A kind of titanium-based iridium dioxide composite graphene and Mn-Mo oxide electrode and preparation method thereof

Abstract

The invention belongs to the technical field of titanium-based oxide electrodes, and in particular relates to a titanium-based iridium dioxide composite graphene and Mn-Mo oxide electrode and a preparation method thereof. Specifically, the method comprises the following steps: pretreating the titanium substrate; thermally depositing the bottom layer of iridium dioxide; preparing an electrodeposition solution; using titanium-based iridium dioxide as an electrode to anode electrodeposit titanium-based iridium dioxide composite graphene and Mn-Mo oxide electrodes. The electrode prepared by the invention has good electrochemical performance, the stability and service life of the electrode are improved by adding the Mo element, the whole process is simple and reliable, and it is easy to mass produce.

Description

technical field [0001] The invention belongs to the technical field of titanium-based oxide electrodes, and in particular relates to a titanium-based iridium dioxide composite graphene and Mn-Mo oxide electrode and a preparation method thereof. Background technique [0002] After repeated use of industrial circulating water, a series of phenomena such as poor water quality and enrichment of microorganisms and organic matter will occur, resulting in serious consequences such as pipeline scaling, poor heat transfer efficiency and even pipeline corrosion. The electrolytic treatment of industrial circulating water can kill microorganisms, degrade organic matter, and make the water quality meet the requirements. The electrolysis process has extremely high requirements on the performance of the electrode material. While meeting the high electrochemical performance, it is also necessary to ensure the stability and high service life of the electrode. Titanium-based oxide electrodes ...

AI Technical Summary

Problems solved by technology

Manganese element belongs to the transition group metal elements. Most of the oxides are non-equilibrium phases and have many lattice defects. The atoms in the non-equilibrium phase defects are in a state of high energy and have high chemical activity. However, titanium-based manganese dioxide electrodes are used as During the use of the anode, the anode will lose electrons and produce oxygen, which will penetrate into the electrode plate, resulting in an increase in the oxygen content in the manganese dioxide coating, thereby forming a passivation film on the titanium substrate

The passivation film not only has poor conductivity, increases the anode potential, increases energy consumption, but also reduces the bonding force between the chromium matrix and the manganese dioxide active layer, making MnO 2 Easy to fall off from the substrate, significantly reducing the service life of the electrode

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