Methanol concentration sensing probe, methanol concentration sensing method and methanol concentration sensor

Abstract

The invention relates to a methanol concentration sensing probe. The probe which comprises an insulation substrate, a cathode layer and an anode layer is characterized in that the cathode layer and the anode layer are respectively combined with the surface of the insulation substrate; the cathode layer has a plurality of cathode contacts which are alternately assigned on the surface of the insulation substrate, wherein one ends of the cathode contacts are connected together; the anode layer has a plurality of anode contacts which are alternately assigned on the surface of the insulation substrate, wherein the anode contacts are connected together; and the cathode contacts and the anode contacts are alternately assigned. The invention also relates to a methanol concentration sensor with the methanol concentration sensing probe and a methanol concentration sensing method. The methanol concentration sensing probe has the advantages of simple and compact structure, small occupation space, and accurate and rapidly obtained measure result. There is an obvious potential difference between the cathode layer and the anode layer in a methanol solution during measuring, and the methanol concentration can be obtained by measuring the potential difference between the cathode and the anode, so the measure result is accurate through above potential difference measure mode, and the methanol concentration measure is convenient and rapid.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to a methanol concentration sensing probe, a methanol concentration sensing method and a methanol concentration sensor. Background technique [0002] Energy development has always been one of the research hotspots in the world. Energy with the advantages of high efficiency, energy saving, low emission or zero emission has been widely valued by countries all over the world, and fuel cell technology is one of them. Fuel cells convert chemical energy into electrical energy through oxidation-reduction reactions at the cathode and anode. It has the characteristics of high energy conversion efficiency, low pollution, wide application range, fast load response, and high operating quality. [0003] Direct methanol fuel cell (DMFC) is a kind of fuel cell, which mainly uses gaseous or liquid methanol as fuel, and uses Nafion type proton exchange membrane as diaphragm. Since t...

AI Technical Summary

Problems solved by technology

However, this method of determination can only be applied to the online determination of methanol concentration, and the determination time is long, and the concentration of the electrode methanol solution cannot be quickly measured, which causes a lag in the online instant measurement result.

Images