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Controllable nanoribbon structure of redox polymer electrode and preparation method thereof

A polymer and nanoribbon technology, applied in circuits, capacitors, electrolytic capacitors, etc., can solve problems affecting electrode capacitance performance, weakness, unfavorable charge, ion diffusion, etc., and achieve good diffusion ability and good capacitance performance.

Inactive Publication Date: 2014-05-28
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the control of the morphology of the electrochemically prepared polymers is relatively weak, and most of the prepared polymers are rod-shaped or film-forming structures, which are not conducive to the diffusion of charges and ions, thus affecting the capacitive performance of the electrode.
There is no report on the preparation of nanoribbon conductive polymers by electrochemical polymerization

Method used

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  • Controllable nanoribbon structure of redox polymer electrode and preparation method thereof
  • Controllable nanoribbon structure of redox polymer electrode and preparation method thereof
  • Controllable nanoribbon structure of redox polymer electrode and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1. Solution preparation

[0022] Dissolve tetrabutylammonium perchlorate in acetonitrile solution to prepare tetrabutylammonium perchlorate concentration of 0.1 mol L -1 the blank solution;

[0023] Dissolve the monomer Ni(salen) and tetrabutylammonium perchlorate in the acetonitrile solution, sonicate for 5-10 s to fully dissolve the monomer, and prepare the monomer Ni(salen) with a molar concentration of 1 mmol L -1 , the concentration of tetrabutylammonium perchlorate is 0.1 mol L -1 electrochemical polymerization solution.

[0024] 2. Electrochemical polymerization

[0025] Put the prepared blank solution into a closed three-electrode system, connect to the electrochemical workstation, the working electrode is ITO electrode, the counter electrode is activated carbon, and the reference electrode is Ag / AgCl. Cyclic voltammetry is used with a scan rate of 100-200 mV the s -1 Scan 10-50 circles to stabilize the electrode.

[0026] The working electrode, the count...

Embodiment 2

[0028] 1. Solution preparation

[0029] Dissolve tetrabutylammonium perchlorate in acetonitrile solution to prepare tetrabutylammonium perchlorate concentration of 0.1 mol L -1 the blank solution;

[0030] Dissolve the monomer Ni(salen) and tetrabutylammonium perchlorate in the acetonitrile solution, sonicate for 5-10 s to fully dissolve the monomer, and prepare the monomer Ni(salen) with a molar concentration of 1 mmol L -1 , the concentration of tetrabutylammonium perchlorate is 0.1 mol L -1 electrochemical polymerization solution.

[0031] 2. Electrochemical polymerization

[0032] Put the prepared blank solution into a closed three-electrode system, connect to the electrochemical workstation, the working electrode is Ti / MWCNT electrode, the counter electrode is activated carbon, and the reference electrode is Ag / AgCl. Cyclic voltammetry is adopted at a scan rate of 100- 200 mV s -1 Scan 10-50 circles to stabilize the electrode.

[0033] The working electrode, the co...

Embodiment 3

[0035] 1. Solution preparation

[0036] Dissolve tetrabutylammonium perchlorate in acetonitrile solution to prepare tetrabutylammonium perchlorate concentration of 0.1 mol L -1 the blank solution;

[0037] Dissolve the monomer Ni(salen) and tetrabutylammonium perchlorate in the acetonitrile solution, sonicate for 5-10 s to fully dissolve the monomer, and prepare the monomer Ni(salen) with a molar concentration of 1 mmol L -1 , the concentration of tetrabutylammonium perchlorate is 0.1 mol L -1 electrochemical polymerization solution.

[0038] 2. Electrochemical polymerization

[0039]Put the prepared blank solution into a closed three-electrode system and connect it to an electrochemical workstation. The working electrode is ITO electrode, the counter electrode is activated carbon, and the reference electrode is Ag / AgCl. Cyclic voltammetry is used with a scan rate of 100-200 mV the s -1 Scan 10-50 circles to stabilize the electrode.

[0040] The working electrode, the ...

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Abstract

The invention discloses a controllable nanoribbon structure of redox polymer Poly [Ni(Salen)] electrode, and a preparation method of the controllable nano-ribbon structure, belonging to the technical field of preparation of conductive polymer materials of super-capacitor electrodes. The preparation method comprises the following steps of: firstly preparing blank solution and electrochemical polymerization solution, dissolving tetra-butyl ammonium perchlorate into acetonitrile solution by using the electrochemical deposition method, Ag / AgCl as reference electrode, active carbon as counter electrode, and Ti / MCWNT or conductive glass as working electrode, using the mixed solution as blank solution, and directly performing electro-polymerization on Ti / MCWNT or ITO working electrode to obtain Poly[Ni(Salen)] by using the monomer Ni(Salen) based solution as the formed solution, so as to obtain the nano-ribbon shaped Poly[Ni(Salen)] modified electrochemical active electrode. The preparation method is simple and the preparation speed is high; and the prepared Poly [Ni(Salen)] has good capacitance.

Description

technical field [0001] The invention relates to a redox polymer for a supercapacitor—the controllable nanoribbon structure of a Poly[Ni(Salen)] electrode and a preparation method thereof, and belongs to the technical field of supercapacitor electrode conductive polymer material preparation. Background technique [0002] As an advanced energy storage device, supercapacitors have significant features and advantages, and can replace traditional batteries in some fields. Today, when energy conservation and environmental protection are increasingly becoming the theme, its application has attracted more and more attention from all over the world. The power density of supercapacitors is much higher than that of lithium batteries, the number of charge and discharge cycles can reach more than 500,000 times, the life span can reach more than 10 years, the charging time is short, and it can charge and discharge with high current. In view of its characteristics, it can be widely used in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/042
CPCY02E60/13
Inventor 李建玲张雅琨高飞
Owner UNIV OF SCI & TECH BEIJING