A kind of single-phase cuo nanosheet array film and preparation method thereof

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

Active Publication Date: 2018-12-21
HEFEI UNIV OF TECH
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  • Abstract
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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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  • A kind of single-phase cuo nanosheet array film and preparation method thereof
  • A kind of single-phase cuo nanosheet array film and preparation method thereof
  • A kind of single-phase cuo nanosheet array film and preparation method thereof

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Embodiment Construction

[0027] One-step method for preparing single-phase CuO nanosheet array film, the specific steps are as follows

[0028] (1) Pretreatment of high purity copper mesh:

[0029] After repeatedly cleaning the high-purity copper mesh with alcohol and distilled water, soak it in RY-522 copper chemical polishing solution for 30s at room temperature, then take it out and clean 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.

[0030] (2) Preparation of CuO nanosheet array film by constant current anodic oxidation method

[0031] 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 pretreated high-purity copper mesh is used as the anode, and the high-purity titanium sheet is used as the cathode. (The effective area of ​​the high-purity titanium sheet is 3 times the effective a...

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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 film and a preparation method thereof, and belongs to the field of nano material preparation and application. Background technique [0002] Metal oxide is an important material, and it plays an important role in the field of catalysis, electrochemical energy storage, and photolysis of water. After the metal oxide is nano-sized, its catalytic performance, supercapacitor characteristics, hydrogen production performance, etc. More excellent. [0003] Copper oxide (CuO) is a black oxide of copper, belonging to transition metal oxides, and has been used in the fields of oil desulfurization, antibacterial products, magnetic materials, refractory materials, and anticorrosive materials. Nano-copper oxide is also a typical p-type narrow band gap semiconductor material, which has gained wide attention in electrochemical sensors, solar cells, gas sensors, photocatalysis, and super capacitors. There are many f...

Claims

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Application Information

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Patent Type & Authority Patents(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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