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Graphene-symmetrical ruthenium complex composite film and graphene self-assembly method by use of spin-coating method

A ruthenium complex, symmetry technology, applied in the field of molecular self-assembly chemistry, can solve the problems of low molecular adhesion of complexes, easy aggregation of graphene, etc., achieve good electrochemical activity and photophysical properties, increase adhesion, distribution uniform effect

Inactive Publication Date: 2015-05-27
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the conventional method is generally to disperse graphene and complexes in water and mix them ultrasonically

Method used

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  • Graphene-symmetrical ruthenium complex composite film and graphene self-assembly method by use of spin-coating method
  • Graphene-symmetrical ruthenium complex composite film and graphene self-assembly method by use of spin-coating method
  • Graphene-symmetrical ruthenium complex composite film and graphene self-assembly method by use of spin-coating method

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Experimental program
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Effect test

Embodiment 1

[0035] The graphene-symmetric ruthenium complex composite film, in the graphene-symmetric ruthenium complex composite film, a pair of pyrene groups in the symmetrical ruthenium complex and the surface of HOPG through the effect of non-covalent bonds, the ruthenium complex molecules fixed on the surface of HOPG, and another pair of pyrene groups fixed graphene on the ruthenium complex monomolecular film by spin coating, in which the symmetric ruthenium complex [Ru(Py 2 G 1 MeBip) 2 ](PF 6 ) 2 The general chemical formula is as follows:

[0036] .

[0037] The method for self-assembling graphene on a symmetrical ruthenium complex monomolecular film by spin coating method, its specific steps are as follows:

[0038] Step 1, self-assembled ruthenium complexes on the HOPG substrate to prepare a monomolecular film: add 20ml of dichloromethane to a clean container, and 2.312mg of symmetrical ruthenium complexes [Ru(Py 2 G 1 MeBip) 2 ](PF 6 ) 2 Dissolve in dichloromethane ...

Embodiment 2

[0045] The graphene-symmetric ruthenium complex composite film, in the graphene-symmetric ruthenium complex composite film, a pair of pyrene groups in the symmetrical ruthenium complex and the surface of HOPG through the effect of non-covalent bonds, the ruthenium complex molecules fixed on the surface of HOPG, and another pair of pyrene groups fixed graphene on the ruthenium complex monomolecular film by spin coating, in which the symmetric ruthenium complex [Ru(Py 2 G 1 MeBip) 2 ](PF 6 ) 2 The general chemical formula is as follows:

[0046] .

[0047] The method for self-assembling graphene on a symmetrical ruthenium complex monomolecular film by spin coating method, its specific steps are as follows:

[0048] Step 1, self-assembled ruthenium complexes on the HOPG substrate to prepare a monomolecular film: add 20ml of dichloromethane to a clean container, and 2.312mg of symmetrical ruthenium complexes [Ru(Py 2 G 1 MeBip) 2 ](PF 6 ) 2 Dissolve in dichloromethane ...

Embodiment 3

[0055] The graphene-symmetric ruthenium complex composite film, in the graphene-symmetric ruthenium complex composite film, a pair of pyrene groups in the symmetrical ruthenium complex and the surface of HOPG through the effect of non-covalent bonds, the ruthenium complex molecules fixed on the surface of HOPG, and another pair of pyrene groups fixed graphene on the ruthenium complex monomolecular film by spin coating, in which the symmetric ruthenium complex [Ru(Py 2 G 1 MeBip) 2 ](PF 6 ) 2 The general chemical formula is as follows:

[0056] .

[0057] The method for self-assembling graphene on a symmetrical ruthenium complex monomolecular film by spin coating method, its specific steps are as follows:

[0058] Step 1, self-assembled ruthenium complexes on the HOPG substrate to prepare a monomolecular film: add 20ml of dichloromethane to a clean container, and 2.312mg of symmetrical ruthenium complexes [Ru(Py 2 G 1 MeBip) 2 ](PF 6 ) 2 Dissolve in dichloromethane so...

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Abstract

The invention relates to a graphene-symmetrical ruthenium complex composite film and a graphene self-assembly method by use of a spin-coating method, and belongs to the technical field of molecular self-assembly chemistry. Due to a non-covalent bond effect between a pair of pyrenyl groups in the symmetrical ruthenium complex in the graphene-symmetrical ruthenium complex composite film and the surface of HOPG, the ruthenium complex is immobilized on the surface of the HOPG; the other pair of pyrenyl groups in the symmetrical ruthenium complex is capable of immobilizing the graphene on a ruthenium complex monomolecular film by virtue of spin coating. Firstly, the self-assembly of the ruthenium complex is performed on an HOPG substrate to prepare the monomolecular film; secondly, a graphene dispersion liquid is prepared; finally, the graphene is immobilized on the ruthenium complex monomolecular film by virtue of spin coating to prepare the graphene-symmetrical ruthenium complex composite film. The prepared film has a lot of advantages, such as excellent mechanical and chemical stability, and controllable film thickness.

Description

technical field [0001] The invention relates to a graphene-symmetric ruthenium complex composite film and a method for self-assembling graphene on a symmetrical ruthenium complex monomolecular film by using a spin coating method, belonging to the technical field of molecular self-assembly chemistry. Background technique [0002] Self-assembled membrane technology can design the structure of the membrane at the molecular level to obtain special properties and functions. It has been widely used in the field of electroanalysis and has become a very active research field in recent years. Molecular self-assembly technology refers to the process in which molecules spontaneously form molecular assemblies with special structures and shapes under the push of force. This technology provides people with a new method to effectively construct various structural systems from the molecular level, and has achieved great development in the past 20 years. It has been used in many research fie...

Claims

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Application Information

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IPC IPC(8): C01B31/04C07F15/00
Inventor 王华杨丽李孔斋魏永刚祝星
Owner KUNMING UNIV OF SCI & TECH
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