Method for electrochemically detecting hydrogen peroxide based on nano copper oxide modified printed electrode

A nano-copper oxide and hydrogen peroxide technology, applied in the field of electrochemical detection, can solve the problems of limited quantity and expensive precious metals, and achieve the effects of low cost, high sensitivity and short production cycle

Pending Publication Date: 2020-12-01
TIANJIN UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, precious metals are expensive and limited in quantity, and the research on nanoelectrodes of conventional metals has gradually attracted attention.

Method used

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  • Method for electrochemically detecting hydrogen peroxide based on nano copper oxide modified printed electrode
  • Method for electrochemically detecting hydrogen peroxide based on nano copper oxide modified printed electrode
  • Method for electrochemically detecting hydrogen peroxide based on nano copper oxide modified printed electrode

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Embodiment Construction

[0026] Below in conjunction with specific example, the present invention is further described:

[0027] In the present invention, commercially available Cu(OH) 2 Powder, the CHI800D series electrochemical analyzer used was purchased from Shanghai Chenhua Instrument Co., Ltd., China.

[0028] Using a high-frequency induction heater, 5g Cu(OH) 2 Heating is carried out so that it is thermally decomposed to produce water and CuO. During the heating process, the temperature was kept at 1200 degrees Celsius. The obtained CuO powder was ground in a ball mill, dissolved in absolute ethanol, and then filtered through nylon filter paper under the action of a suction filter. The CuO powder obtained by collecting and preparing was dried in an electric heating blast drying oven, and the temperature was kept at 100 degrees Celsius. In order to further increase the specific surface area of ​​the CuO powder, a marble bowl was used to grind and dry the CuO powder again, and finally the CuO...

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Abstract

The invention discloses a method for electrochemically detecting hydrogen peroxide based on a nano copper oxide modified printed electrode, which adopts the nano copper oxide modified printed electrode as an electrochemical detection device, has good electrochemical catalysis effect on oxidation of hydrogen peroxide, and is simple in electrode preparation method and good in stability and repeatability. The detection range of the method is 50-300 muM, in the concentration range, the response current of hydrogen peroxide and the concentration have a good linear relationship, the linear relationship coefficient is 0.99856, and the lowest detection limit is 50 muM. The method is low in hydrogen peroxide detection cost, high in sensitivity, simple to operate and good in selectivity, and has practical application value.

Description

technical field [0001] The invention relates to the field of electrochemical detection, and more particularly, to a method for electrochemical detection of hydrogen peroxide based on a printed electrode modified by nano-copper oxide. Background technique [0002] In recent years, nanoelectrode electrochemical sensor research has been significantly advanced in organic, inorganic and biological analysis. Due to the special properties of nanomaterials, especially catalytic activity and biocompatibility, they may play an important role in reducing overpotentials, improving the reversibility of electrode processes, and improving current sensitivity and selectivity. Generally, research interests in nanoelectrodes focus on metal nanometers, especially noble metal nanometers. However, precious metals are expensive and limited in quantity, and the research on nano-electrodes of conventional metals has gradually attracted attention. [0003] The research on the preparation methods, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/48G01N27/30
CPCG01N27/48G01N27/30
Inventor 潘鹏李沛君伏特臧传来李秋洋杜祖滟张容玮
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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