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Process for preparing ruthenium sulfide nanopartical

A technology of ruthenium sulfide and nanospheres, applied in chemical instruments and methods, inorganic chemistry, ruthenium/rhodium/palladium/osmium/iridium/platinum compounds, etc., can solve the problem of amorphous ruthenium sulfide nanoparticles that have not yet been seen and other problems to achieve the effect of uniform size, high purity and regular shape

Inactive Publication Date: 2007-07-11
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no report on the preparation of ruthenium sulfide nanoparticles and related amorphous ruthenium sulfide nanospheres by using polyol as a reducing agent under ultrasonic radiation.

Method used

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  • Process for preparing ruthenium sulfide nanopartical
  • Process for preparing ruthenium sulfide nanopartical

Examples

Experimental program
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Effect test

Embodiment 1

[0012] Example 1. Preparation of amorphous ruthenium sulfide nanospheres and crystalline ruthenium sulfide nanoparticles

[0013] In a 100ml beaker, 0.03g hydrated ruthenium trichloride and 0.03g thioacetamide are dissolved in a solution of 60ml polyethylene glycol 200, that is, the ratio of the amount of hydrated ruthenium trichloride and thioacetamide is about 1:4, the concentration of hydrated ruthenium trichloride is about 1.7mmol / L, the mixture is placed in ultrasonic radiation with a power of 300W and a frequency of 20KHz, and a sonochemical reaction is carried out at room temperature and normal pressure for 1.5 hours. The sonochemical reaction is carried out by directly inserting the ultrasonic probe into the reactant solution. During the reaction process, the temperature of the reactants will rise due to no cooling device. After the reaction, a gray-black precipitate formed. After cooling to room temperature, centrifugation (10000 revolutions / min, 5 min) was performed, and...

Embodiment 2

[0014] Example 2. Preparation of amorphous ruthenium sulfide nanospheres and crystalline ruthenium sulfide nanoparticles

[0015] In a 100ml beaker, 0.03g of ruthenium trichloride hydrate and 0.03g of thioacetamide were dissolved in a solution of 60ml of polyethylene glycol 200, and the mixture was placed in ultrasonic radiation with a power of 300W and a frequency of 20KHz at room temperature. The sonochemical reaction was carried out under pressure for 2 hours, and the other conditions of the preparation were the same as in Example 1. About 0.02 grams of products with similar size and morphology were also obtained.

Embodiment 3

[0016] Example 3. Preparation of amorphous ruthenium sulfide nanospheres and crystalline ruthenium sulfide nanoparticles

[0017] In a 100ml beaker, 0.03g of ruthenium trichloride hydrate and 0.03g of thioacetamide were dissolved in a solution of 60ml of polyethylene glycol 200, and the mixture was placed in ultrasonic radiation with a power of 300W and a frequency of 20KHz at room temperature. The sonochemical reaction was carried out under pressure for 2.5 hours, and the other preparation conditions were the same as in Example 1. About 0.02 grams of products with similar size and morphology were also obtained.

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Abstract

A process for preparing the ruthenium sulfide nanoparticles in the form of sphere or crystal includes such steps as proportionally dissolving hydrated RuCl3 and thioacetylamine in polyethanediol 2000, ultrasonic chemical reaction, cooling, centrifugal separation, washing deposit, drying in air to obtain amorphous ruthenium sulfide nanospheres, and calcining at 600-800 deg.C for 2-4 hr in N2 to obtain its nanocrystals.

Description

1. Technical Field [0001] The invention relates to a method for preparing ruthenium sulfide nanoparticles under ultrasonic radiation. 2. Background technology [0002] Transition metal chalcogenides have attracted widespread attention in the scientific community because of their importance in technical applications. They are usually used as photocatalytic materials, catalysts for hydrodesulfurization processes, solid lubricants, cathode materials for high energy density batteries, etc. . In recent years, transition metal chalcogenide nanoparticles have a large surface-to-volume ratio, high activity, unique optoelectronic properties, and a very small three-dimensional structure, which has aroused the great research enthusiasm of scientists. Among the transition metal chalcogenides, ruthenium sulfide has quickly become one of the most potential active materials. It has a series of special properties and has a wide range of applications in many fields. For example, it is one of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G55/00
Inventor 张剑荣陈娟赵亮朱俊杰
Owner NANJING UNIV