A kind of polyoxometalate composite particle electrode and its preparation method and application

A polyoxometalate and composite particle technology, which is applied to a polyoxometalate composite particle electrode and the field of preparation and application thereof, can solve the problems of low redox ability, poor electrocatalytic effect, short electrode life, etc. The method is simple and easy to implement, has strong adsorption performance, and improves the effect of surface-to-body ratio.

Active Publication Date: 2022-04-01
嘉兴市众盛环保科技有限公司
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AI Technical Summary

Problems solved by technology

Traditional electrode materials have poor electrocatalytic effect and low redox ability. In actual wastewater treatment applications, the current efficiency is low and the stability is poor. At the same time, the corrosion resistance of the material is poor, resulting in a short electrode life.

Method used

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  • A kind of polyoxometalate composite particle electrode and its preparation method and application

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Embodiment 1

[0024] Method for preparing a multi-metal oxide composite particle electrode, comprising the steps of:

[0025] 1) The titanate is dissolved in the ultrapure water of the titanate at 50 ° C, pH = 4, and a titanium sol solution having a concentration of 0.5 mol / L is formulated;

[0026] 2) CTAb (cetyltrimethylactyl bromide) is a structural guide, the structural guiding agent is dissolved in ultra-pure water, and a CTAB solution having a concentration of 2.5 mol / L is formulated;

[0027] 3) At the 200r / min stirring speed, step 1) The obtained titanium sol solution was slowly added dropwise to the same volume of step 2) The resulting CTAB solution was stirred at 55 ° C, and the reaction was stirred at 55 ° C for 8 h. The suspension of the titanium dioxide molecular sieve precursor, centrifugal separation, the resulting solid was washed with ultrapure water to obtain a mesh titanium dioxide molecular sieve pre-mobody, and it was placed in a 95 ° C oven drying.

[0028] 4) Prepar...

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Abstract

The invention discloses a polyoxometalate composite particle electrode and its preparation method and application. The preparation method of the catalyst of the invention is as follows: PMO 12 , iron salt and CH 3 Dissolve COOK in ultrapure water, stir and mix evenly to form solution A; add an equal volume of methanol to solution A, then add mesoporous titanium dioxide molecular sieve, stir and react at 1~60°C for 12~72h, and make iron salt and PMO 12 Reaction to form FePMO 12 The active ingredient is loaded on the mesoporous titania molecular sieve, filtered, and the filter residue is dried to obtain the mesoporous titania molecular sieve loaded FePMO 12 The material is the polyoxometalate composite particle electrode. The polyoxometalate composite particle electrode provided by the invention is used as a particle electrode of a three-dimensional electrode, so that it has the advantages of high electrocatalytic performance, high current utilization efficiency, corrosion resistance and the like.

Description

Technical field [0001] The present invention relates to a multi-metal oxide composite particle electrode and a preparation method thereof. Background technique [0002] BACKHURST proposes the concept of Three-Dimensional Electrode in 1969, and a three-dimensional electrode is also called a particle electrode, which is a new type of particulate or other form working electrode material in a conventional two-dimensional electrolytic tank electrode. Electrochemical reactor. The surface of the working material filling the working material is charged by an additional voltage, and an electrochemical reaction occurs on each working material surface, and countless micro-electrolytic cells are formed. Therefore, the three-dimensional electrode has a greater than the conventional two-dimensional electrode having a greater than the surface area, a higher electrolytic groove surface, which provides a large current intensity, and the minute particle spacing provides faster mass transfer veloci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/461C02F1/78C02F101/30
CPCC02F1/46114C02F1/4672C02F1/78C02F1/725C02F2001/46142C02F2101/30C02F2305/023C02F2303/14
Inventor 沈炜张煜辉
Owner 嘉兴市众盛环保科技有限公司
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