Preparation apparatus for porous alumina template

Abstract

Disclosing is a preparation apparatus of a porous alumina plate, including an electrolytic tank, an aluminum substrate, a negative electrode, a thermostatic apparatus, a circulation apparatus, and a power supply. The electrolytic tank includes an accommodating space and connects to a first opening and a second opening of the accommodating space, respectively, and a slot wall of the electrolytic tank is installed with an input tube and an output tube. The accommodating space is used to accommodate an electrolyte. The aluminum substrate and the negative electrode are installed on the first opening and the second opening, respectively, to contact the electrolyte. The thermostatic apparatus is used to maintain a temperature of the electrolyte, and the circulation apparatus is connected to the thermostatic apparatus and the electrolytic tank to circularly transport the electrolyte in the thermostatic apparatus and the electrolytic tank.

What is claimed is: 
     
         1 . A preparation apparatus for a porous alumina plate, comprising:
 an electrolytic tank, comprising an accommodating space and connected to a first opening and a second opening of the accommodating space, respectively, a slot wall of the electrolytic tank being installed with an input tube and an output tube, the accommodating space being used to accommodate an electrolyte, the input tube being close to the first opening, and the output tube being away from the first opening;   an aluminum substrate, being installed on the first opening of the electrolytic tank to contact the electrolyte within the accommodating space;   a negative electrode, contacting the electrolyte within the accommodating space through second opening of the electrolytic tank;   a thermostatic apparatus, to maintain a temperature of the electrolyte;   a circulation apparatus, connected to the thermostatic apparatus and the input tube or the output tube of the electrolytic tank to transport the electrolyte within the thermostatic apparatus and the electrolytic tank; and   a power supply, to provide a positive electric potential and a negative electric potential to the aluminum substrate and the negative electrode, respectively, to produce a voltage difference between the aluminum substrate and the negative electrode, such that the aluminum substrate being oxidized to obtain the porous alumina plate.   
     
     
         2 . The preparation apparatus for a porous alumina plate of  claim 1 , wherein a waterproof gasket is further installed between the aluminum substrate and the electrolyte within the electrolytic tank to prevent the electrolyte from leaking out of the first opening. 
     
     
         3 . The preparation apparatus for a porous alumina plate of  claim 1 , further comprising a seal valve installed at the second opening to fix the negative electrode, such that the aluminum substrate and the negative electrode is separated from 3 to 10 centimeters. 
     
     
         4 . The preparation apparatus for a porous alumina plate of  claim 1 , wherein the electrolytic tank is a acid and alkali resistant tank made of Teflon material. 
     
     
         5 . The preparation apparatus for a porous alumina plate of  claim 1 , wherein the electrolytic is sulfuric acid, oxalic acid, or phosphorus acid. 
     
     
         6 . The preparation apparatus for a porous alumina plate of  claim 1 , wherein the temperature of the electrolyte is maintained at 4° C. 
     
     
         7 . The preparation apparatus for a porous alumina plate of  claim 1 , Wherein the circulation apparatus is a peristaltic pump. 
     
     
         8 . The preparation apparatus for a porous alumina plate of  claim 1 , wherein the flow rate of the circulation apparatus is between 1 ml/s and 11000 ml/s. 
     
     
         9 . The preparation apparatus for a porous alumina plate of  claim 1 , wherein material of the negative electrode is platinum or stainless steel. 
     
     
         10 . The preparation apparatus for a porous alumina plate of  claim 1 , wherein the voltage difference is between 15 V and 300 V.