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Preparation method and application for composite film of copper, zinc, tin, sulphur and three-dimensional graphene

A technology of graphene film and copper zinc tin sulfur, which is applied in the field of nanomaterials, can solve the problems that the composite film cannot reach the quantum dot level and the preparation process is complicated.

Active Publication Date: 2017-06-13
GUANGDONG UNIV OF TECH
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Problems solved by technology

However, this technology only involves the composite of nanowires and graphene, and the preparation process is relatively complicated, and the composite film cannot reach the level of quantum dots

Method used

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  • Preparation method and application for composite film of copper, zinc, tin, sulphur and three-dimensional graphene
  • Preparation method and application for composite film of copper, zinc, tin, sulphur and three-dimensional graphene
  • Preparation method and application for composite film of copper, zinc, tin, sulphur and three-dimensional graphene

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Embodiment Construction

[0023] Step 1. Prepare a three-dimensional graphene film on a conductive substrate:

[0024] First, graphene oxide was prepared based on the ultrasonically improved Hummer method, which was reduced in a muffle furnace at a high temperature of 200-1000 °C. The mixture of redox graphene powder and ethanol solution was ball milled. The mass ratio of cobalt oxide ball milling beads to redox graphene powder is about 10000:1 to 2000:1, the speed is 200-400 rpm, and the ball milling time is 10-30h. Finally, the ball-milled graphene dispersion solution is suction-filtered and dried to obtain single-layer graphene powder.

[0025] Secondly, the single-layer graphene powder after ball milling is added into an organic solvent to prepare a graphene slurry, which is printed on the conductive surface of the FTO conductive glass by screen printing.

[0026] Finally, the above samples were placed in a blast drying oven for heat treatment to obtain a three-dimensional porous graphene film ba...

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Abstract

The invention relates to a preparation method and application for a composite film of copper, zinc, tin, sulphur and three-dimensional graphene. The preparation method is characterized by adapting the hydrothermal technology in inorganic synthesis to grow copper, zinc, tin and sulphur nanometer materials on the surface of a three-dimensional porous graphene film and in the porous space thereof and then preparing the composite film of copper, zinc, tin and sulphur nano-particles and three-dimensional graphene. According to the measurement experiment of morphology and electrochemistry, the composite film of copper, zinc, tin, sulphur and three-dimensional graphene has high specific surface area, high conductivity and high catalytic characteristic, and can be used as the photo anode materials of dye-sensitized solar cells.

Description

technical field [0001] The invention relates to a method in the technical field of nanomaterials, specifically a preparation method and application of a composite film of copper, zinc, tin, sulfur and three-dimensional graphene. Background technique [0002] Nanocomposites can concentrate the excellent properties of individual materials. Based on this idea, the rational design of the structure and morphology of materials has an important impact on the performance and application of nanomaterials. More importantly, the uniform distribution of nanomaterials is important for other materials. It is of great significance in the fields of energy environment such as solar cells, photocatalysis, supercapacitors, etc., so the control and synthesis of nanocomposite materials are getting more and more attention. [0003] Copper zinc tin sulfur (abbreviated as CZTS) nanoparticles have many advantages, such as: the light absorption coefficient exceeds 10 4 cm -1 , the band gap is about...

Claims

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Application Information

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IPC IPC(8): H01B1/04H01B1/06H01B5/00H01B13/00H01G9/20B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00H01B1/04H01B1/06H01B5/00H01B13/00H01G9/2045H01G9/2054Y02E10/542Y02P70/50
Inventor 招瑜庞洲骏魏爱香李京波刘俊肖志明温如春陈镇海
Owner GUANGDONG UNIV OF TECH
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