Three-dimensional ordered porous ruthenium dioxide membrane electrode and preparation method thereof

A ruthenium dioxide film, three-dimensional ordered technology, applied in chemical instruments and methods, oxidized water/sewage treatment, water/sludge/sewage treatment, etc. The increase of chemical active area and the low utilization rate of ruthenium dioxide can achieve the effect of increasing electrochemical active sites, increasing specific surface area, and enhancing utilization rate.
CN109368744AInactive Publication Date: 2019-02-22NANJING UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING UNIV OF SCI & TECH
Publication Date
2019-02-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of electrocatalytic electrode preparation, and particularly relates to a three-dimensional ordered porous ruthenium dioxide membrane electrode and a preparation method thereof. The membrane electrode comprises a porous titanium matrix and a three-dimensional ordered ruthenium dioxide active surface layer, wherein the three-dimensional ordered rutheniumdioxide active surface layer has a communicated structure formed by three-dimensional ordered spherical piling, and a porous channel for liquid flowing is formed among the piled spheres. According tothe ruthenium dioxide membrane electrode, emulsion containing polystyrene microspheres is dripped to the surface of a titanium plate, hydrate ruthenium dioxide grows in gaps in a template by an electrodeposition method, and the template is removed through high-temperature sintering and is dehydrated to obtain the three-dimensional ordered porous ruthenium dioxide membrane electrode. The electrodecan overcome the defect that a traditional ruthenium dioxide electrode has a compact structure, the utilization rate of ruthenium dioxide is not high and ruthenium dioxide cannot applied to a filter type electrochemical oxidation system, the contact area, mass transfer efficiency and filtration flux can be greatly improved, and meanwhile, the preparation cost and operation energy consumption can be reduced.
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Description

technical field

[0001] The invention belongs to the technical field of electrocatalytic electrode preparation, and in particular relates to a three-dimensional ordered porous ruthenium dioxide film electrode and a preparation method thereof. Background technique

[0002] Cycloazoles are widely used in the pesticide industry. They have the characteristics of high toxicity and complex water quality. They are refractory wastewater and cannot be efficiently removed by traditional water treatment processes.

[0003] Electrochemical oxidation is widely used in the treatment of refractory wastewater because of its strong controllability, rapid response, high efficiency, and no secondary pollution. Electrochemical oxidation is the use of catalytically active electrodes to destroy pollutants through oxidation reactions or anode reaction products to achieve the degradation of pollutants. The nature of the active layer on the electrode surface determines the degree of oxidation of the...

Claims

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