Nano fiber coupling structure gas sensitive material and preparation method and application thereof

A gas-sensitive material and nanofiber technology, applied in nanotechnology, nanotechnology, material resistance, etc., can solve the problems of long response recovery time, poor selectivity, and low sensitivity, and achieve simple and convenient production equipment, improved sensitivity, and low cost Effect
CN104407018AInactive Publication Date: 2015-03-11CHINA UNIV OF PETROLEUM (EAST CHINA)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (EAST CHINA)
Publication Date
2015-03-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a nano fiber coupling structure gas sensitive material and a preparation method and application thereof, the gas sensitive material is a one-dimensional coupled structure of carbon nanofibers and nano SnO2, and is based on the carbon nano fibers as a backbone, and a large number of SnO2 nano sheets are grown on the surface by deposition. Polymer nanofibers are obtained by electrostatic spinning, and the carbon nano fibers are prepared by pre oxidation and high temperature carbonization processes, the carbon nano fibers are used as the backbone, the SnO2 nano sheets are subsequently grown and deposited on the surface of the fibers by hydrothermal reaction to obtain a quasi one-dimensional coupled structure nano material, and the quasi one-dimensional coupled structure nano material is assembled into a gas sensor. The hydrogen sensing properties of semiconductor materials are improved, in addition to improvement of the sensitivity, the device operating temperature and response-recovery time are greatly improved, preparation process is simple, the method is convenient to operate and repeat, and the production equipment is simple and convenient, requirement on the production condition is low, production cost is low, and the nano fiber coupling structure gas sensitive material has wide market application prospect and is easy to popularize and use.
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Description

[0001] technical field

[0002] The invention belongs to the field of nano-semiconductor sensing technology, in particular to a nano-semiconductor material with coupling structure prepared by electrospinning technology combined with hydrothermal synthesis technology, in particular to a gas-sensing material with nanofiber coupling structure and its preparation method and Applications, used to build high-performance hydrogen sensors. Background technique

[0003] The development of science and technology has continuously improved the degree of modern industrialization. In recent years, the types and quantities of gases used in the production process and gases generated in the production process have also increased. Many of these gases are flammable, explosive, toxic (such as ethanol, hydrogen, CO, H 2 S, LPG, etc.). Therefore, in order to ensure safe production, it is necessary to strengthen monitoring and management of gas storage, transportation, and use. Therefore, among...

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
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