Interdigital electrode material with vertical orientation three-dimensional structure and preparation method and application thereof

Abstract

The invention discloses an interdigital electrode material with a vertical orientation three-dimensional structure and a preparation method and application thereof. The interdigital electrode material with the vertical orientation three-dimensional structure is formed by arranging nanosheet layer structures between interdigitals of an interdigital electrode at intervals in a near-vertical orientation mode, wherein the nanosheet layer structures are formed by stacking nanometer materials. The form of the nanometer material is one or more of zero-dimensional quantum dots, nanometer particles, one-dimensional nanometer tubes, nanometer rods, nanometer wires or two-dimensional nanometer sheet layers. The preparation method comprises the following steps: coating a nano material dispersion liquid in a groove of an interdigital electrode, freezing, and then freeze-drying, thereby obtaining the electrode. The interdigital electrode material with the vertical orientation three-dimensional structure is applied to a sensor. The interdigital electrode material with the vertical orientation three-dimensional structure is wide in raw material source, the thickness of a nanometer material is as low as 6 microns, the composite state of the nanometer material can be regulated and controlled, and the gas sensing response degree is remarkably improved. The method is simple in process, low in cost and suitable for industrial production.

Description

technical field [0001] The invention relates to an interdigital electrode material, a preparation method and an application, in particular to an interdigital electrode material with a vertically oriented three-dimensional structure, a preparation method and an application. Background technique [0002] Constructing a three-dimensional structure perpendicular to the substrate orientation is a major topic of "bottom-up" assembly of nanomaterials, and has good application prospects in the fields of energy, catalysis, and seawater desalination. Currently, researchers use ice crystals as templates to construct vertically oriented three-dimensional structures. By regulating the directional growth of the ice crystal template, the nanomaterials can be oriented and arranged, and the prepared three-dimensional structure has a convenient material transport channel. Therefore, the three-dimensional structure perpendicular to the substrate orientation has great potential in the fields of...

AI Technical Summary

Problems solved by technology

[0006] (1) The existing research is mainly on the construction of airgel-like bulk materials, and the construction of three-dimensional structures of nanomaterials with a thickness of less than 30 μm is challenging and has not been reported yet;

[0007] (2) At present, the methods of preparing gas sensors mainly include drop coating method and brush coating method. Although the preparation process of these methods is simple, the gas sensitive materials are often stacked on the electrodes in agglomerated form, and it is difficult to control the composite state of materials and electrodes.

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