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Preparation method of non-enzyme glucose sensor electrode material based on CuO film

A technology of glucose sensor and electrode material, applied in the field of electrochemical material preparation, can solve the problems affecting the practicability of non-enzyme glucose sensor, electrode stability and poor electrocatalytic activity, and achieves reproducibility, reusability and simple structure. , the effect of orderly structure

Inactive Publication Date: 2015-11-11
MUDANJIANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The preparation method of this CuO electrode is relatively simple. However, due to some unfavorable factors in the preparation of thin films by the drop coating method, the electrode stability and electrocatalytic activity based on this method are not good, which affects the practicability of the enzyme-free glucose sensor.

Method used

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  • Preparation method of non-enzyme glucose sensor electrode material based on CuO film
  • Preparation method of non-enzyme glucose sensor electrode material based on CuO film
  • Preparation method of non-enzyme glucose sensor electrode material based on CuO film

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Experimental program
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Effect test

Embodiment 1

[0023] (1) The ITO conductive glass is ultrasonically cleaned by acetone, ethanol, and deionized water for 20 minutes each, and dried with nitrogen to form a clean substrate for use;

[0024] (2) Electrochemical deposition method was used to prepare cuprous oxide film. The experimental conditions were: the electrolyte used was a mixture of copper acetate, sodium acetate and cetyltrimethylammonium bromide, and the concentration of copper acetate was 0.02mol / L, the concentration of sodium acetate is 0.08mol / L, and the concentration of cetyltrimethylammonium bromide is 0.002mol / L; the electrolyte temperature is controlled at 60°C by a constant temperature water bath, and the three-electrode electrochemical cell is used for deposition. The electrode is ITO conductive glass, the counter electrode is a platinum sheet electrode, and the reference electrode is an Ag / AgCl electrode. The three electrodes were inserted into the solution, a constant voltage of -0.2V was applied, and the ...

Embodiment 2

[0027] (1) The FTO conductive glass was ultrasonically cleaned by acetone, ethanol, and deionized water for 20 minutes each, and dried with nitrogen to form a clean substrate for use;

[0028] (2) Electrochemical deposition method was used to prepare cuprous oxide film. The experimental conditions were: the electrolyte used was a mixture of copper acetate, sodium acetate and cetyltrimethylammonium bromide, and the concentration of copper acetate was 0.02mol / L, the concentration of sodium acetate is 0.04mol / L, and the concentration of cetyltrimethylammonium bromide is 0.02mol / L; the electrolyte temperature is controlled at 70°C by a constant temperature water bath, and the three-electrode electrochemical cell is used for deposition. The electrode is FTO conductive glass, the counter electrode is platinum sheet electrode, and the reference electrode is Ag / AgCl electrode. Insert the three electrodes into the solution, apply a constant voltage of -0.25V, and deposit for 10 minute...

Embodiment 3

[0031] (1) The ITO conductive glass is ultrasonically cleaned by acetone, ethanol, and deionized water for 20 minutes each, and dried with nitrogen to form a clean substrate for use;

[0032](2) Electrochemical deposition method was adopted to prepare cuprous oxide film. The experimental conditions were: the electrolyte used was a mixture of copper acetate, acetic acid and sodium lauryl sulfate, the concentration of copper acetate was 0.02mol / L, and the concentration of acetic acid was 0.06mol / L, the concentration of sodium lauryl sulfate is 0.008mol / L; the temperature of the electrolyte is controlled at 20°C by a constant temperature water bath, and a three-electrode electrochemical cell is used for deposition. The working electrode is ITO conductive glass, and the counter electrode is platinum. Sheet electrode, the reference electrode is Ag / AgCl electrode. The three electrodes were inserted into the solution, a constant voltage of -0.3V was applied, and the deposition time w...

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Abstract

The invention discloses a preparation method of a non-enzyme glucose sensor electrode material based on a CuO film. The preparation method mainly comprises the steps that 1, a conductive substrate is pretreated; 2, an electrochemical deposition method is adopted for preparing a Cu2O film of a special structure on the conductive glass substrate; and 3, heat treatment is performed on the Cu2O film obtained through electrochemical deposition under the air atmosphere so as to oxidize the Cu2O film into the CuO film of a similar structure, the CuO film can be directly used as the non-enzyme glucose sensor electrode material, and the electrode manufacturing process is simplified. The CuO film is composed of a plurality of spherical cluster units formed by self-assembly of spherical particles, has the uniform appearance, is large in specific surface area and can achieve the purpose of improving glucose detection sensitivity. In addition, the CuO film is stable in structure and can be well combined with substrate materials, the problem that powder materials are disengaged when the substrate is coated with the powder materials due to poor combination performance and then the number of active centers is reduced is avoided, and therefore electro-catalysis glucose activity is good.

Description

technical field [0001] The invention relates to a method for preparing a copper oxide film used for glucose detection, and belongs to the technical field of electrochemical material preparation. Background technique [0002] Diabetes is a worldwide frequently-occurring and common disease. With the improvement of people's living standards and the increase of the elderly population, its incidence is on the rise, becoming the third most dangerous disease after cardiovascular and cancer. The early symptoms of this disease are loss of control of blood sugar concentration, and prolonged illness can cause multi-system damage and various chronic diseases. Long-term research work has shown that if the glucose concentration can be strictly controlled within the normal physiological range, then the diabetic syndrome can be controlled. It can be seen that the rapid and accurate determination of blood glucose has important practical significance for the diagnosis and treatment of diabet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D9/04C25D5/48G01N27/48
Inventor 孙芳朱瑞华胡巍郝婧玮邵长斌
Owner MUDANJIANG NORMAL UNIV
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