Composite material MoO3/Polyaniline/Ti3C2Tx and preparation method thereof

A composite material and powder technology, applied in the field of composite material preparation, can solve the problems that graphene cannot meet the performance requirements, limited application, poor electrical conductivity, etc., and achieves improved electrochemical performance, great adjustability, and improved electrical conductivity Effect

Active Publication Date: 2016-08-17
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the increased requirements for electrode materials, graphene can no longer meet people's requirements for performance.
Therefore, as a transition metal oxide with pseudocapacitive properties, its high specific capacitance has attracted much attention, but its poor conductivity limits its application.

Method used

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  • Composite material MoO3/Polyaniline/Ti3C2Tx and preparation method thereof
  • Composite material MoO3/Polyaniline/Ti3C2Tx and preparation method thereof
  • Composite material MoO3/Polyaniline/Ti3C2Tx and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The steps of this embodiment include:

[0023] (1) The Ti prepared by hot pressing sintering 3 AlC 2 The powder is completely immersed in the HF solution with a volume fraction of 40%, stirred at room temperature for 24 hours, washed with water to PH=6, washed with alcohol, centrifuged to obtain the powder and dried in a vacuum oven;

[0024] (2) Weigh 0.3g of ammonium molybdate tetrahydrate and 1.2g of tartaric acid to be completely dissolved in water to obtain an aqueous solution, stir evenly at 25°C, and adjust the pH to 0.5 with 6mol / L HCl;

[0025] (3) Ti obtained in step (1) 3 C 2 T x Weigh 0.15g of the powder, add it into the solution obtained in step (2) at a constant speed, and stir at 25°C for 9 hours;

[0026] (4) centrifuging the suspension obtained in step (3), washing with water, washing with alcohol, and drying in a vacuum oven;

[0027] (5) Sinter the powder obtained in step (4) at 550°C under an argon atmosphere and keep it warm for 2 hours to obt...

Embodiment 2

[0036] The steps of this embodiment include:

[0037] (1) The Ti prepared by hot pressing sintering 3 AlC 2 The powder is completely immersed in the HF solution with a volume fraction of 40%, stirred at room temperature for 24 hours, washed with water to PH=6, washed with alcohol, centrifuged to obtain the powder and dried in a vacuum oven;

[0038] (2) Weigh 0.1g of ammonium molybdate tetrahydrate and 0.2g of tartaric acid to be completely dissolved in water to obtain an aqueous solution, stir evenly at 25°C, and adjust the pH to 0.5 with 6mol / L HCl;

[0039] (3) Ti obtained in step (1) 3 C 2 T x Weigh 0.15g of the powder, add it into the solution obtained in step (2) at a constant speed, and stir at 25°C for 6 hours;

[0040] (4) centrifuging the suspension obtained in step (3), washing with water, washing with alcohol, and drying in a vacuum oven;

[0041] (5) Sinter the powder obtained in step (4) at 600°C under an argon atmosphere and keep it warm for 1h to obtain M...

Embodiment 3

[0047] The steps of this embodiment include:

[0048] (1) The Ti prepared by hot pressing sintering 3 AlC 2 The powder is completely immersed in the HF solution with a volume fraction of 40%, stirred at room temperature for 24 hours, washed with water to PH=6, washed with alcohol, centrifuged to obtain the powder and dried in a vacuum oven;

[0049] (2) Weighing 0.5g of ammonium molybdate tetrahydrate and 1.5g of tartaric acid were completely dissolved in water to obtain an aqueous solution, stirred evenly at 25°C, and adjusted to PH=0.5 with 6mol / L HCl;

[0050] (3) Ti obtained in step (1) 3 C 2 T x Weigh 0.15g of the powder, add it into the solution obtained in step (2) at a constant speed, and stir at 25°C for 9 hours;

[0051] (4) centrifuging the suspension obtained in step (3), washing with water, washing with alcohol, and drying in a vacuum oven;

[0052] (5) Sinter the powder obtained in step (4) at 550°C under an argon atmosphere and keep it warm for 2 hours to ...

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Abstract

The invention provides a composite material MoO3 / Polyaniline / Ti3C2Tx and a preparation method thereof. The preparation method includes the steps that 1, Ti3AlC2 powder is completely immersed in an HF solution with the volume fraction of 40%, centrifugation is conducted, and powder is obtained and dried; 2, ammonium molybdate tetrahydrate and tartaric acid are completely dissolved in water, and a water solution is obtained; 3, the powder Ti3C2Tx is added into the water solution; 4, suspension liquid obtained in the step 3 is centrifuged and dried in a vacuum drying oven; 5, the powder obtained in the step 4 is sintered and subjected to heat preservation, and a MoO3 / Ti3C2Tx composite material is obtained; 6, the obtained powder is ultrasonically dispersed in distilled water, aniline is added, and stirring is conducted in an ice bath; 7, (NH4)2S2O4 is dissolved in HCl, cooling is conducted, and the mixture is added into suspension liquid obtained the step 6; 8, suspension liquid obtained in the step 7 is centrifuged, washed, subjected to alcohol washing and freeze drying, and the target object is obtained. Due to the fact that the material is high in composition adjustability, the preparation process is simple and the synthesis process is easy to control, the application range of the composite material to an electrode material is widened.

Description

technical field [0001] The invention relates to the technical field of composite material preparation, in particular to a composite material MoO 3 / Polyaniline / Ti 3 C 2 T x method of preparation. Background technique [0002] Electrode materials for supercapacitors can be divided into three categories: carbon material series, transition metal oxide series, and conductive polymer series. Among them, graphene is one of the most carbon materials. Due to its high conductivity, good electrochemical stability, and high specific surface area, it has been deeply studied in electrode materials, and it shows excellent electric double layer capacitance properties. However, due to the increased requirements for electrode materials, graphene can no longer meet people's requirements for performance. Therefore, as a transition metal oxide with pseudocapacitive properties, its high specific capacitance has attracted much attention, but its poor conductivity limits its application. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/30H01G11/32H01G11/46H01G11/48H01G11/86
CPCY02E60/13H01G11/30H01G11/32H01G11/46H01G11/48H01G11/86
Inventor 鹿萧朱建锋王芬
Owner SHAANXI UNIV OF SCI & TECH
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