Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Amphiphilic benzimidazole ruthenium complex for dye-sensitized solar cell and preparation method of amphiphilic benzimidazole ruthenium complex

A solar cell and benzimidazole technology, which is applied in the field of amphiphilic benzimidazole ruthenium complexes and their preparation, can solve the problems of affecting battery life, limiting battery life, easy desorption of dyes, etc., to improve water resistance and stability properties, improved stability, and easy availability of raw materials

Active Publication Date: 2014-12-24
KUNMING UNIV OF SCI & TECH
View PDF4 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses carboxybipyridine as an immobilized ligand, which causes the dye to be easily desorbed in aqueous solution and affects the service life of the battery.
[0008] At present, pyridine ruthenium complexes with phosphate groups or carboxyl groups are often used as photosensitizers, but carboxylic acid as a fixed group is prone to hydrolysis in aqueous solutions with a pH greater than 5, causing the dye to fall off the adsorption surface, which greatly limits the battery life.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Amphiphilic benzimidazole ruthenium complex for dye-sensitized solar cell and preparation method of amphiphilic benzimidazole ruthenium complex
  • Amphiphilic benzimidazole ruthenium complex for dye-sensitized solar cell and preparation method of amphiphilic benzimidazole ruthenium complex
  • Amphiphilic benzimidazole ruthenium complex for dye-sensitized solar cell and preparation method of amphiphilic benzimidazole ruthenium complex

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The preparation method of the amphiphilic benzimidazole ruthenium complex for dye-sensitized solar cells, the specific steps are as follows:

[0050] (1) Synthesis of intermediate product 3, namely 4-[3,5-bis(oxy-1,4-butylene-pyrenyl)]-2,6-bis[2-(1-methyl)benzimidazole Base] pyridine, denoted as Py 2 G 1 MeBip.

[0051] Python 2 G 1 Synthesis of MeBip: Under a nitrogen atmosphere, 2.92g, 13.82mmol of 1-bromo-3,5-dimethoxybenzene was dissolved in 80ml of anhydrous DMF, and 3.86g, 15.20mmol of pinacol di Boron, 2.10 g, 20.73 mmol of KOAc, 1.56 g, 1.91 mmol of PdCl 2 (dppf)?CH 2 Cl 2 , stirred at 80°C for 39 hours, and the resulting solution was distilled under reduced pressure to remove DMF, CH 2 Cl 2 Extract the organic phase, Na 2 SO 4 After dehydration and distillation under reduced pressure, column chromatography was used. The stationary phase uses 63~210μm spherical silica gel, the stationary phase has a diameter of 7.5cm and a height of 8cm, and the mobi...

Embodiment 2

[0089] The preparation method of the amphiphilic benzimidazole ruthenium complex for dye-sensitized solar cells, the specific steps are as follows:

[0090] (1) Synthesis of intermediate product 3, namely 4-[3,5-bis(oxy-1,4-butylene-pyrenyl)]-2,6-bis[2-(1-methyl)benzimidazole Base] pyridine, denoted as Py 2 G 1 MeBip.

[0091] Python 2 G 1 Synthesis of MeBip: Under a nitrogen atmosphere, 3.56g, 16.40mmol of 1-bromo-3,5-dimethoxybenzene was dissolved in 85ml of anhydrous DMF, and 6.25g, 24.60mmol of pinacol di Boron, 2.410 g, 24.60 mmol of KOAc, 1.56 g, 2.016 mmol of PdCl 2 (dppf)?CH 2 Cl 2 , stirred at 80°C for 39 hours, and the resulting solution was distilled under reduced pressure to remove DMF, CH 2 Cl 2 Extract the organic phase, Na 2 SO 4 After dehydration and distillation under reduced pressure, column chromatography was used. The stationary phase uses 63~210μm spherical silica gel, the stationary phase has a diameter of 7.5cm and a height of 8cm, and the mo...

Embodiment 3

[0113] (1) Synthesis of intermediate product 3, namely 4-[3,5-bis(oxy-1,4-butylene-pyrenyl)]-2,6-bis[2-(1-methyl)benzimidazole Base] pyridine, denoted as Py 2 G 1 MeBip.

[0114] Python 2 G 1 Synthesis of MeBip: Under a nitrogen atmosphere, 3.50 g, 16.12 mmol of 1-bromo-3,5-dimethoxybenzene was dissolved in 85 ml of anhydrous DMF, and 8.19 g, 32.24 mmol of pinacol di Boron, 2.37g, 24.18mmol of KOAc, 1.98g, 2.42mmol of PdCl 2 (dppf)?CH 2 Cl 2 , stirred at 80°C for 39 hours, and the resulting solution was distilled under reduced pressure to remove DMF, CH 2 Cl 2 Extract the organic phase, Na 2 SO 4 After dehydration and distillation under reduced pressure, column chromatography was used. The stationary phase uses 63~210μm spherical silica gel, the stationary phase has a diameter of 7.5cm and a height of 8cm, and the mobile phase is 40 / 60 EtOAc / CH 3 (CH 2 ) 4 CH 3 solution, the white substance obtained by column chromatography was purified and 2.02g, 4.84mmol of 4-br...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Heightaaaaaaaaaa
Login to View More

Abstract

The invention relates to an amphiphilic benzimidazole ruthenium complex for a dye-sensitized solar cell and a preparation method of the amphiphilic benzimidazole ruthenium complex and belongs to the technical field of synthetic chemistry. The preparation method of the amphiphilic benzimidazole ruthenium complex for the dye-sensitized solar cell comprises the following steps: selecting 2,6-di(N-(2,4,6-methyl-3,5-diethyl phosphonate methyl-benzyl)-2-benzimidazolyl) pyridine as a fixed ligand, and introducing a benzimidazole group, a pyrenyl and an alkoxyl structure into an auxiliary ligand to synthesize a novel amphiphilic benzimidazole ruthenium complex [Ru(Py2G1MeBip)(XPOH)](PF6)2 for the dye-sensitized solar cell by utilizing rich coordination chemical properties, wherein stability of the solar cell can be still greatly improved and water resistance stability of the complex can be still improved due to a hydrophobic unit in an amphiphilic complex molecule even under the condition that a small amount of water exists. The complex molecule can be adsorbed onto an ITO conductive substrate and the like due to the fixed ligand in the complex molecule, and the amphiphilic benzimidazole ruthenium complex is an excellent light-sensitive dye.

Description

technical field [0001] The invention relates to an amphiphilic benzimidazole ruthenium complex for dye-sensitized solar cells and a preparation method thereof, belonging to the technical field of synthetic chemistry. Background technique [0002] Energy is the foundation of the national economy. The future economic development of the world will consume a lot of energy, and most of the traditional energy is non-renewable. Therefore, the exploration and development of renewable energy technology has become the focus of global concern. Solar energy is the most important renewable energy source for human beings. Solar cells that realize solar photoelectric conversion based on the principle of photovoltaic effect are an important way to effectively utilize solar energy. Dye-sensitized solar cell is a new type of solar cell developed by imitating the principle of photosynthesis, and it is likely to become the main source of electricity for human beings in the future. As the main...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C07F19/00H01G9/004H01G9/20H01L51/46
CPCY02E10/542Y02E10/549
Inventor 王华杨丽李孔斋魏永刚祝星
Owner KUNMING UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com