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Method for realizing Ni-MOF-74 in-situ growth on foam nickel

A technology of in-situ growth and foamed nickel, which is applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, etc., can solve the problems of complex process, high cost, unsuitable for industrial production, etc., to simplify the preparation process, increase the ratio, The preparation method is simple and controllable

Active Publication Date: 2018-04-06
黑龙江省工研院资产经营管理有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the technical problems that the current method for preparing MOFs is complicated in process, high in cost and unsuitable for industrialized production, and provides a method for in-situ growth of Ni-MOF-74 on nickel foam

Method used

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  • Method for realizing Ni-MOF-74 in-situ growth on foam nickel
  • Method for realizing Ni-MOF-74 in-situ growth on foam nickel
  • Method for realizing Ni-MOF-74 in-situ growth on foam nickel

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specific Embodiment approach 1

[0019] Embodiment 1: This embodiment is a method for in-situ growth of Ni-MOF-74 on nickel foam, which is specifically carried out according to the following steps:

[0020] 1. Preparation of foamed nickel current collector: Cut the foamed nickel into a cuboid of 1cm×4cm×0.5mm, soak it in a hydrochloric acid aqueous solution with a mass concentration of 1% to 10% for 5min to 10min, and then wash it with ethanol and deionized water in turn. Dry for 12 hours at a temperature of 50°C to 100°C to obtain a foamed nickel current collector;

[0021] 2. Preparation of Ni-MOF-74 by hydrothermal method: put 5mL~20mL of 2,5-dihydroxyterephthalic acid solution into the reaction kettle, put the foamed nickel current collector of step 1 vertically into the reactor with 2,5-dihydroxyterephthalic acid solution In the reaction kettle of 5-dihydroxyterephthalic acid solution, add the mixture of absolute ethanol / deionized water, react for 12h-72h under the condition of temperature of 80℃~150℃, c...

specific Embodiment approach 2

[0022] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in step 1, the nickel foam is cut into a cuboid of 1cm×4cm×0.5mm, soaked in a hydrochloric acid aqueous solution with a mass concentration of 5% for 10 minutes, and then used in turn Washed with absolute ethanol and deionized water, and dried for 12 h at a temperature of 80 °C to obtain a foamed nickel current collector. Others are the same as the first embodiment.

specific Embodiment approach 3

[0023] Embodiment 3: The difference between this embodiment and Embodiment 2 is that the concentration of the 2,5-dihydroxyterephthalic acid solution described in Step 2 is 0.135 mol / L. Others are the same as the second embodiment.

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Abstract

The invention relates to a method for realizing Ni-MOF-74 in-situ growth on foam nickel, particularly relates to a preparation method for Ni-MOF-74 in-situ growth on a foam nickel substrate having nonickel source ions and solves technical problems of complex process, high cost and not-suitable-for-industrial production existing in an MOFs method in the prior art. The method comprises steps that 1, a foam nickel current collector is prepared; and 2, the hydrothermal in-situ growth method is utilized to prepare Ni-MOF-74. The method is advantaged in that the method is simple and controllable, cost is low, the raw material is simple and available, large-scale preparation can be realized, additionally adding the nickel ions for the prepared Ni-MOF-74 is not needed, uniform in-situ growth of an organic-ligand 2,5-dihydroxy-terephthalic acid on the foam nickel is realized, and the prepared Ni-MOF-74 can be widely applied to the super capacitor and gas separating field.

Description

technical field [0001] The invention relates to a preparation method of in-situ growth Ni-MOF-74. Background technique [0002] With the popularization of portable electronic devices and the vigorous development of the clean and environmentally friendly electric vehicle industry, the research on electrical energy storage and release has become a hot issue concerned by governments and scientists around the world today. Supercapacitors are considered to be a clean and efficient electrical energy storage and discharge device with high power density, short charging time, long service life, and no pollution to the environment. It has huge application value and market potential in many fields such as mobile communication, national defense, aerospace, consumer electronics, etc. At present, supercapacitors have been widely used in hybrid electric vehicles. [0003] Metal-organic frameworks (MOFs) have the advantages of diverse composition and structure, high specific surface area a...

Claims

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Application Information

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IPC IPC(8): H01G11/86H01G11/24H01G11/30
CPCY02E60/13H01G11/86H01G11/24H01G11/30
Inventor 徐洪波韩莹平赵九蓬李垚
Owner 黑龙江省工研院资产经营管理有限公司
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