Preparation method of molecular metal phthalocyanine (phthalocyanine)/graphene (graphene oxide) composite material

A metal phthalocyanine and composite material technology, which can be used in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, etc. Effect

Inactive Publication Date: 2020-12-22
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, low-power supercapacitors are difficult to meet the needs of electric vehicles and hybrid vehicles, so it is imperative to develop high-power supercapa

Method used

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  • Preparation method of molecular metal phthalocyanine (phthalocyanine)/graphene (graphene oxide) composite material
  • Preparation method of molecular metal phthalocyanine (phthalocyanine)/graphene (graphene oxide) composite material
  • Preparation method of molecular metal phthalocyanine (phthalocyanine)/graphene (graphene oxide) composite material

Examples

Experimental program
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Example Embodiment

[0029]Example 1

[0030]Dissolve 0.2 g of phthalocyanine iron in 20 mL of sulfuric acid, dilute in an ice bath to adjust the pH to neutral, and dry at 60°C to obtain amorphous iron phthalocyanine.

[0031]Take 0.2 g of graphene oxide powder, add 20 mL of concentrated sulfuric acid with a concentration of 98%, and obtain a uniformly dispersed sulfuric acid dispersion of graphene oxide through ultrasound for 30 minutes.

[0032]Add 0.2 g of iron phthalocyanine powder to the graphene sulfuric acid dispersion while stirring, and stir for 12 hours after ultrasonic treatment for 30 minutes to obtain an iron phthalocyanine / graphene oxide composite dispersion, which is washed with water to neutrality to obtain a sample.

[0033]Drying in a blast drying oven at 60°C for 12 hours to obtain a black sample powder.

[0034]among themfigure 1 It is the SEM image of the purified iron phthalocyanine, which obviously changed from a crystalline structure to an amorphous structure.figure 2 There is a Mapping image o...

Example Embodiment

[0035]Example 2

[0036]Dissolve 0.2 g nickel phthalocyanine in 20 mL sulfuric acid, dilute in an ice bath environment to adjust the pH to neutral, and dry at 60°C to obtain amorphous nickel phthalocyanine.

[0037]Take 0.2 g of graphene oxide powder, add 20 mL of concentrated sulfuric acid with a concentration of 98%, and obtain a uniformly dispersed sulfuric acid dispersion of graphene oxide through ultrasound for 30 minutes.

[0038]Add 0.2 g of nickel phthalocyanine powder to the graphene sulfuric acid dispersion while stirring, and stir for 12 hours after ultrasonic treatment for 30 minutes to obtain a nickel phthalocyanine / graphene oxide composite dispersion, which is washed with water to neutrality to obtain a sample.

[0039]Drying in a blast drying oven at 60°C for 12 hours to obtain a black sample powder.

Example Embodiment

[0040]Example 3

[0041]Dissolve 0.2 g of cobalt phthalocyanine in 20 mL of sulfuric acid, dilute in an ice bath to adjust the pH to neutral, and dry at 60°C to obtain amorphous cobalt phthalocyanine.

[0042]Take 0.2 g of graphene oxide powder, add 20 mL of concentrated sulfuric acid with a concentration of 98%, and obtain a uniformly dispersed sulfuric acid dispersion of graphene oxide through ultrasound for 30 minutes.

[0043]Add 0.2 g of cobalt phthalocyanine powder to the graphene sulfuric acid dispersion while stirring, and stir for 12 hours after ultrasonic treatment for 30 minutes to obtain a cobalt phthalocyanine / graphene oxide composite dispersion, which is washed with water to neutrality to obtain a sample.

[0044]Drying in a blast drying oven at 60°C for 12 hours to obtain a black sample powder.

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Abstract

The invention discloses a preparation method of a metal phthalocyanine (phthalocyanine)/graphene (graphene oxide) composite material, and relates to an application of the metal phthalocyanine (phthalocyanine)/graphene (graphene oxide) composite material in a supercapacitor, and the preparation method comprises the following steps: dispersing graphene (graphene oxide); adding metal phthalocyanine (phthalocyanine) into the graphene oxide dispersion liquid, ultrasonically stirring, washing and drying; and carrying out heat treatment on the obtained sample. The method is simple and convenient, easy to operate and capable of achieving large-area production. The metal phthalocyanine (phthalocyanine)/graphene (graphene oxide) composite material prepared by adopting the method is non-toxic and environment-friendly, and an assembled supercapacitor has relatively large specific capacitance and excellent cycling stability.

Description

technical field [0001] The invention relates to a method for preparing a positive electrode material of a supercapacitor, in particular to a method for preparing a molecular-level metal phthalocyanine (phthalocyanine) / graphite (graphene oxide) composite material, and belongs to the technical field of supercapacitor materials. Background technique [0002] With the development of science and technology, problems such as energy crisis and environmental pollution are becoming more and more serious, and it is imminent to solve the development and storage of new green and sustainable energy. As an efficient energy storage device, supercapacitors have the advantages of high power density, good cycle performance, fast charge and discharge, non-toxicity, and low environmental pollution, and are gradually used in daily life. However, low-power supercapacitors are difficult to meet the needs of electric vehicles and hybrid vehicles. Therefore, it is imperative to develop high-power su...

Claims

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Application Information

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IPC IPC(8): H01G11/30H01G11/36H01G11/86
CPCH01G11/30H01G11/36H01G11/86Y02E60/13
Inventor 赵永男高海燕王青
Owner TIANJIN POLYTECHNIC UNIV
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