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Preparation method of cobalt molydate and nickel foam composite film

A technology of composite film and nickel foam, which is applied in the field of preparation of cobalt molybdate/nickel foam composite film materials, can solve the problems of low capacity retention rate of electrode materials and complicated preparation process, and achieve easy contact, simple preparation process and good infiltration sexual effect

Active Publication Date: 2018-08-10
HARBIN UNIV OF COMMERCE
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the invention is to solve the complex preparation process of the existing cobalt molybdate / nickel foam composite film material, and the problem that the capacity retention rate of the application as electrode material is low, and provide a kind of preparation of cobalt molybdate / nickel foam composite film method

Method used

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  • Preparation method of cobalt molydate and nickel foam composite film
  • Preparation method of cobalt molydate and nickel foam composite film
  • Preparation method of cobalt molydate and nickel foam composite film

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specific Embodiment approach 1

[0023] Specific embodiment one: the preparation method of cobalt molybdate / foam nickel composite film of the present embodiment is implemented according to the following steps:

[0024] 1. Add sodium molybdate solid powder and cobalt chloride solid powder into the reactor, add ultrapure water, and disperse uniformly by ultrasonic to obtain a mixed solution of sodium molybdate and cobalt chloride;

[0025] 2. Carry out ultrasonic cleaning on the foamed nickel base using absolute ethanol, acetone and water respectively, then ultrasonically clean it in nitric acid, then repeatedly rinse with absolute ethanol and water and then dry it to obtain a cleaned foamed nickel base;

[0026] 3. Transfer the reactor containing the mixed solution of sodium molybdate and cobalt chloride in step 1 to the magnetic stirrer, add the cleaned foamed nickel base to the reactor and carry out magnetic stirring for 0.5-20h, and control the reaction temperature at 60 ~150°C, magnetic stirring reaction f...

specific Embodiment approach 2

[0029] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the molar ratio of sodium molybdate solid powder and cobalt chloride solid powder in step 1 is 1:1-10.

specific Embodiment approach 3

[0030] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that in step one, 0.001mol~0.003mol sodium molybdate solid powder and 0.0015mol~0.0065mol cobalt chloride solid powder are added to the reactor, adding 50mL~150mL ultrapure water.

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Abstract

The invention relates to a preparation method of a cobalt molydate and nickel foam composite film, and solves the problems that a present preparation technology of a cobalt molydate and nickel foam composite film material is complex, and the capacity conservation rate of the film as an electrode material is low. The preparation method comprises that 1) sodium molybdate solid powder and cobaltous chloride solid powder are added into a reactor, ultrapure water is added, and a sodium molybdate and cobaltous chloride mixed solution is obtained by uniform ultrasonic dispersing; 2) a nickel foam substrate is cleaned; and 3) the reactor equipped with the sodium molybdate and cobaltous chloride mixed solution is transferred to a magnetic stirrer, the nickel foam substrate is added to carry out magnetic stirring at the reaction temperature between 60 and 150 DEG C, and heat treatment is carried out to obtain the cobalt molydate and nickel foam composite film. The preparation technology is safein process and simple in operation flow, and the prepared cobalt molydate and nickel foam composite film is high in stability.

Description

technical field [0001] The invention relates to a preparation method of a cobalt molybdate / foam nickel composite film material. Background technique [0002] Cobalt molybdate is an important molybdenum compound, which has excellent properties such as photocatalysis, gas sensing, and electrochemical energy storage. It has special uses in the synthesis of many functional materials such as sensitive components, display devices, catalysts, fast ion conductors and potential battery electrodes. Compared with bulk or micron-scale materials, the activity of nano-scale cobalt molybdate is significantly improved. For some chemical reactions, its catalytic effect is several times or even dozens of times higher. In addition, compared with single metal oxides, cobalt molybdate as a binary metal oxide has the advantages of high redox activity, better conductivity, excellent rate performance and cycle stability in terms of electrochemical energy storage. Moreover, molybdenum resources a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/86H01G11/30H01G11/24
CPCH01G11/24H01G11/30H01G11/86Y02E60/13
Inventor 王晶安丽娟常江
Owner HARBIN UNIV OF COMMERCE
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