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Preparation method and energy storage application of a π-d conjugated ni-hitp MOF conductive thin film

A conductive thin film, conjugated technology, applied in the field of capacitors, to achieve the effects of short time consumption, excellent conductivity and low square resistance

Active Publication Date: 2021-09-28
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The direct selection of ITO / PET flexible and transparent materials as substrates for incorporating π-d conjugated MOF thin films is still rarely reported

Method used

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  • Preparation method and energy storage application of a π-d conjugated ni-hitp MOF conductive thin film
  • Preparation method and energy storage application of a π-d conjugated ni-hitp MOF conductive thin film
  • Preparation method and energy storage application of a π-d conjugated ni-hitp MOF conductive thin film

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: the preparation of Ni-HITP MOF conductive thin film

[0032] (1) Preparation 1.84×10 -3 mol / L HITP aqueous solution: weigh (0.011g, 0.02mmol) HITP dissolved in 11mL of H 2 O middle;

[0033] (2) Prepare 2.8×10 -3 mol / L NiCl 2 ·6H 2 O aqueous solution: called NiCl 2 ·6H 2 O (0.0264g, 0.112mmol) was dissolved in 40mL of H 2 O middle;

[0034] (3) Add 5mL H 2 O, 2.5mL HITP aqueous solution, 2.5mL NiCl 2 ·6H 2 O aqueous solution was heated to 60°C, and then 50 μL of triethylamine with a mass concentration of 0.726-0.729 g / mL was added to react for 7 min and 20 min, respectively, and a Ni-HITP-7min film and a Ni-HITP-20min film were formed at the gas-liquid interface.

[0035] From figure 1 , figure 2 It can be seen that Ni-HITP is a uniform sheet-like substance.

Embodiment 2

[0036] Embodiment 2: the preparation of Ni-HITP / ITO / PET flexible transparent electrode

[0037] (1) Transfer the Ni-HITP-7min film formed at the interface to the ITO / PET flexible transparent substrate by the L-S method to obtain the Ni-HITP / ITO / PET-7min flexible transparent electrode;

[0038] (2) Transfer the Ni-HITP-20min film formed at the interface to the ITO / PET flexible transparent substrate by the L-S method to obtain the Ni-HITP / ITO / PET-20min flexible transparent electrode;

[0039] (3) The flexible transparent electrode obtained in step (1) (2) is covered with H 2 O. Wash slowly with ethanol, and store in a vacuum oven before testing.

[0040] The UV-Vis absorption spectrum of Ni-HITP / ITO / PET flexible transparent electrode is shown as Figure 5 As shown, the spectrum presents two unique peaks at 487nm and 550nm, and as the reaction time prolongs, the absorption intensity of the sample increases.

[0041]The light transmittance spectrum of Ni-HITP / ITO / PET flexible t...

Embodiment 3

[0042] Embodiment 3: Cyclic voltammetry test of Ni-HITP / ITO / PET-7min, Ni-HITP / ITO / PET-20min flexible transparent electrodes

[0043] (1) Working electrode: Ni-HITP / ITO / PET-7min flexible transparent electrode (original size: 1.0cm×2.0cm; soaking size: 1.0cm×1.0cm); reference electrode: Ag / AgCl electrode; counter electrode: Pt sheet (1.0cm×1.0cm); electrolyte: 3MKCl; CV potential window: -0.3V~0.3V. Put the working electrode into the electrolyte, soak for 10min before testing, activate at 100mV / s until the curves completely overlap, and then test the cyclic voltammetry curve.

[0044] (2) Working electrode: Ni-HITP / ITO / PET-20min flexible transparent electrode (original size: 1.0cm×2.0cm; soaking size: 1.0cm×1.0cm); reference electrode: Ag / AgCl electrode; counter electrode: Pt sheet (1.0cm×1.0cm); electrolyte: 3M KCl; CV potential window: -0.3V~0.3V. Place the working electrode in the electrolyte, soak for 10 minutes before testing, activate at 100mV / s until the curves complete...

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Abstract

The invention discloses a preparation method and energy storage application of a π-d conjugated Ni-HITP MOF flexible transparent electrode. In the invention, the ITO / PET flexible transparent material is directly selected as the conductive film combined with π-d conjugated Ni-HITP MOF Ni-HITP MOF conductive thin film is prepared by gas-liquid interface method with low cost, low energy consumption and simple process, and Ni-HITP / ITO / PET flexible transparent electrode is prepared by transferring the film to the substrate by L-S method. The steps of the whole preparation process are simple, the required conditions are low, the operation is simple, and the time consumption is short; the prepared flexible transparent electrode has good optical transmittance and excellent electrochemical energy storage properties.

Description

technical field [0001] The invention relates to the field of capacitor technology, in particular to a π-d conjugated 2,3,6,7,10,11-hexaaminotriphenylene nickel (II)-based metal-organic framework (Ni-HITP MOF) flexible transparent electrode synthesis and its application in electrochemical energy storage. Background technique [0002] With the gradual diversification of demand for electronic equipment, portable energy and wearable devices have become the key points connecting application innovation and technological development. Flexible, wearable and transparent are the mainstream directions for the development of electronic devices. However, at the current stage, the vast majority of batteries produced in the battery industry are rigid (such as lead-acid batteries, soft packs / steel cases / 18650 lithium-ion batteries ) and do not have the ability to work in bending, folding, torsion, compression or tension. In this context, the development of flexible and transparent electro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/86H01G11/30H01G11/24
CPCH01G11/24H01G11/30H01G11/86Y02E60/13
Inventor 赵为为陈田田赵强彭佳丽王维康金贝贝刘淑娟黄维
Owner NANJING UNIV OF POSTS & TELECOMM