Device and method for preparing anodic aluminum oxide template with large pore diameter

Abstract

The invention discloses a device and a method for preparing an anodic aluminum oxide template with large pore diameter, and belongs to the technical field of nanomaterial preparation. The device is provided with an ice water bath tank, a positive side electrolytic bottle, a reverse side electrolytic bottle, an anode and an anode outgoing line, a cathode and a cathode outgoing line, a thermometer, an aluminum sheet clamping suite and a magnetic stirrer; a solution channel of the reverse side electrolytic bottle and a solution channel of the positive side electrolytic bottle are in dead locking connection to form an integrated electrolytic bottle through the aluminum sheet clamping suite, an aluminum sheet is used as the anode, and a platinum electrode is used as the cathode; the pore-diameter anodic aluminum oxide template adopts a secondary anodic oxidation method, and citric acid as a stabilizer is mixed in a phosphoric acid with extremely low concentration to prepare a highly-ordered large plate; the cathode extends into the positive side electrolytic bottle, the magnetic stirrer is used for stirring, and the whole process of oxidation and post treatment is completed through replacement of solutions in the two electrolytic bottles. The device and the method have the advantages of simple operation, convenient flow, and easy observation, and the device is the anodic aluminum oxide template preparation device which can independently accomplish the oxidation process and all subsequent steps.

Description

technical field [0001] The invention relates to a device and method for preparing a large-pore anodic aluminum oxide template, and belongs to the technical field of nanomaterial preparation. Background technique [0002] Anodic alumina templates are widely used in nanomaterial preparation, water treatment engineering, optical engineering, gas separation technology and biological membrane technology due to their highly ordered honeycomb-like hexagonal nanoscale structure and extremely stable physical and chemical properties. In other respects, especially in recent years, the demand for anodized aluminum templates has grown rapidly due to the unique properties of nanomaterials. The degree of order parameter and pore size parameter of the template are the direct leading factors affecting the subsequent material products; the operability, stability, convenience and practicability of the template preparation device and its process greatly affect the quality and application of the...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing equipment for preparing anodized aluminum templates cannot independently complete the complete process of oxidation and all subsequent steps, and provide a simple, convenient and easy-to-observe anodic oxidation that can independently complete the oxidation process and all subsequent steps Aluminum template preparation device, which includes regulated DC power supply 1, front electrolytic bottle 2, reverse electrolytic bottle 3, high-purity aluminum sheet 4, aluminum sheet clamping kit 5, high-purity platinum electrode 6, magnetic stirrer 7, ice water bath The cooling tank 8, the solution channel I12 of the front electrolytic bottle 2 are locked and connected with the solution channel II13 of the reverse electrolytic bottle 3 through the aluminum sheet clamping kit 5 to form an integrated electrolytic bottle; the high-purity aluminum sheet 4 is vertically clamped on the aluminum sheet clamp In kit 5, the high-purity platinum electrode 6 extends into the front electrolytic bottle 2 parallel to the high-purity aluminum sheet 4; the high-purity aluminum sheet 4 and the high-purity platinum electrode 6 are connected to the regulated DC power supply 1 through wires; the magnetic stirrer 7 is set In the center of the bottom end of the front electrolytic bottle 2, the integrated electrolytic bottle is placed in the cooling tank 8 of the ice-water bath

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