A method for preparing nanomaterials by electrodeposition of enhanced micro-electrolysis technology

Abstract

The invention discloses a method for preparing nanometer materials through electric deposition by the reinforced micro electrolysis technology, which belongs to the technical field of nanometer material preparation. The method is characterized in that micro electrolysis fillings consisting of an active anode and an inert cathode are placed into a reinforced micro electrolysis reactor, in addition, deposition liquid water solution is fed into the micro electrolysis reactor, metal ions in the deposition liquid are reduced into metal elementary substance on the surface of the fillings under the reinforcing effect of an external electric field after the reinforced micro electrolysis deposition reaction, the goal of controlling the micro electrolysis reaction process is reached through controlling the field intensity of the external electric field, different field intensities of the external electric field have different promotion and reinforcing effect on the micro electrolysis, the uniformity degrees and the nanometer degrees of the electric deposition particles are also different, and the nanometer materials conforming to the requirements of specific dimension, ingredients and the like are finally prepared. The method has the advantages that the particle diameter of the nanometer materials is controllable, the energy consumption is low, the reaction condition is mild, the operation is simple and convenient, and the like.

Description

technical field [0001] The invention relates to a method for preparing nanomaterials, in particular to a method for preparing nanomaterials by electrodeposition using enhanced micro-electrolysis technology, and belongs to the technical field of nanomaterial preparation. Background technique [0002] Nanomaterials are a new type of material science developed in the 1980s. Compared with ordinary materials, nanomaterials have special magnetic and optical properties due to their small size effects, surface and interface effects, quantum size effects, and macroscopic quantum tunneling effects. , Mechanics, electricity, and chemical catalytic properties, thus becoming one of the most attractive and popular researches in the field of materials in the 21st century. [0003] There are various preparation methods of nanomaterials, which are divided into solid-phase method, liquid-phase method and gas-phase method from the perspective of raw materials, and divided into physical and che...

AI Technical Summary

Problems solved by technology

[0004] Conventional electrodeposition techniques include direct current electrodeposition, pulse electrodeposition, and spray electrodeposition. These electrodeposition techniques can obtain nanomaterials of a specific size under certain conditions, but this type of electrodeposition process requires power consumption, which inevitably makes materials The preparation cost is high, how to reduce energy consumption and thus reduce the cost of material preparation will become a research hotspot. Since the deposition process of micro-electrolytic electrodeposited metal does not need to consume electric energy, it can achieve the purpose of reducing the cost of material preparation, which has opened up a new way for the preparation of nanomaterials. The route of this method uses active anode particles and inert cathode particles to form micro-electrolytic fillers, and a galvanic corrosion reaction occurs between the micro-electrolytic fillers in the deposition solution, so that the active anode is dissolved, and the metal ions to be deposited are electrodeposited on the surface of the inert cathode. Finally, the preparation of the material is completed on the surface of the inert cathode, but the driving force of the reaction of the micro-electrolytic electrodeposition technology comes from the voltage and current generated by the corrosion of the primary battery, and the metal particles produced by electrodeposition are limited by the voltage and current. Micron level), can not achieve the purpose of preparing nanomaterials

[0005] In view of the large particle size of the material prepared by the above micro-electrolytic electrodeposition technology, how to effectively solve the above-mentioned disadvantages by improving and improving the technology or developing a joint technology while maintaining the advantages of the micro-electrolytic electrodeposition technology, so as to obtain a material that meets certain requirements. The particle size requirements of nanomaterials have become an important technical issue