Preparation method of two-dimensional iron oxide doped mesoporous polypyrrole/graphene composites
A technology of mesoporous polypyrrole and composite materials, which is applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, structural parts, etc., can solve problems such as cumbersome methods, low specific capacitance, and single material performance, and achieve good application prospects , good stability, high specific capacity effect
Active Publication Date: 2019-11-26
SHANGHAI JIAOTONG UNIV
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Problems solved by technology
But the performance of the obtained material is single, and the specific capacitance is low (385F / g)
[0006] However, the existing methods for preparing mesoporous materials with hard templates are relatively cumbersome, and the templates are not easy to remove and have high toxicity.
[0007] There is no metal oxide-doped two-dimensional mesoporous conductive polymer / graphene composite material in the prior art
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[0036] like figure 2 As shown, a preferred embodiment of the present invention provides a kind of preparation method of two-dimensional iron oxide doped mesoporous polypyrrole / graphene composite material, and this preparation method uses ferric chloride as catalyst, and original In order to form a two-dimensional iron oxide doped mesoporous polypyrrole / graphene composite with a sandwich heterostructure, a sheet of mesoporous polypyrrole was synthesized.
[0037] Specifically, the above-mentioned preparation method comprises the following steps:
[0038] Step 1. Self-assembly of block polymers: self-assembly of diblock polymers in solution to form spherical micelles to obtain polymer micelles solution, and spherical micelles are used as mesoporous soft templates;
[0039] Step 2. Add 1.5 mL of graphene solution with a concentration of 1 mg / L modified by the Hummers method and 75 μL of pyrrole into the polymer micelle solution. After stirring for 1 h, add 225 mg of ferric chlo...
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Abstract
The invention discloses a preparation method of a two-dimensional iron oxide doped mesoporous polypyrrole / graphene composite material. The preparation method includes: in-situ synthesis of lamellar mesoporous polypyrrole is performed at two sides of graphene by regarding iron chloride as a catalyst to form the two-dimensional iron oxide doped mesoporous polypyrrole / graphene composite material witha sandwich heterostructure. The invention also discloses a preparation method of a two-dimensional N C-doped / ferroferric oxide / graphene composite material. According to the two-dimensional iron oxidedoped mesoporous polypyrrole / graphene composite material and the two-dimensional N C-doped / iron oxide / graphene composite material obtained by the method, extremely high specific capacity and good stability are achieved in a supercapacitor, the oxidation reduction reaction can be catalyzed, and good application prospect is achieved in the field of energy materials.
Description
technical field [0001] The invention relates to a metal oxide-doped two-dimensional mesoporous conductive polymer / graphene composite material, in particular to a two-dimensional iron oxide mesoporous polypyrrole / graphene composite material and its preparation method and application. Background technique [0002] In recent years, graphene, as a typical two-dimensional material, has been widely studied. Graphene has good electrical conductivity, high specific surface area, unique mechanical properties and thermal properties, making it a promising application prospect in energy storage and conversion. However, studies have shown that graphene is prone to aggregation, which greatly limits its application in electrode materials. [0003] Conductive polymers such as polypyrrole can be used in supercapacitor electrodes due to their low cost, high storage capacity, and good chemical modifiability. Mesoporous conductive polymers have a mesoporous structure and high conductivity, wh...
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IPC IPC(8): H01G11/34H01G11/36H01G11/86H01M4/36
CPCH01G11/34H01G11/36H01G11/86H01M4/362Y02E60/10Y02E60/13
Inventor 李倩麦亦勇朱姝妍田豪王楠徐富贵张鹏飞
Owner SHANGHAI JIAOTONG UNIV