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Method for laser synthesis of cobaltosic oxide nano particles

A nano-laser synthesis technology of cobalt trioxide, which is applied in the direction of cobalt oxide/cobalt hydroxide, etc., can solve the problems affecting the development and application of zinc-air battery technology, poor catalytic stability, and scarce reserves, etc., and achieve abundant output, simple method, and easy operation Effect

Inactive Publication Date: 2017-08-15
TIANJIN UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to focus on the precious metal platinum carbon and ruthenium dioxide which are scarce in reserves, expensive and poor in catalytic stability, which greatly affects the zinc-air battery technology. development and application issues

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  • Method for laser synthesis of cobaltosic oxide nano particles
  • Method for laser synthesis of cobaltosic oxide nano particles
  • Method for laser synthesis of cobaltosic oxide nano particles

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0025] Such as figure 1 As shown in the diagram of the synthesis device, the beaker is best placed 10-20 cm below the reflector, so that the output of the product is relatively large and the utilization rate of the laser is maximized.

[0026] Specific steps are as follows:

[0027] (1) Using a cobalt metal target with a purity of 99.99% as a raw material, first gently polish the surface of the target with sandpaper to remove the oxide layer on the surface, and then wash off the oil on the surface with detergent;

[0028] Then wash the surface of the cobalt metal target with deionized water and ethanol in turn to remove residual impurities, and then dry the surface of the cobalt metal target for use;

[0029] (2) Put the cobalt metal target dried in step (1) into a 100ml beaker, then add deionized water, the liquid level of the deionized water is 5 cm highe...

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Abstract

The invention discloses a method laser synthesis of cobaltosic oxide nano particles. According to the invention, a cobalt metal target material is taken as a raw material, the surface of the target material is cleaned and dried, then the target material is placed in a beaker, deionized water is added; a nanosecond pulse laser is turned on, the cobalt metal target material is burned; after laser effecting, a solution in the beaker is taken out, the solution is subjected to centrifugal enrichment, then is placed in a refrigerator for refrigeration and solidification, the solution is placed in a vacuum freeze drier, and the cobaltosic oxide nano particles through laser synthesis can be obtained. The cobaltosic oxide nano particles have high specific surface area and abundant oxygen vacancy, has zinc air battery performance which exceeds that of commercial precious metals platinum carbon and ruthenium dioxide under normal-temperature normal-pressure and common synthesis environment, synthesis process is simple, control is easy, the nano-material output is abundant, cost is low, no toxic raw material is used, and the method has large application prospect.

Description

technical field [0001] The present invention relates to a zinc-air battery, in particular to a method for preparing a cobalt trioxide nanomaterial that can improve the performance of the zinc-air battery by using nanosecond laser ablation of a cobalt metal target in a liquid phase to laser synthesize a metal oxide. Background technique [0002] Since human society entered the industrial society, various industrial technologies have developed rapidly. With the development of the world economy, human demand for energy is increasing day by day, but the reserves of non-renewable energy such as oil, natural gas, and coal on the earth are very limited. Yes, in recent years, energy shortages and energy crises have begun to emerge. Therefore, the energy problem is a major and urgent problem facing all mankind. It not only threatens the peace of the world, but also affects the lives of future generations of human beings. At the same time, with the continuous exploitation and utiliza...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G51/04
CPCC01G51/04C01P2002/72C01P2006/12C01P2006/40
Inventor 杜希文李喆董存库
Owner TIANJIN UNIV
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