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Fe-MOF-polyaniline composite material and preparation method and application thereof

A composite material and polyaniline technology, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, etc., can solve the obstacles to the mass use of such polymer-based electrodes, high preparation costs, carbon film and precious metal film preparation process Complexity and other issues, to achieve the effect of easy operation, simple preparation method, such as capacitance and rate performance

Inactive Publication Date: 2017-10-20
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process of carbon film and noble metal film is complicated and the preparation cost is high.
These factors have hindered the mass use of such polymer-based electrodes.

Method used

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  • Fe-MOF-polyaniline composite material and preparation method and application thereof
  • Fe-MOF-polyaniline composite material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Dissolve terephthalic acid (300mg) and ferric nitrate (800mg) in DMF (40mL) respectively, mix the two solutions evenly, reflux at 120°C for 40min, add 40mL of acetonitrile, centrifuge and dry to obtain iron-MOF Precursor.

[0024] (2) Aniline (1.14mg) is dissolved in deionized water to form aniline solution, the concentration of aniline solution is 2mmol / L, and the iron-MOF precursor (20mg) in step (1) is soaked in aniline solution (5ml) , Polymerized at -5°C for 12 hours to obtain an iron-MOF-polyaniline composite material, which was designated as Fe-MOF-PANI-1.

Embodiment 2

[0026] (1) Dissolve terephthalic acid (300mg) and ferric nitrate (800mg) in DMF (40mL) respectively, mix the two solutions evenly, reflux at 120°C for 40min, add 40mL of acetonitrile, centrifuge and dry to obtain iron-MOF Precursor.

[0027] (2) Aniline (3.42mg) is dissolved in deionized water to form aniline solution, the concentration of aniline solution is 6mmol / L, and the iron-MOF precursor (20mg) in step (1) is soaked in aniline solution (5ml) , Polymerized at -5°C for 12 hours to obtain an iron-MOF-polyaniline composite material, which was designated as Fe-MOF-PANI-2.

Embodiment 3

[0029] (1) Dissolve terephthalic acid (300mg) and ferric nitrate (800mg) in DMF (40mL) respectively, mix the two solutions evenly, reflux at 120°C for 40min, add 40mL of acetonitrile, centrifuge and dry to obtain iron-MOF Precursor.

[0030] (2) Aniline (5.7mg) is dissolved in deionized water to form aniline solution, the concentration of aniline solution is 10mmol / L, and the iron-MOF precursor (20mg) in step (1) is soaked in aniline solution (5ml) , Polymerized at -5°C for 12 hours to obtain an iron-MOF-polyaniline composite material, which was designated as Fe-MOF-PANI-3.

[0031] Electrochemical test results show that: figure 1 The iron-MOF-polyaniline composites prepared in Example 1, Example 2 and Example 3 all show obvious redox peaks. figure 2 The iron-MOF-polyaniline composites prepared in Example 1, Example 2 and this Example 3 all have good specific capacitance, and the iron-MOF-polyaniline composites prepared in Example 2 have a capacity of 0.5 Under the curren...

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Abstract

The invention relates to a Fe-MOF-polyaniline composite material which includes a Fe-MOF monomer and an aniline monomer. Fe-MOF is used as a precursor, and aniline is adsorbed inside Fe-MOF. The Fe-MOF-polyaniline composite material is prepared by the steps of synthesizing a Fe-MOF precursor with terephthalic acid and ferric nitrate as raw materials and dissolving the Fe-MOF precursor in aniline solution for low-temperature polymerization reaction. The preparation method of the invention is simple, easy to operate, and environment-friendly. The Fe-MOF-polyaniline composite material prepared has good specific capacitance and rate performance, and is an ideal electrode material for super capacitors.

Description

technical field [0001] The invention belongs to the field of conductive polymers, in particular to an iron-MOF-polyaniline composite material and its preparation method and application. Background technique [0002] With the development of science and technology and social progress, portable electronic devices have gradually entered people's lives, and the research on such devices has become a hot spot in the field of scientific research. The energy storage system of portable electronic components is a key issue, so the development of lightweight energy storage devices has become an important part of current research. Conductive polymers are more classic pseudocapacitive materials. Due to their high specific capacitance, fast and reversible redox reactions, non-toxic and harmless, environmentally friendly, low price, and abundant reserves, they have become a research hotspot. field. At present, most of the research on the capacitive properties of conductive polymers focuse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/30H01G11/86
CPCY02E60/13H01G11/30H01G11/86
Inventor 刘天西赵哲封其春张超
Owner DONGHUA UNIV
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