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Preparation method and application of (4-ferroceneethynyl)aniline modified fullerene

A technology of ferroceneacetylene and fullerene, which is applied in the field of solar cells, can solve the problems of low photoelectric conversion efficiency of dye-sensitized solar cells, easy desorption of dyes, and low conductivity, so as to overcome low conductivity and enhance The effect of improving electrical conductivity and stability

Inactive Publication Date: 2019-07-09
HUNAN CHENLI NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the liquid electrolyte generally contains inorganic or organic iodide, iodine, additives, and organic solvents. It has the advantages of high conductivity, fast ion diffusion speed, and good permeability to porous photoanodes, but it is easy to leak, volatile, and difficult to package. , high toxicity, poor stability, and easy desorption of dyes; due to the small amount of solvents such as ethylene carbonate, propylene carbonate, and ionic liquids in the quasi-solid electrolyte, there are still problems of easy leakage and difficult packaging
Solid electrolytes have good long-term stability, but their low conductivity leads to low photoelectric conversion efficiency of dye-sensitized solar cells prepared with solid electrolytes

Method used

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  • Preparation method and application of (4-ferroceneethynyl)aniline modified fullerene
  • Preparation method and application of (4-ferroceneethynyl)aniline modified fullerene

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Embodiment 1

[0031] A solid electrolyte for dye-sensitized solar cells based on ionic crystals, comprising the following components by weight: 40 parts of cyanoimidazole-type ionic crystals, 3 parts of (4-ferroceneethynyl) aniline modified fullerenes, 5 parts of simple iodine, 5 parts of methylbenzimidazole (MBI).

[0032] The preparation method of described cyanoimidazole type ion crystal comprises the steps:

[0033] 1) Preparation of 1-methyl-4,5-dicyanoimidazole: Dissolve 10 g of 4,5-dicyanoimidazole in 100 g of acetonitrile, and then add 15 g of methyl iodide and 5 g of sodium hydroxide to it, at 40 ° C Stirring and reacting for 8 hours, after filtering, adding water to the reaction system, separating the liquid to take the organic phase, and rotary evaporating to remove the organic solvent, to obtain 1-methyl-4,5-dicyanoimidazole;

[0034] 2) Preparation of cyanoimidazole-type ionic crystals: 15 g of 1-methyl-4,5-dicyanoimidazole prepared in step 1) was dissolved in 60 g of ether, a...

Embodiment 2

[0040]A solid electrolyte for dye-sensitized solar cells based on ionic crystals, comprising the following components by weight: 43 parts of cyanoimidazole-type ionic crystals, 4 parts of (4-ferroceneethynyl) aniline modified fullerenes, 7 parts of simple iodine, 6 parts of butylbenzimidazole (NBB).

[0041] The preparation method of described cyanoimidazole type ion crystal comprises the steps:

[0042] 1) Preparation of 1-ethyl-4,5-dicyanoimidazole: 10 g of 4,5-dicyanoimidazole was dissolved in 120 g of chloroform, and 17 g of ethyl iodide and 6 g of potassium hydroxide were added thereto, at 45 Stir the reaction at ℃ for 8.5 hours, then filter, add water to the reaction system, separate the liquid to take the organic phase, and remove the organic solvent by rotary evaporation to obtain 1-ethyl-4,5-dicyanoimidazole;

[0043] 2) Preparation of cyanoimidazole-type ionic crystals: 17 g of 1-ethyl-4,5-dicyanoimidazole prepared in step 1) was dissolved in 78 g of ether, and ethy...

Embodiment 3

[0049] A solid-state electrolyte for dye-sensitized solar cells based on ionic crystals, comprising the following components by weight: 46 parts of cyanoimidazole-type ionic crystals, 5 parts of (4-ferroceneethynyl) aniline-modified fullerenes, 7 parts of simple iodine, 7 parts of tert-butylpyridine (TBP).

[0050] The preparation method of described cyanoimidazole type ion crystal comprises the steps:

[0051] 1) Preparation of 1-propyl-4,5-dicyanoimidazole: 10 g of 4,5-dicyanoimidazole was dissolved in 135 g of acetonitrile, and then 18 g of 1-iodopropane and 7.5 g of sodium carbonate were added thereto. Stir and react at 50°C for 9 hours, then filter, add water to the reaction system, separate the liquid to take the organic phase, and remove the organic solvent by rotary evaporation to obtain 1-propyl-4,5-dicyanoimidazole;

[0052] 2) Preparation of cyanoimidazole-type ionic crystals: 18 g of 1-propyl-4,5-dicyanoimidazole prepared in step 1) was dissolved in 80 g of ether,...

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Abstract

The invention discloses a preparation method of (4-ferroceneethynyl)aniline modified fullerene. The method comprises the following steps: 1) preparing epoxy modified fullerene: dispersing amino modified fullerene into fatty alcohol, adding epichlorohydrin and potassium hydroxide into the mixture, performing a reflux reaction for 5-8 h under stirring at 70-80 DEG C, performing rotary evaporation toremove a solvent, performing centrifugal washing for 5-7 times by using water, placing the washed material into a vacuum drying oven at 100-110 DEG C, and performing drying to obtain the epoxy modified fullerene; and 2) preparing the (4-ferroceneethynyl)aniline modified fullerene: dispersing the epoxy modified fullerene into a high-boiling-point solvent, adding (4-ferroceneethynyl)aniline into the solvent, performing a reaction for 6-8 h under stirring at 70-80 DEG C, performing rotary evaporation to remove a solvent, and performing centrifugal washing for 6-8 times by using dichloromethane to obtain the (4-ferroceneethynyl)aniline modified fullerene. The (4-ferroceneethynyl)aniline modified fullerene provided by the invention can be applied to preparation of a dye-sensitized solar cell with high efficiency and high stability.

Description

technical field [0001] This invention is a divisional application of the Chinese patent "A solid electrolyte for dye-sensitized solar cells based on ionic crystals". The application date is February 15, 2018, and the application number is 201810152492.4. The invention belongs to the technical field of solar cells, and relates to a component of a dye-sensitized solar cell, in particular to a solid electrolyte for a dye-sensitized solar cell based on ionic crystals. Background technique [0002] With the increasing shortage of energy and the increasingly prominent environmental problems, the development of clean and renewable energy has attracted more and more attention, and the research on solar cells for clean and renewable energy devices has also continued to deepen. As one of many solar cells, dye-sensitized solar cells have become the focus of attention in the industry in recent years due to their advantages of high efficiency and low cost. [0003] Electrolyte is the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F17/02H01G9/20
CPCC07F17/02H01G9/2009Y02E10/542
Inventor 程业秀
Owner HUNAN CHENLI NEW MATERIAL CO LTD
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