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Preparation method of metal compound nano-structure thin-film material

A technology of metal compounds and nanostructures, applied in nanotechnology, nanotechnology, structural parts, etc., can solve the problems of reducing the utilization efficiency of reactants, achieve the effect of improving utilization efficiency and expanding the scope of application

Inactive Publication Date: 2017-06-13
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually these methods not only deposit on the substrate, but also randomly deposit on the inner surface of the container, reducing the utilization efficiency of reactants

Method used

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  • Preparation method of metal compound nano-structure thin-film material
  • Preparation method of metal compound nano-structure thin-film material
  • Preparation method of metal compound nano-structure thin-film material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Preparation of β-Ni(OH) on the surface of nickel foam substrate 2 The method of nanosheet thin film is as follows:

[0039] Freshly prepared 20 ml Ni(NO 3 ) 2 Aqueous solution, Ni(NO 3 ) 2The concentration is 0.025mol / L, and transferred to a 50 ml stainless steel autoclave with polytetrafluoroethylene as the liner. Will pre-cleaned 10 x 10mm 2 The nickel foam base is placed horizontally on the bottom of the polytetrafluoroethylene liner. The autoclave was sealed and hydrothermally reacted at a temperature of 200°C for 24 hours. The product is cooled, separated, washed and dried from the reaction solution. Prepared β-Ni(OH) 2 The nanosheet thin film is used as the negative electrode material, together with the nickel foam substrate, it is directly applied to the sodium-ion battery.

Embodiment 2

[0041] The method for preparing NiO nanosheet film on the surface of nickel foam substrate is as follows:

[0042] Freshly prepared 20 ml Ni(NO 3 ) 2 Aqueous solution, Ni(NO 3 ) 2 The concentration is 0.025mol / L, and transferred to a 50 ml stainless steel autoclave with polytetrafluoroethylene as the liner. Will pre-cleaned 10 x 10mm 2 The nickel foam base is placed horizontally on the bottom of the polytetrafluoroethylene liner. The autoclave was sealed and hydrothermally reacted at a temperature of 200°C for 24 hours. The product is cooled, separated, washed and dried from the reaction solution to obtain β-Ni(OH) 2 film precursors. The prepared β-Ni(OH) 2 The thin film precursor was placed in a burning boat, and then put into the quartz tube of the tubular resistance furnace, and the temperature was raised at 1°C / min in a nitrogen-protected atmosphere. When the temperature rose to the set temperature of 300°C, it was kept for 6 hours, and then naturally cooled to ro...

Embodiment 3

[0044] Preparation of Co on the surface of nickel foam substrate 3 o 4 The nanoparticle film method is as follows:

[0045] Freshly prepared 20 ml of Co(NO 3 ) 2 Aqueous solution, Co(NO 3 ) 2 The concentration is 0.025mol / L, and transferred to a 50 ml stainless steel autoclave with polytetrafluoroethylene as the liner. Will pre-cleaned 10 x 10mm 2 The nickel foam base is placed horizontally on the bottom of the polytetrafluoroethylene liner. The autoclave was sealed and hydrothermally reacted at a temperature of 160° C. for 24 hours. The product is cooled, separated, washed and dried from the reaction liquid. Co produced 3 o 4 Nanoparticle thin films are used as anode materials, together with nickel foam substrates, for direct application in Na-ion batteries.

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Abstract

The invention discloses a preparation method of a metal compound nano-structure thin-film material. The method comprises the following steps: preparing a solution from a strong acidic-weak basic metal salt with hydrolysis ability; putting the solution into a metal substrate which is cleaned in advance; and inducing continuous hydrolysis reaction of metal ions through the metal substrate at a hydrolysis reaction temperature of the metal ions to prepare a multi-metal compound nano-structure thin-film material. The thin-film material can be taken as an electrode material directly or through thermal treatment. According to the preparation method of the metal compound nano-structure thin-film material, a nano-structure thin film can efficiently grow on the surface of the metal substrate through continuous directional self-assembly; the synthesis technology is simple; any strong acid, strong alkali or strong oxidant does not need to be used in the reaction process; the method is environment-friendly; the reaction condition range is wide and the applicable object range is wide; isometric amplification is easy to implement; and a large scale is easy to implement.

Description

technical field [0001] The invention relates to the technical field of inorganic functional nanometer materials, in particular to a method for preparing a metal compound nanostructure film material. Background technique [0002] With the development of the electronics industry and the social needs of energy crisis and green environmental protection, the demand for portable power supply devices for various devices is becoming more and more urgent. Research in energy storage and conversion devices focuses on the improvement of electrode materials. One of the ways to improve is to solve the problems of poor conductivity and volume expansion of most electrode materials by preparing nanomaterials into ordered nanostructure films. From the perspective of the electrode manufacturing process, the thin-film structural material greatly simplifies the complex process of using conductive agents, binders, and electrode material active substances to mix and coat the electrode sheets. Th...

Claims

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Application Information

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IPC IPC(8): H01M4/48H01M4/525H01M10/054H01M10/0525H01G11/46H01G11/30B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00H01G11/30H01G11/46H01M4/48H01M4/525H01M10/0525H01M10/054Y02E60/10
Inventor 张颖朦沈培康朱金良
Owner GUANGXI UNIV
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