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Method for preparing nano nickel selenide with octahedral structure

A technology of nano-selenium and octahedron, which is applied in the preparation of novel structure nickel selenide nanomaterials, in the field of nano-nickel selenide, can solve the problems of nickel selenide not reported or applied for patents, etc., and achieve high catalytic activity effect

Inactive Publication Date: 2012-07-18
ANHUI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To sum up, there is still little research on the synthesis and application of nickel selenide, and the synthesis of octahedral nickel selenide has not been reported or patented.

Method used

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  • Method for preparing nano nickel selenide with octahedral structure
  • Method for preparing nano nickel selenide with octahedral structure
  • Method for preparing nano nickel selenide with octahedral structure

Examples

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Effect test

Embodiment 1

[0022] Embodiment 1: Prepare the nano-nickel selenide of octahedral structure under different conditions:

[0023] This step is the condition exploration stage for preparing the product octahedral nano-nickel selenide. (1) Add 0.1314 grams of nickel sulfate hexahydrate and 0.0866 grams of sodium selenite to 25 milliliters of autoclaves with polytetrafluoroethylene linings, then add 20 milliliters of ethylene glycol, stir for 20 minutes, and seal the reaction Put the kettle into a digital display temperature-controlled furnace, and react at 160, 180, and 200 degrees Celsius for 24 hours. (2) Add 0.1455 grams of nickel sulfate hexahydrate and 0.0866 grams of sodium selenite to 25 milliliters of autoclaves with Teflon linings, then add 20 milliliters of ethylene glycol, stir for 20 minutes, and seal the reaction The kettle was put into a digital display temperature-controlled furnace, and reacted at 180 degrees Celsius for 24 and 36 hours, respectively. (3) 0.1117 gram of nicke...

Embodiment 2

[0029] Embodiment 2: Preparation of nickel selenide nanosheets:

[0030] Add 0.1314 gram of nickel sulfate hexahydrate and 0.0866 gram of sodium selenite to 25 milliliters of autoclaves with polytetrafluoroethylene liners, then add 20 milliliters of ethylene glycol, stir for 20 minutes, close the reaction vessel, and put Put it into a digital display temperature-controlled furnace, and react at 180 degrees Celsius for 24 hours. The obtained product was washed with distilled water and ethanol several times and then dried for characterization and testing.

[0031] The phase of the sample was characterized by Philips X Pert PRO SUPER X-ray diffractometer (XRD), the morphology of the sample was characterized by the Hitachi scanning microscope S4800 in Japan, and the catalytic properties of the hydrazine hydrate decomposition of the sample were tested by Shimadzu-3600 .

[0032] Figure 4 , Figure 5 It is an electronic scanning photo of the product of this example, showing tha...

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Abstract

The invention provides a method for preparing nano nickel selenide with an octahedral structure, and belongs to the technical field of preparation of nano materials. The method is characterized by comprising the following steps of: adding 0.1314 gram of nickel sulfate hexahydrate and 0.0866 gram of sodium selenite into a 25-milliliter high-pressure reaction kettle with a polytetrafluoroethylene lining, adding 20 milliliters of ethylene glycol, stirring for 20 minutes, closing the reaction kettle, putting into a digital display temperature control furnace, and reacting for 24 hours at the temperature of 180 DEG C; and performing three times of centrifugal washing on the obtained sample, drying, and thus obtaining the product. An organic template and a surfactant are not required in the method, and the nano nickel selenide is synthesized in one step and has high yield and the octahedral structure; the method is simple, energy-saving and suitable for industrialized production; and the obtained octahedral nickel selenide has a good catalytic effect on decomposition of hydrazine hydrate.

Description

Technical field: [0001] The invention belongs to the technical field of nanometer material preparation, and in particular relates to a method for preparing nanometer nickel selenide with an octahedral structure by a solvothermal method—a kind of preparation method of a nickel selenide nanometer material with a novel structure. Background technique: [0002] Existing methods for preparing nickel selenide nanostructure materials include chemical vapor deposition, chemical bath deposition, hydrothermal method, solvothermal method and the like. [0003] "Journal of the American Chemical Society" (Journal of the American Chemical Society, 2008, volume 130, pages 2420-2421) reported that by decomposing the single-source precursor Ni[ i PR 2 P(S)NP(Se) i PR 2 ] 2 Heterostructured Ni was deposited at different temperatures by chemical vapor deposition 0.85 Se and Ni 2 p. Holland Elsevier "Alloys and Compounds Journal" (Journa1 of Alloys and Compounds, 2010, volume 490, pages ...

Claims

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Application Information

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IPC IPC(8): C01B19/04B82Y40/00
CPCY02P20/10
Inventor 宋吉明赵京凤刘程成张胜义牛和林毛昌杰王夏昆王娇
Owner ANHUI UNIVERSITY
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