nanowire array
CN114504952A (en) * 2022-03-24 2022-05-17 清华大学 Double-sided conductive film filtering assembly and water purification method

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