Method of preparing titania nanotube/carbon/manganese oxide composite material by using gaseous penetration method

A technology of titanium oxide nanotubes and composite materials, which is applied in the field of composite material preparation, can solve problems such as poor capacitance performance and large resistance, and achieve the effects of improving capacitance performance, reducing resistance and increasing capacitance

Active Publication Date: 2015-11-11
HARBIN INST OF TECH
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of large resistance and poor capacitance performance of the existing titanium dioxide nanotubes, and provide a method for preparing titanium oxide nanotubes / carbon / manganese oxide composite materials by gas phase diffusion and infiltration

Method used

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  • Method of preparing titania nanotube/carbon/manganese oxide composite material by using gaseous penetration method
  • Method of preparing titania nanotube/carbon/manganese oxide composite material by using gaseous penetration method
  • Method of preparing titania nanotube/carbon/manganese oxide composite material by using gaseous penetration method

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specific Embodiment approach 1

[0025] Specific embodiment one: this embodiment is a kind of method that utilizes vapor phase diffusion infiltration method to prepare titanium oxide nanotube / carbon / manganese oxide composite material is finished according to the following steps:

[0026] 1. Use 120#SiC sandpaper, 1000#SiC sandpaper and 2000#SiC sandpaper to polish the titanium sheet in sequence to obtain a titanium sheet with a bright surface;

[0027] 2. Use absolute ethanol and acetone to clean the titanium sheet with a bright surface for 3 to 5 times respectively to obtain the treated titanium sheet;

[0028] 3. Add the electrolyte solution into the inorganic glass electrolytic cell, connect the processed titanium sheet to the positive pole of the power supply as the anode, and connect the copper sheet to the negative pole of the power supply as the cathode; use a DC power supply for power supply at a voltage of 10V React at ~30V for 60min~90min, take out the reacted titanium sheet;

[0029] 4. Drying the...

specific Embodiment approach 2

[0041] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in step 3, a DC power supply is used for power supply, and the reaction is performed at a voltage of 10V-20V for 60min-75min, and the reacted titanium sheet is taken out.

[0042] Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0043] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that in step 3, a DC power supply is used for power supply, and the reaction is performed at a voltage of 20V-30V for 75min-90min, and the reacted titanium sheet is taken out. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a method of preparing a titania nanotube/carbon/manganese oxide composite material by using a gaseous penetration method, which relates to a composite material preparation method, and aims at solving the problems that the existing titanate nanotube is large in resistance and poor in capacitance performance. The preparation method comprises steps: 1, a titanium sheet with a polished surface is prepared; 2, the titanium sheet with a polished surface is cleaned; 3; an electrolytic reaction is carried out on the titanium sheet; 4, the titanium sheet is taken out and dried and then a titania nanotube is obtained; 5, air is exhausted; and 6, gaseous penetration is carried out, and the titania nanotube/carbon/manganese oxide composite material is obtained. The capacitance value of the obtained titania nanotube/carbon/manganese oxide composite material is nearly ten times that of the titania nanotube; the resistance of the obtained titania nanotube/carbon/manganese oxide composite material is reduced by three orders of magnitude, and conductivity is significantly improved. A titania nanotube/carbon/manganese oxide composite material preparation method can be acquired.

Description

technical field [0001] The invention relates to a preparation method of a composite material. Background technique [0002] With the development of society and economy, people pay more and more attention to environment-friendly energy and ecological environment. As a new type of energy storage device, supercapacitors are getting more and more attention due to their excellent characteristics of no pollution and high efficiency. In situ synthesis of TiO on metallic titanium substrates by anodic oxidation 2 The nanotube array has a large specific surface area and an ordered pore structure and good chemical stability. The geometric parameters such as tube diameter and tube length can be adjusted through the anodic oxidation process. The regular tubular structure not only provides a good environment for electrolyte flow and ion migration At the same time, it is a good template for loading other high specific capacitance active substances to form a composite nanoarray, so that th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/86H01G11/24H01G11/46
Inventor 姚忠平赵娅靖张艺方魏晗夏琦兴姜兆华
Owner HARBIN INST OF TECH
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