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Preparation method of cerium oxide nano particles

A technology of ruthenium dioxide and manganese dioxide, applied in chemical instruments and methods, nanotechnology, nanotechnology, etc., can solve the problems of differences in the electrochemical performance of ruthenium oxide, achieve high redox reversibility, reduce the use of raw materials, and achieve huge The effect of applying the foreground

Inactive Publication Date: 2019-05-31
信阳学院
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Problems solved by technology

The electrochemical properties of ruthenium oxide prepared by different methods are different

Method used

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  • Preparation method of cerium oxide nano particles
  • Preparation method of cerium oxide nano particles

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Experimental program
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Effect test

Embodiment 1

[0019] A kind of ruthenium dioxide, its morphology is observed by scanning electron microscope and transmission electron microscope, and its microscopic morphology is observed to be completely consistent with the morphology of ruthenium oxide mentioned in related literature.

[0020] From figure 1 The scanning electron microscope photo of ruthenium dioxide can be seen, and ruthenium dioxide is granular micro-morphology under the scale bar of 30 micrometers; From figure 2 The XRD characterization chart shows the characteristic peaks of ruthenium dioxide.

Embodiment 2

[0022] The present invention also provides a kind of preparation method of ruthenium dioxide, comprises the following steps:

[0023] Step S1: Rucl 3 ·3H 2 O prepares a solution, and uses the solution as a solution precursor for the hydrothermal reaction; step S2: the solution is transferred to the lining of the reactor for hydrothermal reaction.

[0024] Preferably, in the step S1, the preparation of the solution has the following data: Rucl 3 ·3H 2 The quality of O is 1 gram, and the solvent is 50 milliliters of pure water.

[0025] Preferably, in the step S1, it is characterized in that: the solution configured according to the ratio needs to be subjected to ultrasound for 30 minutes and magnetic stirring for 3 hours.

[0026] Preferably, in the step S2, the hydrothermal reaction time is 12 hours, and the reaction temperature is 120°C. The obtained product is centrifuged and then placed in a drying oven to keep drying at 80° C. for more than 12 hours to obtain rutheniu...

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Abstract

The invention discloses a preparation method of cerium oxide nanoparticles. The method comprises preparation and characterization,the preparation process is to arrange a certain concentration of an aqueous solution by using RuCl3 3H2O, and a hydrothermal reactionis directly conducted to obtain cerium oxide; according to the characterization, the morphology of a sample obtained is characterized bySEM, and the composition of the sample is analyzed by XRD. Firstly, the preparation method of the cerium oxide is prepared by a hydrothermal method; secondly, using types of a medicament are adjusted,which greatly simplifies the experiment process and saves the use of medicines, thereby improving the experimental effect. The cerium oxide with good micro-morphology and high purity is obtained by the hydrothermal reaction. The method adopts the hydrothermal reaction method, the operation process is simple and easy to control, the use of the raw materials is greatly saved, the cost is reduced, and the obtained cerium oxide has ultra-high purity and good electrochemical properties.

Description

technical field [0001] The invention relates to a preparation method of ruthenium dioxide nanoparticles. Background technique [0002] The increasing scarcity of fossil energy resources and the deteriorating environment have resulted in various social problems. The development of renewable clean energy and the improvement of energy utilization are one of the effective ways to solve these problems. In the process of developing renewable clean energy and improving energy utilization, energy storage devices with low cost, environmental friendliness and high energy density are essential, which makes energy device technologies such as supercapacitors particularly important. In recent years, supercapacitors have received great attention from researchers due to their high power density and excellent cycle stability. The electrode material is a key factor affecting the performance of supercapacitors. [0003] Ruthenium dioxide has the advantages of ultra-high mass specific capacit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G55/00B82Y30/00
Inventor 高延利高永平董玉静
Owner 信阳学院