Hydrogen detection device based on gas sensitive material composite microbubble cavity, preparation method and hydrogen detection system

Abstract

The invention relates to a hydrogen detection device based on a gas sensitive material composite microbubble cavity, a preparation method of the hydrogen detection device and a hydrogen detection system, and relates to the technical field of hydrogen detection. The hydrogen detection device comprises: a capillary glass tube; the microbubble cavity is formed based on the capillary glass tube, the two ends of the microbubble cavity are communicated with the capillary glass tube, and the inner diameter and the outer diameter of the microbubble cavity are larger than the inner diameter and the outer diameter of the capillary glass tube respectively; the embedded material layer is uniformly deposited on the inner wall of the microbubble cavity; wherein the embedded material layer is a gas sensitive material layer capable of chemically reacting with hydrogen, and is prepared by compounding an acrylate polymer and Pt / WO3 nanoparticles. By adopting the hydrogen detection device provided by the invention, the detection sensitivity of trace hydrogen can be remarkably improved.

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