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MOF-derived porous metal phosphide nanosheet array and application

An in-situ growth, foamed copper technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of long charging time, large energy loss, low durability, etc., to achieve large capacity , good rate performance, good cycle stability

Active Publication Date: 2021-08-24
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the field of energy storage, there are advantages and disadvantages in the selection of batteries and capacitors: batteries have the advantages of high energy density and strong continuity, but they also have the disadvantages of long charging time and large energy loss; capacitors have extremely high charge and discharge rates, Strong instantaneous power intensity, but the problem of low capacity and low persistence is often criticized

Method used

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  • MOF-derived porous metal phosphide nanosheet array and application
  • MOF-derived porous metal phosphide nanosheet array and application
  • MOF-derived porous metal phosphide nanosheet array and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Cut the copper foam into a suitable size (1×3cm 2 ) Clean the surface with a degreasing liquid, the degreasing liquid is an acetone solution, and ultrasonically clean it in an ultrasonic cleaning machine at room temperature for 30 minutes to wash away the surface lipid. In order to wash away impurities such as oxides on the surface of foamed copper after degreasing, it needs to be transferred into an acid solution (2 M HCl), increase the active sites of foamed copper at the same time, and then ultrasonically clean at room temperature for 15 minutes to remove the copper oxide on the surface. After taking it out, wash it several times with a large amount of deionized water and dry it in a vacuum oven for use.

[0026] (2) 2mmol of NiCl 2 ·6H 2 O and 2mmol of terephthalic acid (PTA) were added to the Erlenmeyer flask, and then 40ml of N,N-dimethylformamide (DMF) was added to the magnetic sub and stirred on a magnetic stirrer for 30min. Use a burette to slowly add 2...

Embodiment 2

[0030] (1) Cut the copper foam into a suitable size (1×3cm 2 ) Clean the surface with a degreasing liquid, the degreasing liquid is an acetone solution, and ultrasonically clean it in an ultrasonic cleaning machine at room temperature for 30 minutes to wash away the surface lipid. In order to wash away impurities such as oxides on the surface of foamed copper after degreasing, it needs to be transferred into an acid solution (2 M HCl), increase the active sites of foamed copper at the same time, and then ultrasonically clean at room temperature for 15 minutes to remove the copper oxide on the surface. After taking it out, wash it several times with a large amount of deionized water and dry it in a vacuum oven for use.

[0031] (2) 2mmol of NiCl 2 ·6H 2 O and 2mmol of terephthalic acid (PTA) were added to the Erlenmeyer flask, and then 40ml of N,N-dimethylformamide (DMF) was added to the magnetic sub and stirred on a magnetic stirrer for 30min. Use a burette to slowly add 2...

Embodiment 3

[0035] (1) Cut the copper foam to 4 times the size (4×3cm 2 ) Clean the surface with a degreasing liquid, the degreasing liquid is an acetone solution, and ultrasonically clean it in an ultrasonic cleaning machine at room temperature for 30 minutes to wash away the surface lipid. In order to wash away impurities such as oxides on the surface of foamed copper after degreasing, it needs to be transferred into an acid solution (2 M HCl), increase the active sites of foamed copper at the same time, and then ultrasonically clean at room temperature for 15 minutes to remove the copper oxide on the surface. After taking it out, wash it several times with a large amount of deionized water and dry it in a vacuum oven for use.

[0036] (2) 2mmol of NiCl 2 ·6H 2 O and 2mmol of terephthalic acid (PTA) were added to the Erlenmeyer flask, and then 40ml of N,N-dimethylformamide (DMF) was added to the magnetic sub and stirred on a magnetic stirrer for 30min. Use a burette to slowly add 2m...

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Abstract

The invention discloses an MOF-derived porous metal phosphide nanosheet array and application, and belongs to the technical field of MOF derivative supercapacitor materials. Nickel chloride hexahydrate (NiCl2. 6H2O), terephthalic acid (PTA) and foamy copper are subjected to reduction and phosphorization under a relatively mild condition to prepare an electrode material with excellent supercapacitor performance, namely a porous nano array (Ni2P / C@substrate) of carbon-coated Ni2P grown on a foam substrate in situ. The material has good redox reversibility.

Description

technical field [0001] The invention relates to a carbon-coated Ni based on in-situ growth on foam copper 2 P / Cu 3 P porous nanoarrays (Ni 2 P / C@Cu 3 The preparation method of P-CF) belongs to the technical field of MOF derivative supercapacitor materials. Background technique [0002] With the rapid economic growth in our country, all walks of life in our country have gradually made outstanding contributions to economic development. Against such a background, my country will not forget its image as a responsible big country, and continue to make its own contribution to global energy depletion, environmental protection and other issues: vigorously promote research and development related to new energy, and fully promote research on new energy technologies The development of China continues to propose Chinese solutions to solve the energy problems of the country and the world. [0003] In the field of energy storage, there are advantages and disadvantages in the selection...

Claims

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Application Information

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IPC IPC(8): H01G11/86H01G11/32H01G11/30H01G11/26H01G11/24B82Y30/00B82Y40/00
CPCH01G11/86H01G11/24H01G11/26H01G11/32H01G11/30B82Y30/00B82Y40/00Y02E60/13
Inventor 金玉红李乐园张倩倩刘晶冰汪浩
Owner BEIJING UNIV OF TECH
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