A method for preparing cathode material agcuo2 by anodic oxidation electrodeposition

A cathode material, anodizing technology, applied in electrolytic inorganic material coating, circuit, electrical components and other directions, to achieve the effect of low cost, simple and fast operation, simple experimental equipment

Inactive Publication Date: 2018-06-12
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] So far, AgCuO 2 The preparation is mainly through the precursor Ag 2 Cu 2 o 3 It is obtained by chemical oxidation (ozone, persulfate, etc.) or electrochemical oxidation, so it is necessary to prepare the precursor Ag 2 Cu 2 o 3 , and then oxidized to give the product AgCuO 2 , however, by anodic electrodeposition from the corresponding salt AgNO 3 , Cu(NO 3 ) 2 Get AgCuO directly in one step 2 method has not yet been reported

Method used

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  • A method for preparing cathode material agcuo2 by anodic oxidation electrodeposition
  • A method for preparing cathode material agcuo2 by anodic oxidation electrodeposition
  • A method for preparing cathode material agcuo2 by anodic oxidation electrodeposition

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Embodiment 1

[0015] 1) The working electrode, that is, the activation of ITO conductive glass: wash the ITO conductive glass with acetone for 3 times, then clean the conductive glass with deionized water in an ultrasonic cleaner for 30 minutes, and then place the conductive glass in dilute nitric acid solution for 30 seconds. , and finally washed with deionized water and set aside;

[0016] 2)AgCuO 2 Preparation of thin film electrodes: 0.000375mol of AgNO 3 and 0.0003mol of Cu(NO 3 ) 2 ·3H 2 O was stirred and dissolved in a certain amount of distilled water, and 0.05mol of NH was added dropwise while stirring. 3 , making it with Ag + and Cu 2+ Fully complex until the solution is dark blue and clear, then add 0.025mol NaOH solution to adjust the pH of the solution, and finally add distilled water to obtain a clear electrolyte solution with a volume of 100mL; ITO conductive glass is used as the working electrode, and the platinum sheet electrode is used as the counter electrode. The ...

Embodiment 2

[0020] 1) The working electrode, that is, the activation of ITO conductive glass: wash the ITO conductive glass with acetone for 3 times, then clean the conductive glass with deionized water in an ultrasonic cleaner for 30 minutes, and then place the conductive glass in dilute nitric acid solution for 30 seconds. , and finally washed with deionized water and set aside;

[0021] 2)AgCuO 2 Preparation of thin film electrodes: 0.000375mol of AgNO 3 and 0.0003mol of Cu(NO 3 ) 2 ·3H 2 O was stirred and dissolved in a certain amount of distilled water, and 0.05mol of NH was added dropwise while stirring. 3 , making it with Ag + and Cu 2+ Fully complex until the solution is dark blue and clear, then add 0.025mol NaOH solution to adjust the pH of the solution, and finally add distilled water to obtain a clear electrolyte solution with a volume of 100mL; ITO conductive glass is used as the working electrode, and the platinum sheet electrode is used as the counter electrode. The ...

Embodiment 3

[0025] 1) The working electrode, that is, the activation of ITO conductive glass: wash the ITO conductive glass with acetone for 3 times, then clean the conductive glass with deionized water in an ultrasonic cleaner for 30 minutes, and then place the conductive glass in dilute nitric acid solution for 30 seconds. , and finally washed with deionized water and set aside;

[0026] 2)AgCuO 2 Preparation of thin film electrodes: 0.000375mol of AgNO 3 and 0.0003mol of Cu(NO 3 ) 2 ·3H 2 O was stirred and dissolved in a certain amount of distilled water, and 0.05mol of NH was added dropwise while stirring. 3 , making it with Ag + and Cu 2+Fully complex until the solution is dark blue and clear, then add 0.025mol NaOH solution to adjust the pH of the solution, and finally add distilled water to obtain a clear electrolyte solution with a volume of 100mL; ITO conductive glass is used as the working electrode, and the platinum sheet electrode is used as the counter electrode. The s...

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Abstract

The invention discloses a method for preparing cathode material AgCuO2 through anodic oxidation electrodeposition. The method is characterized in that in strong alkaline mixed electrolyte, ammonia water and Ag + are complexed and ammonia water and Cu2 + are complexed through an anodic electrodeposition method, constant current electrodeposition is carried out in a water bath at the temperature of 40 DEG C, an AgCuO2 thin film electrode which has the sheet-like morphology and is deposited on ITO conductive glass is obtained in a short period of time, and then tests of X-ray powder diffraction, field emission scanning electron microscopy representation and a discharging experiment in an alkaline solution are conducted on the deposited AgCuO2 thin film electrode. The method has the beneficial effects that the used raw materials are low in cost, equipment is simple, operation is easy, convenient and fast, and meanwhile the environmental friendliness is achieved.

Description

technical field [0001] The invention relates to the preparation of an inorganic electrode material, in particular to the preparation by anodic oxidation electrodeposition method. Background technique [0002] AgCuO 2 It is a material with a layered crystal structure. There is a phenomenon of charge delocalization between its atoms, and some Cu presents a special valence state of +3. Therefore, it is also a kind of electrode material with good conductivity. It can be used as a cathode material for alkaline secondary batteries, and the charge and discharge time can be less than 29 seconds. [0003] So far, AgCuO 2 The preparation is mainly through the precursor Ag 2 Cu 2 o 3 It is obtained by chemical oxidation (ozone, persulfate, etc.) or electrochemical oxidation, so it is necessary to prepare the precursor Ag 2 Cu 2 o 3 , and then oxidized to give the product AgCuO 2 , however, by anodic electrodeposition from the corresponding salt AgNO 3 , Cu(NO 3 ) 2 Get AgCu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D9/06H01M4/48H01M4/54
CPCC25D9/06H01M4/48H01M4/54Y02E60/10
Inventor 刘润芦琴燕
Owner ZHEJIANG UNIV
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