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Preparation method of metal nano plate or metal/high polymer composite nano plate

A metal nanometer and polymer technology, applied in electrolysis process, electroforming and other directions, can solve the problem of difficult control of nanosheet thickness, and achieve the effect of good industrial application prospect, uniform structure and mild preparation conditions.

Inactive Publication Date: 2010-06-02
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the process is simple, the thickness of the nanosheets is difficult to control

Method used

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  • Preparation method of metal nano plate or metal/high polymer composite nano plate
  • Preparation method of metal nano plate or metal/high polymer composite nano plate
  • Preparation method of metal nano plate or metal/high polymer composite nano plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1. Electrode preparation: Polish the pure copper sheet (or pure nickel sheet), and wash it with acetone, ethanol and deionized water in sequence, and obtain a substrate with a clean and smooth surface after drying.

[0022] 2. Preparation of lamellar liquid crystal: the concentration is respectively 0.005mol / L, 0.05mol / L, 0.1mol / L, 0.3mol / L copper sulfate (or nickel sulfate) solution, and sodium lauryl sulfate and benzyl alcohol Mixed, the prepared mass fractions were SDS / BA / H 2 Two lamellar liquid crystal systems of O=60 / 40 / 31.0 and 60 / 40 / 25.3.

[0023] 3. Conduct constant voltage electrodeposition in two layered liquid crystal systems respectively, and control the current density at 1.0-5.0A / dm 3 , deposition time 24h, the product is characterized as copper (or nickel) nanosheets, such as figure 1 So not.

[0024] The thickness of the copper (or nickel) nanosheet is 10-20nm, and the thickness is uniform.

Embodiment 2

[0026] 1. Preparation of conductive substrate: Polish pure platinum sheet (purity ≥ 99.95%) with diamond sandpaper, and wash with acetone, ethanol and deionized water successively, and obtain a substrate with a clean and smooth surface after drying.

[0027] 2. Preparation of lamellar liquid crystals: replace water with acidic aniline solutions with concentrations of 0.05mol / l, 0.1mol / l, and 0.3mol / l respectively, and prepare SDS / BA with sodium lauryl sulfate and benzyl alcohol respectively. / H 2 Two lamellar liquid crystal systems of O=60 / 40 / 31.0 and 60 / 40 / 25.3.

[0028] 3. Conduct constant voltage electrodeposition in two layered liquid crystal systems respectively, and control the current density at 1.0-5.0A / dm 3 , deposition time 24h, the product is characterized as polyaniline nanosheets, such as figure 2 shown.

[0029] The thickness of the platinum / polyaniline nanosheet is 15nm-35nm, and the thickness is uniform.

Embodiment 3

[0031] 1. Preparation of conductive substrate: Polish pure platinum sheet (purity ≥ 99.95%) with diamond sandpaper, and wash with acetone, ethanol and deionized water successively, and obtain a substrate with a clean and smooth surface after drying.

[0032] 2. Preparation of lamellar liquid crystals: replace water with a mixed solution containing 0.05-0.3mol / l aniline and 0.005-0.3mol / l copper sulfate (or nickel), and prepare the quality with sodium lauryl sulfate and benzyl alcohol respectively for SDS / BA / H 2 O=60 / 40 / 31.0 and 60 / 40 / 25.3 lamellar liquid crystal system.

[0033] 3. Conduct constant voltage electrodeposition in two layered liquid crystal systems respectively, and control the current density at 1.0-5.0A / dm 3 , deposition time 24h, the product is characterized as polyaniline / nickel composite nanosheets, such as image 3 shown.

[0034] The thickness of the polyaniline / nickel composite nanosheet is 10-30nm, and the thickness is uniform.

[0035] In addition, m...

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Abstract

The invention relates to a preparation method of nano plate, in particular to a preparation method of metal nano plate or metal / high polymer composite nano plate. In laminated liquid crystal having laminated nano water layer and laminated nano oil layer of even thickness, the electro-deposition process is adopted to prepare the metal nano plate or metal / high polymer composite nano plate of even thickness. The invention utilizes the structure of laminated liquid crystal having laminated nano water layer and laminated nano oil layer of even thickness simultaneously to restrict the dispersion of reactants, the position of electro-deposition and the growth orientation of electro-deposit to generate the nano plate, so that the nano plate has even thickenss and is uneasy to agglomerate. The preparation is simple in process, low in cost, fast in speed, even in structure and high in universality, the appearance, thickness, size and the like of the nano plate can be conveniently controlled by adjusting the structure of laminated liquid crystal.

Description

technical field [0001] The invention relates to a preparation method of nanosheets, in particular to the technical field of electrodeposition preparation of metal nanosheets and metal / high polymer composite nanosheets. Background technique [0002] Due to their special physical and chemical properties, metal nanosheets and metal / polymer composite nanosheets can be used as electrochemical sensors, fuel cells, high-efficiency catalysts, conductive pastes, high-conductivity alloys, high-specific-strength alloys, and solid lubricants, etc. , the preparation of metal nanosheets and metal / polymer composite nanosheets with excellent performance has important theoretical significance and practical value, and has broad application prospects in functional materials, instrumentation devices, and chemical engineering. [0003] The existing patented technologies for the preparation of metal nanosheets and metal / polymer composite nanosheets at home and abroad include: [0004] Hydrotherm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D1/04
Inventor 刘天晴丁欢欢
Owner YANGZHOU UNIV
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