A MOF-derived porous metal phosphide nanosheet array and its application

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

Active Publication Date: 2022-05-27
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

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Effect test

Embodiment 1

[0025] (1) Cut the foam copper to a suitable size (1×3cm 2 ) Clean the surface with a degreasing solution, which is an acetone solution, and ultrasonically clean it in an ultrasonic cleaner for 30 min at room temperature to wash off the surface lipids. In order to wash away impurities such as oxides on the surface layer of foamed copper after de-oiling, it needs to be transferred into an acid solution (2 M HCl), at the same time increase the active sites of copper foam, and then ultrasonically clean for 15 minutes at room temperature to remove the copper oxide on the surface layer.

[0026] (2) 2 mmol of NiCl 2 ·6H 2 O and 2 mmol of terephthalic acid (PTA) were added to the Erlenmeyer flask, and then 40 ml of N,N-dimethylformamide (DMF) was added to the magnet and stirred on a magnetic stirrer for 30 min. Use a burette to slowly drop 2ml of deionized water and transfer it to a 100ml hydrothermal kettle, then add the foam copper in the above-mentioned vacuum drying box to t...

Embodiment 2

[0030] (1) Cut the foam copper to a suitable size (1×3cm 2 ) Clean the surface with a degreasing solution, which is an acetone solution, and ultrasonically clean it in an ultrasonic cleaner for 30 min at room temperature to wash off the surface lipids. In order to wash away impurities such as oxides on the surface layer of foamed copper after de-oiling, it needs to be transferred into an acid solution (2 M HCl), while increasing the active sites of copper foam, and then ultrasonically cleaned at room temperature for 15 minutes to remove the copper oxide on the surface. After taking it out, it was washed with a large amount of deionized water for several times and dried in a vacuum drying box for use.

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

Embodiment 3

[0035] (1) Cut the foam copper into 4 times the size (4×3cm 2 ) Clean the surface with a degreasing solution, which is an acetone solution, and ultrasonically clean it in an ultrasonic cleaner for 30 min at room temperature to wash off the surface lipids. In order to wash away impurities such as oxides on the surface layer of foamed copper after de-oiling, it needs to be transferred into an acid solution (2 M HCl), while increasing the active sites of copper foam, and then ultrasonically cleaned at room temperature for 15 minutes to remove the copper oxide on the surface. After taking it out, it was washed with a large amount of deionized water for several times and dried in a vacuum drying box for use.

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

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Abstract

A MOF-derived porous metal phosphide nanosheet array and its application belong to the technical field of MOF-derived supercapacitor materials. Nickel chloride hexahydrate (NiCl 2 ·6H 2 O), terephthalic acid (PTA) and copper foam were reductively phosphated under relatively mild conditions to prepare electrode materials with excellent supercapacitor performance - in situ growth of carbon-coated Ni on foam substrates 2 Porous nanoarrays of P (Ni 2 P / C@substrate). The material has good redox reversible properties.

Description

technical field [0001] The present invention relates to a carbon-coated Ni based on in-situ growth on foamed 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] In my country's rapid economic growth, all walks of life in my country have gradually made outstanding contributions to economic development. Against this background, my country has not forgotten its image as a responsible big country, and has continued to make its own contributions to global energy depletion, environmental protection and other issues: vigorously promote new energy-related research and development, and fully promote new energy technology research development, and continue to put forward Chinese solutions to solve energy problems in our country and around the world. [0003] In the field of energy storage, the choice of batteries and capacitors has advantages and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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