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Single-phase CuO nanosheet array film and preparation method thereof

A nanosheet array, nanosheet technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problem of unsatisfactory cycle stability of electrode materials, insufficient conversion to CuO, and complex process. and other problems, to achieve the effect of excellent visible light absorption characteristics, simple and easy method, stable and guaranteed performance

Active Publication Date: 2017-07-14
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the poor binding force, Cu(OH) 2 Insufficient conversion to CuO and other problems, the cycle stability as an electrode material is not ideal, and the process of this method is relatively complicated

Method used

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  • Single-phase CuO nanosheet array film and preparation method thereof
  • Single-phase CuO nanosheet array film and preparation method thereof
  • Single-phase CuO nanosheet array film and preparation method thereof

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Embodiment Construction

[0028] One-step method for preparing single-phase CuO nanosheet array film, the specific steps are as follows

[0029] (1) Pretreatment of high-purity copper mesh:

[0030] After cleaning the high-purity copper mesh repeatedly with alcohol and distilled water, soak it in RY-522 copper chemical polishing solution at room temperature for 30s, then take it out and wash it with distilled water, then neutralize it with 10g / L NaOH, clean it with distilled water ultrasonically and install it directly Hang into the slot.

[0031] (2) Preparation of CuO nanosheet array thin film by galvanostatic anodic oxidation method

[0032] Using 40g / L sodium hydroxide, 150g / L sodium chloride, 1g / L polyethylene glycol 20000, 20g / L (NH 4 ) 6 Mo 7 o 24 4H 2 The mixed solution of O is used as the electrolyte, the high-purity copper mesh after pretreatment is used as the anode, and the high-purity titanium sheet is used as the cathode (wherein, the effective area of ​​the high-purity titanium she...

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Abstract

The invention discloses a single-phase CuO nanosheet array film and a preparation method thereof. Copper oxide arrays vertical to a substrate and mutually arranged in a staggered manner grow on the surface of a high-purity copper material through an anodic oxidation process; the single-phase CuO nanosheet array film is obtained through adding (NH4)6Mo7O24.4H2O with a proper concentration in an electrolyte, the thicknesses of CuO nanosheets in the film are 10-30nm, and the lengths of the CuO nanosheets are 300-500nm; and the CuO nanosheets uniformly and compactly grow on the material of the substrate, and are in the shape of a nanoflower and firmly bonded with the material of the substrate. The prepared single-phase CuO nanofilm presents high specific capacitance characteristic and excellent cyclic stability; the preparation steps are simple and controllable; and the single-phase CuO nanofilm is a capacitance electrode material with an actual application value.

Description

technical field [0001] The invention relates to a single-phase CuO nanosheet array thin film and a preparation method thereof, belonging to the field of nanomaterial preparation and application. Background technique [0002] Metal oxide is an important material, which plays an important role in the field of catalysis, electrochemical energy storage, and photolysis of water. more excellent. [0003] Copper oxide (CuO) is a black oxide of copper and belongs to transition metal oxides. It has been used in oil desulfurization, antibacterial products, magnetic materials, refractory materials, anti-corrosion materials and other fields. Nano-copper oxide is also a typical p-type narrow-bandgap semiconductor material, which has attracted extensive attention in electrochemical sensors, solar cells, gas sensors, photocatalysis, and supercapacitors. There are many factors affecting the performance of nano oxides, including microscopic morphology, structure, specific surface area, etc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/34C25D7/00B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01P2002/72C25D7/00C25D11/34
Inventor 舒霞吴玉程王岩崔接武徐光青秦永强张勇
Owner HEFEI UNIV OF TECH
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