Binary carbon material-conductive polymer composite nano gas-sensitive thin film and preparation method thereof

A technology of conductive polymers and binary carbon materials, which is applied in the field of composite nanomaterials and film technology, can solve the problems of poor selectivity and stability of single carbon material gas-sensing films, achieve excellent gas-sensing performance, and improve gas-sensing properties. Characteristics and stability, the effect of good and stable performance
CN103897183AActive Publication Date: 2014-07-02UNIV OF ELECTRONIC SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
UNIV OF ELECTRONIC SCI & TECH OF CHINA
Publication Date
2014-07-02

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Abstract

The invention discloses a binary carbon material-conductive polymer composite nano gas-sensitive thin film and a preparation method thereof. The binary carbon material-conductive polymer composite nano gas-sensitive thin film is a composite thin film formed by self-assembling a binary carbon material and a conductive polymer material through chemical polymerization, the binary carbon material is a combination of any of a graphene material and a carbon nanotube as well as a carbon nanofiber, nano porous carbon or nano graphite. The composite nano thin film with excellent gas-sensitive characteristic can be prepared by fully utilizing the excellent conductivity and high specific surface area of the carbon nano material and the peculiar response characteristic of the conductive polymer, playing the synergistic and supplementary roles generated among different materials and combining an orderly controllable self-assembled film forming method. The binary carbon material-conductive polymer composite nano gas-sensitive thin film and the preparation method thereof can open up a new approach for the sensitive thin film for a gas sensor which is high in performance, low in cost and capable of working at room temperature.
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Description

technical field

[0001] The invention relates to the field of composite nanomaterials and thin film technology, in particular to a binary carbon material-conductive polymer self-assembled composite nanometer gas-sensitive thin film and a preparation method thereof. Background technique

[0002] As a new type of gas-sensing material, graphene has bright application prospects in the field of gas sensors due to its large specific surface area, unique carrier characteristics and excellent electrical properties; at the same time, various carbon nanomaterials, such as carbon nanotubes, Carbon nanofibers, nanoporous carbon, or nanographite, etc., have become one of the most promising gas-sensing materials due to their rich pore structure and high specific surface area. Gas sensors based on different carbon materials have high sensitivity and low detection limit, but poor selectivity; at the same time, the excellent chemical properties of the gas-sensitive film also depend on the goo...

Claims

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