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Composite film with high electrochemical performance and preparation method of composite film

An electrochemical and composite membrane technology, applied in circuits, capacitors, electrical components, etc., can solve the problems of affecting assembly quality, complex assembly process, and high equipment requirements, and achieve excellent electrochemical performance, low preparation cost, and high bonding strength. Effect

Active Publication Date: 2015-04-29
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] At present, the molecular membrane self-assembly method is an effective method that is beneficial to control the assembled structure and shape. The molecules of the self-assembled membrane are arranged in an orderly and compact manner, and the structure is regular, but the assembly process is complicated and requires high equipment requirements. better laboratory
Most of the generated membranes have poor stability to heat, chemical environment, time and external pressure. At the same time, the preparation of the membrane requires expensive membrane tanks and strict substrates. In addition to the substrate, the concentration of the solution, pH, cleaning and adsorption time, etc. will affect the assembly. quality

Method used

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  • Composite film with high electrochemical performance and preparation method of composite film
  • Composite film with high electrochemical performance and preparation method of composite film
  • Composite film with high electrochemical performance and preparation method of composite film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1: This high electrochemical performance composite film is that the pyrene group in the amphiphilic ruthenium complex molecule self-assembles to the surface of highly oriented pyrolytic graphite through the action of non-covalent bonds, and then the self-assembled highly oriented pyrolysis The graphite substrate is repeatedly and alternately immersed in the zirconium oxychloride solution and the symmetrical ruthenium complex solution, and the amphiphilic ruthenium complex molecules and the symmetrical ruthenium complex molecules, as well as the symmetrical ruthenium complex molecules are connected by zirconium ions , to obtain a composite film with high electrochemical performance with adjustable layers and thickness; the chemical formula of the amphiphilic ruthenium complex is as follows:

[0040] ;

[0041] The chemical formula of the symmetrical ruthenium complex is as follows:

[0042] .

[0043] The specific steps of the method for preparing a compos...

Embodiment 2

[0068] Example 2: This high electrochemical performance composite film is that the pyrene group in the amphiphilic ruthenium complex molecule self-assembles to the surface of highly oriented pyrolytic graphite through the action of non-covalent bonds, and then the highly oriented pyrolytic graphite after self-assembly is The graphite substrate is repeatedly and alternately immersed in the zirconium oxychloride solution and the symmetrical ruthenium complex solution, and the amphiphilic ruthenium complex molecules and the symmetrical ruthenium complex molecules, as well as the symmetrical ruthenium complex molecules are connected by zirconium ions , to obtain a composite membrane with high electrochemical performance with adjustable layers and thickness; the chemical formula of the amphiphilic ruthenium complex is as follows:

[0069] ;

[0070] The chemical formula of the symmetrical ruthenium complex is as follows:

[0071] .

[0072] The specific steps of the method ...

Embodiment 3

[0082] Example 3: This high electrochemical performance composite film is that the pyrene group in the amphiphilic ruthenium complex molecule self-assembles to the surface of highly oriented pyrolytic graphite through the action of non-covalent bonds, and then the self-assembled highly oriented pyrolysis The graphite substrate is repeatedly and alternately immersed in the zirconium oxychloride solution and the symmetrical ruthenium complex solution, and the amphiphilic ruthenium complex molecules and the symmetrical ruthenium complex molecules, as well as the symmetrical ruthenium complex molecules are connected by zirconium ions , to obtain a composite film with high electrochemical performance with adjustable layers and thickness; the chemical formula of the amphiphilic ruthenium complex is as follows:

[0083] ;

[0084] The chemical formula of the symmetrical ruthenium complex is as follows:

[0085] .

[0086] The specific steps of the method for preparing a compo...

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Abstract

The invention discloses a composite film with high electrochemical performance and a preparation method of the composite film, and belongs to the field of composite material preparation. The composite film is formed by alternately self-assembling amphipathic ruthenium complex molecular films and symmetrical ruthenium complex molecular films, a highly oriented pyrolytic graphite(Highly Oriented Pyrolytic Graphite, HOPG) is used as a base, wherein an amphipathic ruthenium complex is [Ru(Py2G1MeBip)(XPOH)](PF6)2, and a symmetrical ruthenium complex is [Ru(XPOH)2](PF6)2. The composite film obtained by the preparation method disclosed by the invention is uniformly and sufficiently modified on the electric conduction base, so that the composite film has favorable mechanical stability and chemical stability. The composite film unifies the respective advantages of two kinds of materials, so that compared with a single self-assembly film, the electrochemical performance and the stability of the composite film are obviously improved. The composite film can be operated by using a simple container under a room temperature without special conditions or complex costly instruments. Compared with other layered assembly techniques, the composite film disclosed by the invention is simple and convenient to operate, is short in assembly time, is high in bond strength with the base, and has better popularization and application values.

Description

technical field [0001] The invention relates to a composite membrane with high electrochemical performance and a preparation method thereof, belonging to the field of composite material preparation. Background technique [0002] Because the layer-by-layer self-assembly technology has the characteristics of controlling the size, composition and shape of the product in the preparation of functional thin film materials, its application research has developed rapidly and has been highly valued by researchers. After decades of rapid development, layer-by-layer self-assembly technology has become an important research method and direction between the research fields of chemistry, physics, biology, materials, manufacturing and nanoscience. Molecular devices, as the most idealized electronic devices, have attracted extensive attention from scientists all over the world, and are one of the most researched fields of self-assembly technology applications. [0003] The self-assembly pr...

Claims

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Application Information

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IPC IPC(8): H01G9/20H01G9/042H01G9/004
Inventor 王华杨丽李孔斋魏永刚祝星
Owner KUNMING UNIV OF SCI & TECH
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