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Metal phosphide, preparation method thereof and application in supercapacitor

A technology of metal phosphides and supercapacitors, applied in the direction of phosphides, phosphorus compounds, chemical instruments and methods, etc., can solve problems such as low electronic conductivity, and achieve good conductivity, good rate performance, and high surface active sites Effect

Active Publication Date: 2020-04-10
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Recently, electrode materials such as metal oxides have been introduced into supercapacitors because they are able to store or transport several times more charge than carbon materials, however, due to their inherently low electronic conductivity, they usually show much lower than their theoretical value capacity

Method used

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  • Metal phosphide, preparation method thereof and application in supercapacitor
  • Metal phosphide, preparation method thereof and application in supercapacitor
  • Metal phosphide, preparation method thereof and application in supercapacitor

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Embodiment 1

[0043] The preparation method of a kind of metal phosphide of the present embodiment is to use elemental phosphorus, metal salt, cetyltrimethylammonium bromide as raw materials, first the raw materials are prepared into reaction precursors, secondly carry out hydrothermal reaction, pumping Filtration, drying and post-treatment processes, so that elemental phosphorus and metal salts fully react to form metal phosphides as electrode materials, and the method specifically includes the following steps:

[0044] (1) Reaction precursor preparation: at room temperature, cetyltrimethylammonium bromide and metal salt are added to deionized water according to a certain molar ratio, then heated in a water bath and stirred to make it completely dissolved, and the solution Pour into the PTFE liner, then add elemental phosphorus;

[0045]Wherein, the reaction precursor is prepared as follows:

[0046] (a) Pour 60 mL of deionized water into a beaker at room temperature;

[0047] (b) Weigh ...

Embodiment 2

[0058] The preparation method of a kind of metal phosphide of the present embodiment is to use elemental phosphorus, metal salt, cetyltrimethylammonium bromide as raw materials, first the raw materials are prepared into reaction precursors, secondly carry out hydrothermal reaction, pumping Filtration, drying and post-treatment processes, so that elemental phosphorus and metal salts fully react to form metal phosphides as electrode materials. Described method specifically comprises the following steps:

[0059] (1) Reaction precursor preparation: at room temperature, cetyltrimethylammonium bromide and metal salt are added to deionized water according to a certain molar ratio, then heated in a water bath and stirred to make it completely dissolved, and the solution Pour into the PTFE liner, then add elemental phosphorus;

[0060] Wherein, the reaction precursor is prepared as follows:

[0061] (a) Pour 60 mL of deionized water into a beaker at room temperature;

[0062] (b) W...

Embodiment 3

[0073] The preparation method of a kind of metal phosphide of the present embodiment is to use elemental phosphorus, metal salt, cetyltrimethylammonium bromide as raw materials, first the raw materials are prepared into reaction precursors, secondly carry out hydrothermal reaction, pumping Filtration, drying and post-treatment processes, so that elemental phosphorus and metal salts fully react to form metal phosphides as electrode materials.

[0074] (1) Reaction precursor preparation: at room temperature, cetyltrimethylammonium bromide and metal salt are added to deionized water according to a certain molar ratio, then heated in a water bath and stirred to make it completely dissolved, and the solution Pour into the PTFE liner, then add elemental phosphorus;

[0075] Wherein, the reaction precursor is prepared as follows:

[0076] (a) Pour 60 mL of deionized water into a beaker at room temperature;

[0077] (b) Weigh 0.3645g cetyltrimethylammonium bromide at room temperatur...

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Abstract

The invention relates to a method for preparing metal phosphide as an electrode material and application of the metal phosphide, and belongs to the technical field of supercapacitor electrode materials. Elemental phosphorus, metal salt, and hexadecyl trimethyl ammonium bromide are adopted as raw materials. The method includes firstly preparing a reaction precursor from the raw materials, and thenperforming a hydrothermal reaction, suction filtration, drying and post-treatment processes so that the elemental phosphorus and the metal salt fully react to form the metal phosphide to serve as theelectrode material. By utilizing the simple hydrothermal synthesis method, the operation procedure is greatly simplified, and the percent of pass of products is increased. In addition, the supercapacitor using the metal phosphide prepared by the method as an electrode material has a higher surface active site, a larger specific capacitance, and good stability, the production efficiency of capacitors is greatly increased and the method is suitable for large-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of supercapacitor electrode material preparation, and in particular relates to a metal phosphide, a preparation method thereof and an application in supercapacitors. Background technique [0002] With the development of the times, the awareness of environmental protection has gradually strengthened in people's minds. A few days ago, various forms of new energy storage components have appeared in our country, and supercapacitors stand out at this time. A supercapacitor is a new type of energy storage device between batteries and traditional capacitors. It not only has the characteristics of fast charging and discharging of capacitors, but also has the energy storage characteristics of batteries. In addition, supercapacitors also have the advantages of high power density and long cycle life. So far, supercapacitors have been widely used in the automotive field and other fields. [0003] A supercapacitor is ...

Claims

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Application Information

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IPC IPC(8): C01B25/08H01G11/30
CPCC01B25/08C01B25/088C01P2004/03H01G11/30Y02E60/13
Inventor 万厚钊吴涵王浩甘億王聪汪汉斌张军
Owner HUBEI UNIV
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