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Three-function heterostructure catalyst as well as preparation method and application thereof

A heterogeneous structure, three-function technology, applied in the direction of structural parts, electrolytic components, electrolytic process, etc., can solve the problems that restrict the large-scale commercial development of electrolyzed water and metal-air batteries, and achieve good catalytic activity, stability, and multi-activity The effect of site and structure stabilization

Pending Publication Date: 2022-05-13
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Electrolyzed water and metal-air batteries are two clean energy storage and conversion technologies with different ideas, but the electrocatalytic oxygen reduction, oxygen evolution and hydrogen evolution reactions are the core of the technology, and the catalysts required for these reactions have always restricted the electrolysis of water and metals. Large-scale commercial development of air batteries

Method used

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  • Three-function heterostructure catalyst as well as preparation method and application thereof
  • Three-function heterostructure catalyst as well as preparation method and application thereof
  • Three-function heterostructure catalyst as well as preparation method and application thereof

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Embodiment 1

[0039] The present embodiment for a flexible zinc-air battery with a three-functional heterostructure catalyst comprises a carbon cloth and a composite layer disposed on the surface of the carbon cloth, the composite layer comprises CoSe 2 Nanotubes, CoSe 2 The nanotubes are coated with CoNi LDH material.

[0040] The preparation method of the present embodiment for a flexible zinc-air battery with a three-functional heterostructure catalyst comprises the following steps:

[0041] 1) Carbon cloth pretreatment

[0042] Cut the carbon cloth into 1.0cm*2.5cm, sonicate in 1mol / L aqueous hydrochloric acid solution, deionized water and ethanol in turn, and then dry in a vacuum drying box at 60 °C;

[0043] 2) Generation of nanowire precursors

[0044]1.0 g of cobalt chloride hexahydrate, 0.3 g of urea and 0.3 g of ammonium fluoride were added to 30 mL of deionized water, well stirred to dissolve, and then transferred to a 50 mL reactor; then added two pieces of carbon cloth treated in ...

Embodiment 2

[0050] The present embodiment for a flexible zinc-air battery with a three-functional heterostructure catalyst comprises a carbon cloth and a composite layer disposed on the surface of the carbon cloth, the composite layer comprises CoSe 2 Nanotubes, CoSe 2 The nanotubes are coated with FeNi LDH material.

[0051] The preparation method of the present embodiment for a flexible zinc-air battery with a three-functional heterostructure catalyst comprises the following steps:

[0052] 1) Carbon cloth pretreatment

[0053]Cut the carbon cloth into 1.0cm*2.5cm, sonicate in 1mol / L aqueous hydrochloric acid solution, deionized water and ethanol in turn, and then dry in a vacuum drying box at 60 °C;

[0054] 2) Generation of nanowire precursors

[0055] 1.0 g of cobalt chloride hexahydrate, 0.3 g of urea and 0.3 g of ammonium fluoride were added to 30 mL of deionized water, well stirred to dissolve, and then transferred to a 50 mL reactor; then added two pieces of carbon cloth treated in ...

Embodiment 3

[0061] The present embodiment for a flexible zinc-air battery with a three-functional heterostructure catalyst comprises a carbon cloth and a composite layer disposed on the surface of the carbon cloth, the composite layer comprises CoSe 2 Nanotubes, CoSe 2 The nanotubes are coated with MnNi LDH material.

[0062]The preparation method of the present embodiment for a flexible zinc-air battery with a three-functional heterostructure catalyst comprises the following steps:

[0063] 1) Carbon cloth pretreatment

[0064] Cut the carbon cloth into 1.0cm*2.5cm, sonicate in 1mol / L aqueous hydrochloric acid solution, deionized water and ethanol in turn, and then dry in a vacuum drying box at 60 °C;

[0065] 2) Generation of nanowire precursors

[0066] 1.0 g of cobalt chloride hexahydrate, 0.3 g of urea and 0.3 g of ammonium fluoride were added to 30 mL of deionized water, well stirred to dissolve, and then transferred to a 50 mL reactor; then added two pieces of carbon cloth treated in ...

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Abstract

The invention belongs to the technical field of zinc air batteries, and particularly relates to a three-function heterostructure catalyst as well as a preparation method and application thereof. The three-function heterostructure catalyst comprises carbon cloth and a composite material layer arranged on the surface of the carbon cloth, the composite material layer comprises CoSe2 nanotubes, and the CoSe2 nanotubes are coated with an MNi LDH material; m is any one of cobalt, iron and manganese. According to the three-function heterostructure catalyst disclosed by the invention, a three-dimensional branch nanostructure array is constructed by compounding MNi LDH and CoSe2 nanotubes, so that the catalyst has more active sites and higher conductivity, thereby showing better catalytic activity and stability, and the three-function heterostructure catalyst can be used for preparing an electrolytic water electrode material and a zinc air battery.

Description

Technical field [0001] The present invention belongs to the field of zinc-air battery technology, specifically relates to a three-functional heterostructure catalyst and preparation method thereof, application. Background [0002] Electrolyzed water and metal air batteries are two different ideas of clean energy storage and conversion technology, but the electrocatalytic oxygen reduction, oxygen evolution and hydrogen evolution reaction is the core of the technology, and the catalysts required for these reactions have always restricted the large-scale commercial development of electrolyzed water and metal air batteries. [0003] Traditional precious metal catalysts, such as Pt and its alloys, Ru, Ir and other precious metals are only catalytic for electrocatalytic oxygen reduction, oxygen evolution or hydrogen evolution reactions in a reaction with catalytic activity, and these precious metals have few reserves in nature. How to develop a new type of electrochemical catalyst tha...

Claims

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Application Information

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IPC IPC(8): C25B11/065C25B11/056C25B11/091C25B1/04H01M4/86H01M4/88H01M4/90
CPCC25B11/065C25B11/056C25B11/091C25B1/04H01M4/9083H01M4/9041H01M4/8673H01M4/861H01M4/8825
Inventor 彭生杰王晔宋俊楠李林林
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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