Process for preparing shape controllable cuprous oxide micro/nano crystal by electrochemical deposition

A nanocrystal, cuprous oxide technology, applied in chemical instruments and methods, crystal growth, single crystal growth and other directions, can solve the problems of affecting product purity, inconvenient cleaning, etc., and achieves strong operability, high reaction efficiency, and good reliability. control effect

Inactive Publication Date: 2006-07-26
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its addition also brings inconvenience to the cleaning of the final product and affects the purity of the product.

Method used

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  • Process for preparing shape controllable cuprous oxide micro/nano crystal by electrochemical deposition
  • Process for preparing shape controllable cuprous oxide micro/nano crystal by electrochemical deposition
  • Process for preparing shape controllable cuprous oxide micro/nano crystal by electrochemical deposition

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Experimental program
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Effect test

Embodiment 1

[0023] 1) After grinding and polishing, the glassy carbon electrode was ultrasonically cleaned with ultrapure water for more than 1 h, and then dried naturally to obtain a clean, smooth and bright electrode.

[0024] 2) Prepare CuSO with a concentration of 50mM 4 Pour an appropriate amount of electrolyte solution into the electrolytic cell, ultrasonicate for 20 minutes to eliminate dissolved oxygen, and cool naturally to room temperature.

[0025] 3) After the potentiostat is preheated, select the constant current test method and set the main reaction parameters: the cathode current is 0.005A, and the deposition time is 30s. Afterwards, the three electrodes were respectively connected to the corresponding connection wires of the potentiostat, and the electrodeposition reaction was started at the same time.

[0026] 4) Disconnect the circuit after the reaction, carefully take out the glassy carbon electrode with tweezers, wash it with ultrapure water, put it face up on the fil...

Embodiment 2

[0029] Prepare CuSO at a concentration of 10mM 4 Electrolyte, all the other preparation methods are the same as embodiment 1, and the product is characterized by SEM (see figure 1b), the typical shape is the structure of cut-off regular octahedron, the average particle size is 250nm, the cut-off angle is 50nm, and the size is uniform and the distribution is uniform. It can be seen from the enlarged SEM image that the surface is smooth and flat.

Embodiment 3

[0031] Prepare CuSO at a concentration of 2mM 4 Electrolyte, all the other preparation methods are the same as embodiment 1, and the product is characterized by SEM (see figure 1 c), the typical shape is a chamfered cubic structure, the average particle size is 170nm, the chamfered angle is 60nm, and the size is uniform and the distribution is uniform. It can be seen from the enlarged SEM image that the surface is smooth and flat.

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Abstract

The invention discloses a shape-controlled cuprous oxide micron / nanometer crystal preparing method with electrochemical deposition, which comprises the following steps: pre-processing conductive basal body; formulating electrolyte solution; carrying on constant current electrochemical deposition; gaining Cu2O micron / nanometer crystal. The method is characterized by the following: the cuprous oxide micron / nanometer crystal is gained by changing density of electrolyte solution and electrochemical parameter by constant current electrodeposition method at room temperature, which needn't any supporting electrolytes and surface activators; the form is composed of octahedron, top rake octahedron, top rake cube and cube.

Description

technical field [0001] The present invention relates to a cuprous oxide crystal, in particular to a Cu with controllable shape of μm or nanometer scale prepared by electrochemical deposition. 2 O crystal method. Background technique [0002] Compared with corresponding macromolecules or isolated atoms and molecules, nanomaterials have unique chemical and physical properties, and their thermodynamic, kinetic, mechanical, optical, electrical, magnetic and chemical properties are also significantly different. These properties depend not only on size, but also on morphology and spatial arrangement. With the rapid development of industry and the in-depth research on nanomaterials and structures, the requirements for the miniaturization of electronic devices and photonic devices are gradually increasing, and the importance of targeted design and development of nanomaterials with controllable surface structures has become increasingly prominent. Nanomaterials with controllable su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/00C30B29/16C30B29/60
Inventor 张淑红马艳芸谢兆雄郑兰荪
Owner XIAMEN UNIV
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