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Nickel-cobalt hydroxide/molybdenum trioxide core-shell nanorod array material and preparation method and application thereof

A technology of nickel-cobalt hydroxide and nanorod arrays, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., to improve conductivity and stability, improve stability, conductivity, and reaction Conditional controls for simple effects

Inactive Publication Date: 2019-05-03
XINJIANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there are very limited research reports on the preparation of nickel-cobalt hydroxide / molybdenum trioxide core-shell nanorod array materials and their electrochemical properties using a simple and feasible method

Method used

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  • Nickel-cobalt hydroxide/molybdenum trioxide core-shell nanorod array material and preparation method and application thereof
  • Nickel-cobalt hydroxide/molybdenum trioxide core-shell nanorod array material and preparation method and application thereof
  • Nickel-cobalt hydroxide/molybdenum trioxide core-shell nanorod array material and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A preparation method of nickel-cobalt hydroxide / molybdenum trioxide core-shell nanorod array material, comprising the following steps:

[0032] A. At room temperature, put the carbon cloth (size: 9 square centimeters) into a beaker, use 5 moles per liter of nitric acid, distilled water, and absolute ethanol in sequence for 30 minutes, and weigh it after drying;

[0033] B. 0.4 gram of ammonium molybdate was added to 10 milliliters of deionized water and fully stirred for 30 minutes to obtain a mixed solution;

[0034] C. Immerse the carbon cloth (size: 9 square centimeters) into the mixed solution obtained in step B and ultrasonicate for 10 minutes, then transfer the above mixed solution and carbon cloth to a polytetrafluoroethylene reactor; the reactor is sealed and placed in a blast Drying oven, the reaction condition is 150°C, and the reaction time is 12 hours;

[0035] D. After the reaction is stopped and the temperature is naturally lowered, take out the sample in...

Embodiment 2

[0045] A preparation method of nickel-cobalt hydroxide / molybdenum trioxide core-shell nanorod array material, comprising the following steps:

[0046] A. At room temperature, put the carbon cloth (size: 4 square centimeters) into a beaker, use 5 moles per liter of nitric acid, distilled water, and absolute ethanol for 30 minutes, and weigh it for later use after drying;

[0047] B. Add 0.5 gram of ammonium molybdate to 10 milliliters of deionized water and stir fully for 30 minutes to obtain a mixed solution;

[0048] C. Soak the carbon cloth (size: 4 square centimeters) into the mixed solution obtained in step B for 10 minutes, then transfer the above mixed solution and carbon cloth to a polytetrafluoroethylene reactor; the reactor is sealed and placed in a blast Drying oven, the reaction condition is 150°C, and the reaction time is 12 hours;

[0049] D. After the reaction is stopped and the temperature is naturally lowered, take out the sample in the reactor, wash it with a...

Embodiment 3

[0055] A preparation method of nickel-cobalt hydroxide / molybdenum trioxide core-shell nanorod array material, comprising the following steps:

[0056] A. At room temperature, put the carbon cloth (size: 6 square centimeters) into a beaker, use 5 moles per liter of nitric acid, distilled water, and absolute ethanol for 30 minutes, and weigh it for later use after drying;

[0057] B. Add 0.6 gram of ammonium molybdate to 10 milliliters of deionized water and stir fully for 30 minutes to obtain a mixed solution;

[0058] C. Immerse the carbon cloth (size: 6 square centimeters) into the mixed solution obtained in step B and ultrasonicate for 10 minutes, then transfer the above mixed solution and carbon cloth to a polytetrafluoroethylene reactor; the reactor is sealed and placed in a blast Drying oven, the reaction condition is 150°C, and the reaction time is 12 hours;

[0059] D. After the reaction is stopped and the temperature is naturally lowered, take out the sample in the re...

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Abstract

The invention belongs to the technical field of supercapacitor electrode materials, and discloses a nickel-cobalt hydroxide / molybdenum trioxide core-shell nanorod array material and a preparation method and application thereof. The core-shell nano material is prepared by the following steps: dissolving ammonium molybdate into deionized water; adding acid-treated carbon cloth, performing reacting in a hydrothermal reaction kettle to prepare a carbon cloth loaded molybdenum trioxide nanorod array precursor, inserting the precursor material as a working electrode into mixed solution containing soluble nickel-cobalt salt, selecting a potential step mode reaction by using an electrochemical workstation, and performing water washing and drying to obtain the material. The preparation method has the characteristics of simple preparation process, stable process, operation easiness, low cost, no pollution and the like. The nickel-cobalt hydroxide / molybdenum trioxide core-shell nanorod array material has a unique one-dimensional array structure, thereby facilitating the effective infiltration of an electrolyte. Meanwhile, the electrolyte can be in full contact with an active substance, so that the electrochemical performance of the material is improved, and the material can be used as a supercapacitor electrode material.

Description

technical field [0001] The invention belongs to the technical field of supercapacitor electrode materials, and more specifically relates to a nickel-cobalt hydroxide / molybdenum trioxide core-shell nanorod array material and its preparation and application. Background technique [0002] As a promising energy storage device, supercapacitors have attracted extensive attention from many researchers in recent years. The electrode material commonly used in supercapacitors-carbon-based double-layer capacitor materials, due to its relatively low specific capacity, its application development is limited and it is difficult to meet the growing demand for electrical energy storage devices. In general, compounds containing transition metals have higher specific capacities. Among them, molybdenum trioxide has been widely studied as an electrode material in high-performance supercapacitors, lithium-ion batteries and solar cells because of its advantages of low price, easy preparation, lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/24H01G11/30H01G11/46B82Y30/00B82Y40/00
CPCY02E60/13
Inventor 张红博孙志鹏贾殿赠郝爱泽
Owner XINJIANG UNIVERSITY
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