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Polyaniline-carbon layer-titanium nitride nanowire array composite material and preparation method and application thereof

A titanium nitride nanometer and composite material technology, which is applied in nanotechnology, nanotechnology, hybrid/electric double layer capacitor manufacturing, etc., can solve instability and other problems, and achieve the effect of wide industrial application value

Active Publication Date: 2015-05-13
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, titanium nitride will be unstable due to the irreversible electrochemical oxidation reaction in the aqueous electrolyte. Therefore, improving the stability of titanium nitride materials is also of great significance for the real realization of its application in the field of energy storage.

Method used

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  • Polyaniline-carbon layer-titanium nitride nanowire array composite material and preparation method and application thereof
  • Polyaniline-carbon layer-titanium nitride nanowire array composite material and preparation method and application thereof
  • Polyaniline-carbon layer-titanium nitride nanowire array composite material and preparation method and application thereof

Examples

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Embodiment 1

[0032] The schematic diagram of the preparation process of the polyaniline-carbon layer-titanium nitride nanowire array composite material is shown in the appendix of the specification. figure 2. First, based on the seed-assisted hydrothermal reaction method and high-temperature nitriding reaction process (A), a titanium nitride nanowire array was prepared on the surface of the carbon substrate (1): the carbon substrate material was soaked in the impregnated seed solution, and the A seed layer is formed on the surface of the carbon base material. After calcination, it is put into a sealed hydrothermal reaction kettle, and the mixed solution of hydrochloric acid, water and titanium-based precursor is used as the reaction liquid for hydrothermal reaction. After the end, it is nitrided at high temperature under an ammonia atmosphere. reaction to obtain a titanium nitride nanowire array (2) that is ordered on the surface of the carbon substrate; secondly, based on the hydrotherma...

Embodiment 2

[0034] Preparation of polyaniline-carbon layer-titanium nitride nanowire array composites, see figure 2 ,Specific steps are as follows:

[0035] (1) Titanium nitride nanowire arrays were prepared by seed-assisted hydrothermal reaction method and nitriding treatment method: the carbon fiber cloth substrate was cleaned with acetone, ethanol and deionized water in sequence; the dried carbon fiber cloth was placed in a solution containing 0.3mol / L titanium tetrachloride ethanol solution, fully soaked under stirring, took out and dried, put it into the hollow atmosphere of the tube furnace and calcined at 400°C for 10min; then put the calcined sample into a 100mL hydrothermal reaction kettle, added A mixed reaction solution containing 30mL of 37% concentrated hydrochloric acid, 30mL of water and 0.9mL of tetrabutyl titanate, the hydrothermal reaction time is 8h at 170°C, after the reaction is completed, the product is taken out and placed in a tube furnace under an ammonia atmosp...

Embodiment 3

[0040] The preparation of polyaniline-carbon layer-titanium nitride nanowire array composite material specifically includes the following steps:

[0041] (1) Titanium nitride nanowire arrays were prepared by seed-assisted hydrothermal reaction method and high-temperature nitriding reaction method: the carbon paper substrate was cleaned and dried, and then placed in an ethanol solution containing 0.7mol / L tetrabutyl titanate, After soaking for 20 minutes, take it out and dry it, put it into the hollow atmosphere of the tube furnace and calcinate at 400°C for 10 minutes. Then put the calcined sample into a 50mL hydrothermal reaction kettle, add a mixed reaction solution containing 15mL 37% concentrated hydrochloric acid, 15mL water and 0.5mL tetrabutyl titanate, and the hydrothermal reaction time is 10h at 160°C, and the reaction ends Afterwards, the product was taken out and placed in a tube furnace, and subjected to high-temperature calcination treatment under an ammonia gas a...

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Abstract

The invention provides a polyaniline-carbon layer-titanium nitride nanowire array composite material. The polyaniline-carbon layer-titanium nitride nanowire array composite material comprises a carbon substrate (1), titanium nitride nanowire arrays (2), an unformed carbon layer (3) and a polyaniline film (4); the titanium nitride nanowire arrays (2) are vertically arranged on the surface of the carbon substrate (1) and interconnected to form an integral structure; the unformed carbon layer (3) completely warps the surfaces of the titanium nitride nanowire arrays (2); the polyaniline film (4) completely wraps the surface of the carbon layer (3). The invention further provides a preparation method of the composite material, and application of the composite material in electrochemical energy storage in a super-capacitor. The polyaniline-carbon layer-titanium nitride nanowire array composite material has the characteristic of sequentially arranged housing-housing-kernel coaxial heterogeneous nanometer line structures; the composite material can be directly applied to electrode materials of the super-capacitor and can achieve effective electrochemical energy storing effect.

Description

technical field [0001] The invention belongs to the field of supercapacitor electrode material preparation, and relates to a polyaniline-carbon layer-titanium nitride nanowire array composite material, a preparation method of the material and its energy storage application in an electrochemical supercapacitor. Background technique [0002] At present, the society has an urgent demand for low-cost, lightweight, and environmentally friendly energy storage devices. Supercapacitors provide energy support for the rich and colorful life of human beings with their advantages such as fast charge and discharge rates, high power density, and long service life. However, a great challenge facing supercapacitors at present is how to increase their energy density and cycle stability while maintaining the power density of electrode materials. [0003] Conductive polymers are widely used pseudocapacitive electrode materials, they have higher energy density than carbon-based electric double ...

Claims

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Application Information

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IPC IPC(8): H01G11/30H01G11/24H01G11/26H01G11/86B82Y30/00
CPCY02E60/13H01G11/30B82Y30/00H01G11/24H01G11/26H01G11/86
Inventor 谢一兵夏池
Owner SOUTHEAST UNIV
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