Metal organic frame/conductive polymer composite material and preparation and application thereof

A metal-organic framework, conductive polymer technology, used in the manufacture of hybrid/electric double-layer capacitors, hybrid capacitor electrodes, etc., can solve the problem of difficult implementation of fibrous electrode substrates, and achieve stable long-term service life, good mechanical flexibility, excellent Effects of Capacitive Performance

Active Publication Date: 2018-07-27
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the method of coating MOFs first and then electrodepositing conductive polymers, only the MOFs particles on the surface can transfer electrons through the connection of conductive polymers, and this method of directly coating MOFs dispersion is not suitable for elongated fibrous electrodes. The base is obviously also difficult to implement

Method used

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  • Metal organic frame/conductive polymer composite material and preparation and application thereof
  • Metal organic frame/conductive polymer composite material and preparation and application thereof
  • Metal organic frame/conductive polymer composite material and preparation and application thereof

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preparation example Construction

[0036] A method for preparing a metal-organic framework / conductive polymer composite material, comprising the steps of:

[0037] (1) Synthesis of metal organic framework materials;

[0038] (2) preparing an electrolyte solution, the electrolyte solution comprising a monomer of a conductive organic substance and the metal-organic framework material described in step (1);

[0039] (3) Immerse the carbon fiber bundle in the electrolyte described in step (2), and electrodeposit a metal-organic framework / conductive polymer composite material on the carbon fiber bundle by potential scanning cyclic voltammetry in one step, and the conductive polymer is The polymer obtained after the monomer of the conductive polymer in step (2) is polymerized.

[0040]The metal-organic framework material in step (1) can be of various types such as ZIF-8, UiO-66, ZIF-67, HKUST-1, etc., and its particle size is 50-900nm in nanoscale. The general preparation method is: mix the metal salt and the organ...

Embodiment 1

[0053] A fabrication method for braidable, flexible, fibrous supercapacitors such as figure 1 shown, including the following steps:

[0054] Step 1, 5mL 16mM zirconium chloride (ZrCl 4 ) in dimethylformamide (DMF) dispersion and 5mL 16mM phthalic acid (H 2 BDC) DMF solution was ultrasonically mixed, 1.75mL of acetic acid was added dropwise, the mixture was placed in a sealed glass reaction bottle, and reacted at 95°C for 12 hours, the resulting white precipitate was washed with DMF, purified in methanol, kept at 50°C, every Refresh methanol once every 4 hours, wash with methanol after 3 times, and dry in vacuum at 100°C for 12 hours to obtain MOFs material UiO-66 nanoparticles. The microscopic appearance is as follows: figure 2 (a), its particle diameter is about 500nm.

[0055] Step 2: heating and refluxing the carbon fiber bundles in acetone for 24 hours, washing with deionized water, and drying for later use. 0.1 M pyrrole monomer, 5 mg / mL UiO-66 and 1 mg / mL dopamine w...

Embodiment 2

[0075] A fabrication method for braidable, flexible, fibrous supercapacitors such as figure 1 shown, including the following steps:

[0076] Step 1, 5mL 16mM zirconium chloride (ZrCl 4 ) DMF dispersion and 5mL 16mM phthalic acid (H 2 BDC) DMF solution was ultrasonically mixed, 1.75mL of acetic acid was added dropwise, the mixed solution was placed in a sealed glass reaction bottle, and reacted at 95°C for 12 hours, the obtained white precipitate was washed with DMF, purified in methanol, kept at 50°C, every Methanol was renewed every 4 hours, washed with methanol after 3 times, and dried in vacuum at 100°C for 12 hours to obtain MOFs material UiO-66 for future use.

[0077] Step 2: heating and refluxing the carbon fiber bundles in acetone for 24 hours, washing with deionized water, and drying for later use. 0.5 M aniline monomer, 5 mg / mL UiO-66 and 1 mg / mL dopamine were mixed and ultrasonically dispersed in phosphate buffer to prepare an electrodeposition electrolyte for use....

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Abstract

The invention belongs to the technical field of flexible energy storage devices, and particularly relates to a metal organic frame/conductive polymer composite material, a preparation method thereof and application in knittable, flexible and fibroid supercapacitors. Carbon fiber bundles are adopted as an electrode substrate, the electro-deposition metal organic frame/conductive polymer composite material is adopted as an electrode active material, polyvinyl alcohol-electrolyte gel is adopted as solid electrolyte and a membrane, and the prepared fibroid supercapacitor has the excellent capacitive performance, good mechanical flexibility, wide working temperature range and stable long-term service life, capable of being directly knitted and integrated into textile easily, and capable of providing an efficient energy storage system for wearable mobile equipment.

Description

technical field [0001] The invention belongs to the technical field of flexible energy storage devices, and in particular relates to a metal-organic framework / conductive polymer composite material, a preparation method thereof, and an application in a woven, flexible, and fibrous supercapacitor. Background technique [0002] The rise of wearable e-textiles has opened up the attractive prospect of smart clothing with human-computer interaction functions in the near future, and flexible energy storage devices are one of the key challenges to drive e-textiles. One of the ideal strategies is to directly weave and integrate fibers with supercapacitive properties into textiles as energy storage components, that is, fibrous supercapacitors, which have the advantages of high power, fast charge and discharge, long service life, and flexible weaving. At present, many fibrous energy storage devices based on plastic fibers, metal wires, natural fibers, carbon fibers, carbon nanotube yar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/30H01G11/48H01G11/84H01G11/86
CPCY02E60/13H01G11/48H01G11/30H01G11/84H01G11/86
Inventor 夏宝玉齐锴
Owner HUAZHONG UNIV OF SCI & TECH
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