CN1900381B - Preparation device for single-sided anodized aluminum template - Google Patents

Abstract

The invention discloses a preparation device for a single-sided anodized aluminum template. On the four inner surfaces of the square polytetrafluoroethylene shell, there are slots that can be inserted into the lead plate. There are electrolyte flow slots on the lead plate, and the electrolyte container is at the bottom of the shell. On the four sides of the shell There are rectangular step grooves respectively, a rectangular window is formed in the middle of the step groove, there is a gap between the lead plate and the inner side of the rectangular window, and the gap between the lead plate and the inner side of the rectangular window and the electrolyte flow seam on the lead plate form an electrolytic solution. Liquid convection circulation loop. With the multi-window design, the aluminum foil can be attached to each window, so that one side of the aluminum foil is in contact with the air outside the container, and the other side is in contact with the electrolyte solution in the container, which effectively prevents both sides of the aluminum foil from being oxidized at the same time, thereby achieving the preparation of alumina templates. All processes are completed in the device, the electrode distance is strictly determined, the process conditions are repeatable, the oxidation reaction can be carried out in four windows simultaneously, and the production efficiency is high.

Description

Preparation device for single-sided anodized aluminum template

technical field

The invention relates to a device for preparing an alumina template containing a nano-pore structure, in particular to a preparation device for a single-sided anodized alumina template.

Background technique

Alumina template (AAO template) is widely used in the preparation of nanomaterials, and nanowires, nanotubes, and nanorods can be prepared through AAO templates. At present, the preparation device of single-sided AAO template uses insulating grease on one side of the aluminum foil to ensure that only one side is oxidized to form holes. Due to the presence of grease, the electrolyte and aluminum foil are polluted, and the electrode distance is uncertain. These factors lead to The repeatability of the AAO template preparation process conditions is poor, and different processes cannot be completed on the same device, the operation is complicated, and the preparation efficiency is low.

Contents of the invention

In order to overcome the defects of the existing AAO template preparation device for preparing single-sided templates, the object of the present invention is to provide a preparation device for single-sided anodized aluminum templates.

The technical solution adopted by the present invention to solve the technical problem is: on the four inner surfaces of the square polytetrafluoroethylene shell, respectively, there are slots that can be inserted into the lead plate, and the electrolyte flow slit is opened on the lead plate, and the square The bottom of the PTFE shell is the electrolyte container, and there are rectangular step grooves on the four sides of the square PTFE shell, a rectangular window is formed in the middle of the step groove, and there is a gap between the lead plate and the inner side of the rectangular window. There is a gap, and the gap between the lead plate and the inner side of the rectangular window and the electrolyte flow slit above the lead plate form an electrolyte convection circulation loop.

The beneficial effect of the present invention is: adopting the multi-window design, the aluminum foil can be closely attached to each window, so that one side of the aluminum foil is in contact with the air outside the container, and the other side is in contact with the electrolyte solution in the container, which effectively prevents both sides of the aluminum foil from was oxidized to achieve the preparation of single-sided AAO templates. All processes can be completed in the device, the electrode distance is strictly determined, the process conditions are repeatable, the oxidation reaction can be carried out in four windows simultaneously, and the production efficiency is high.

Description of drawings

Fig. 1 is a perspective view of the present invention;

Fig. 2 is a longitudinal sectional structure diagram of the present invention;

Fig. 3 is a top view of the present invention;

Fig. 4 is a side view of the present invention;

Figure 5 is a perspective view of the polytetrafluoroethylene shell of the present invention;

Fig. 6 is the longitudinal sectional structural drawing of polytetrafluoroethylene shell of the present invention;

Fig. 7 is the top view of the polytetrafluoroethylene shell of the present invention;

Fig. 8 is a side view of the polytetrafluoroethylene shell of the present invention;

Fig. 9 is a perspective view of an embodiment of the present invention;

Fig. 10 is a longitudinal sectional structural diagram of an embodiment of the present invention;

Figure 11 is a top view of an embodiment of the present invention;

Figure 12 is a side view of an embodiment of the present invention.

In the figure: 1. PTFE shell, 2. Lead plate, 3. Polycarbonate plate, 4. Aluminum foil, 5. PTFE sealing ring, 6. Electrolyte flow slot, 7. Step groove, 8 .Window, 9. Card slot, 10. Electrolyte container, 11. Magnet.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figures 1 to 12, the four inner surfaces of the square polytetrafluoroethylene shell 1 are respectively provided with slots 9 that can be inserted into the lead plate 2, and the lead plate 2 is provided with electrolyte flow slots 6, the square The bottom of the polytetrafluoroethylene shell 1 is an electrolyte container 10, and the four sides of the square polytetrafluoroethylene shell 1 are respectively provided with a rectangular step groove 7, and a rectangular window 8 is formed in the middle of the step groove 7, and a lead plate 2 There is a gap between the inner side of the rectangular window 8 and the gap between the lead plate 2 and the inner side of the rectangular window 8 and the electrolyte flow slot 6 on the lead plate 2 to form an electrolyte convection circulation loop.

The specific embodiment of the present invention is as follows:

As shown in Figure 9, four thin lead plates 2 are first inserted into the respective slots 9 of the Teflon shell 1 to form the AAO template preparation device shown in Figure 1, and the electrolyte flow slot 6 is located at the time of assembly. On the upper part of the shell, then paste the polytetrafluoroethylene sealing ring 5, the distorted aluminum foil 4 and the polycarbonate sheet 3 in the step groove 7 in sequence, and clamp the polycarbonate sheet 3 with a clip, in which the polytetrafluoroethylene sealing ring 5 is to prevent the electrolyte from leaking from the electrolyte container 10, and the clamped polycarbonate sheet 3 is to make the polytetrafluoroethylene sealing ring 5 and the aluminum foil 4 closely adhere to the step groove 7, so that the seal is good, and the aluminum foil 4 It can withstand the pressure of the electrolyte in the electrolyte container 10 . The four windows are all sealed by this method, and finally the whole embodiment forms a completely sealed container, then the electrolyte is poured into the container, the electrolyte exceeds the electrolyte flow slot 6, and finally the cathode of the power supply is added on the thin lead plate 2, and the The anode of the power supply is added to the aluminum foil 4, and the magnet 12 is placed at the bottom of the electrolyte 10 container, and the whole device is placed on a magnetic stirrer, which is conducive to the formation of a convective circulation loop of the electrolyte under the stirring of the magnet 12, so that the aluminum foil 4 The temperature stabilizes during the oxidation process. Finally, the magnet 12 is rotated to stir the electrolyte. The purpose is to obtain an anodic oxide aluminum template with a nanopore structure in order to oxidize. One side of the aluminum foil is in contact with the air outside the container, and the other side is in contact with the electrolyte solution in the container, which effectively prevents both sides of the aluminum foil from being oxidized at the same time, thereby achieving the purpose of preparing a single-sided AAO template. During the preparation process, the heat generated by the electrodes during the preparation process can be effectively dispersed through the appropriate stirring device, and the flow slots that promote the circulation of the electrolyte are designed to ensure the regularity of the prepared AAO template pores.

The above specific embodiments are used to explain the present invention, rather than to limit the present invention. Within the spirit of the present invention and the protection scope of the claims, any modification and change made to the present invention will fall into the protection scope of the present invention.

Claims (1)

1. A preparation device for a single-sided anodized aluminum formwork, characterized in that: four inner surfaces of a square polytetrafluoroethylene housing (1) are respectively provided with draw-in grooves (9) capable of inserting lead plates (2) ), the lead plate (2) is provided with an electrolyte flow slot (6), the bottom of the square polytetrafluoroethylene shell (1) is an electrolyte container (10), and the square polytetrafluoroethylene shell (1) Rectangular step grooves (7) are respectively arranged on the four sides, and a rectangular window (8) is formed in the middle of the step groove (7). There is a gap between the lead plate (2) and the inner side of the rectangular window (8), and the lead plate ( 2) and the gap between the inner surface of the rectangular window (8) and the electrolyte flow slot (6) above the lead plate (2) to form an electrolyte convection circulation loop.

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