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Graphene-based gas sensor and preparation method thereof

A gas sensor, graphene-based technology, applied in instruments, scientific instruments, measuring devices, etc., can solve the problems of cumbersome processing procedures, inability to achieve integrated manufacturing, easy to cause pollution, etc., and achieve high sensitivity, good sensitivity and selection. Sex, less pollution effect

Inactive Publication Date: 2019-07-23
XIAMEN UNIV OF TECH
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

In addition, the traditional preparation process of graphene gas sensor such as etching, chemical method and other processing procedures is cumbersome, which cannot realize integrated manufacturing and is easy to cause pollution

Method used

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  • Graphene-based gas sensor and preparation method thereof
  • Graphene-based gas sensor and preparation method thereof
  • Graphene-based gas sensor and preparation method thereof

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Embodiment Construction

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039] Disclosed in the present invention is a preparation method of a graphene-based gas sensor, which at least includes a substrate 1, a signal conversion layer 6 and a gas-sensitive material layer 7 arranged in sequence (refer to figure 1 shown), the substrate is an insulating material, the signal conversion layer is an interdigital electrode, and each layer is sequentially prepared through a 3D printing additive manufacturing process. The gas-sensitive material layer is prepared using a graphene oxide-based material, and then The graphene-based material is reduced to obtain reduced graphene oxide, and the graphene-based gas sensor is obtained.

[0040] The graphene-based gas sensor of the present invention can also be further provided with a heating layer 2 for heating the gas-sensitive material layer 7, or further provided with a...

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Abstract

The invention discloses a graphene-based gas sensor and a preparation method thereof. The graphene-based gas sensor at least comprises a substrate, a signal conversion layer and a gas-sensitive material layer which are arranged successively, the substrate is an insulating material, and the signal conversion layer is an interdigital electrode; and the layers are successively prepared through a 3D printing additive manufacturing process, the gas-sensitive material layer is prepared through an oxidized graphene-based material, then the oxidized graphene-based material is reduced, reduced oxidizedgraphene is obtained, and the graphene-based gas sensor is obtained. According to the graphene-based gas sensor and the preparation method thereof, the 3D printing additive manufacturing technology is combined with a nano-sensitive material (the oxidized graphene-based material), and the gas sensor with good sensitivity and selectivity, and being capable of realizing temperature control and integrated manufacturing is prepared.

Description

technical field [0001] The invention relates to a method for preparing a graphene-based gas sensor and the graphene-based gas sensor prepared by the method. Background technique [0002] With the rapid development of modern industrial technology, the rapid advancement of industrialization has created value for human beings, but also brought serious pollution to the human ecological environment. There are more and more types of raw materials in industrial production, more and more complex synthetic reactions, and more and more types of synthetic by-products. Some generators inevitably produce toxic or combustible gases. Once the concentration of these gases exceeds the safety standard, people and equipment will have adverse effects. The vicious incidents caused by it will ensure the safety of human production and life. With the increasing application of gas sensors, it is increasingly difficult for gas sensors prepared by traditional processes and materials to meet the need...

Claims

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Application Information

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IPC IPC(8): G01N27/12
CPCG01N27/126G01N27/127
Inventor 谢丹陈文奂舒霞云许克宇吴常健李波
Owner XIAMEN UNIV OF TECH
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