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Method for synthesizing nickel sulfide nanorods through solid-liquid phase reaction and prepared nanorods

A nickel sulfide and nanorod technology, applied in nickel sulfide, nanotechnology and other directions, can solve the problems of uneven product morphology and complex preparation process, and achieve the effects of short reaction time, simple reaction system and high yield

Inactive Publication Date: 2011-09-28
NANJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned NiS nanoparticles synthesized by the solution method, or the preparation process is relatively complicated, or the shape of the product is not uniform
There is no report on the method of synthesizing NiS by solid-liquid method

Method used

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  • Method for synthesizing nickel sulfide nanorods through solid-liquid phase reaction and prepared nanorods
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  • Method for synthesizing nickel sulfide nanorods through solid-liquid phase reaction and prepared nanorods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] In a clean 250 mL ground-necked three-neck flask, add 0.25 g Ni(acac) 2 Solid, 2.4 mL of n-dodecylmercaptan and 5 mL of octadecene were heated in a sand bath to 6 o C / min rate of heating up to 250 o C, after reacting for 45 min, cool down to room temperature naturally. To obtain a black solution, add n-heptane to disperse, then add ethanol to precipitate, centrifuge to separate the solid, remove the upper colored solvent, and obtain a black solid precipitate. The black precipitate was repeatedly washed 4-5 times with n-heptane and absolute ethanol, and then vacuum-dried at room temperature for 4 hours for analysis and characterization.

[0034] Its morphology and structure were observed with a transmission electron microscope (TEM) (Figure 1). The results showed that the obtained NiS was a rod-like nanostructure with an average diameter of 4 nm, a length of 27-50 nm, and an aspect ratio of 7-12.

[0035] Its composition and phase structure were analyzed by X-Ray pow...

Embodiment 2

[0038] In a clean 250 mL ground-necked three-neck flask, add 0.50 g Ni(acac) 2 The solid, 4.8 mL of n-dodecylmercaptan and 8 mL of octadecene were heated in a sand bath, and the temperature was raised to 250 °C at a rate of 6 °C / min. After reacting for 45 min, it was naturally cooled to room temperature. To obtain a black solution, add n-heptane to disperse, then add ethanol to precipitate, centrifuge to separate the solid, remove the upper colored solvent, and obtain a black solid precipitate. The black precipitate was repeatedly washed 4-5 times with n-heptane and absolute ethanol, and then vacuum-dried at room temperature for 4 hours for analysis and characterization.

[0039] The morphology and structure were observed with a transmission electron microscope (TEM). The results showed that most of the obtained NiS were rod-like nanostructures. The average diameter of the rods was 5 nm, the length was 30-70 nm, and the aspect ratio was 6-12.

[0040] XRD result is identical...

Embodiment 3

[0042] In a clean 250 mL ground-necked three-neck flask, add 0.25 g Ni(acac) 2 Solid, 4.8 mL of n-dodecylmercaptan and 8 mL of octadecene were heated in a sand bath to 6 o C / min rate of heating to 280 o C, after reacting for 30 min, cool down to room temperature naturally. To obtain a black solution, add n-heptane to disperse, then add ethanol to precipitate, centrifuge to separate the solid, remove the upper colored solvent, and obtain a black solid precipitate. The black precipitate was repeatedly washed 4-5 times with n-heptane and absolute ethanol, and then vacuum-dried at room temperature for 4 hours for analysis and characterization.

[0043] The morphology and structure of the obtained NiS were observed with a transmission electron microscope (TEM). The results showed that the obtained NiS part was a rod-like nanostructure with an average diameter of 5 nm, a length of 25-40 nm, and an aspect ratio of 5-8.

[0044] XRD result is identical with embodiment 1.

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Abstract

The invention discloses a method for synthesizing nickel sulfide nanorods through solid-liquid phase reaction and the prepared nickel sulfide nanorods. The method comprises the following steps of: heating a mixture of an acetylacetone nickel solid, alkyl sulfhydryl and octadecene to the temperature of between 250 and 340 DEG C in a dry reactor, keeping the temperature for 15 to 45 minutes, and separating to obtain target products, namely the nickel sulfide nanorods. The nickel sulfide nanorods have regular nanorod-like structures, the average diameter of 4 to 5nm, the length of 25 to 70nm and the length-diameter ratio of 4 to 12. The nickel sulfide nanorods with smaller sizes, uniform appearances and hexagonal phase structures are synthesized through the solid-liquid phase chemical reaction at a low temperature under normal pressure, the process is simple, reaction time is short, and the method is suitable for mass production.

Description

technical field [0001] The invention relates to a synthesis method of nickel sulfide nanorods and the prepared nickel sulfide nanorods, in particular to a method for preparing nickel sulfide nanorods by simple solid-liquid phase reaction, and the prepared uniform perfect rod Nickel sulfide nanorods with smaller morphology and size. Background technique [0002] One-dimensional nanostructures, such as nanowires, nanorods, nanoribbons, and nanotubes, have become a hotspot of in-depth research in the field of materials science due to the application of one-dimensional nanomaterials in mesoscopic physics and nano-device synthesis. The energy quantization effect and large aspect ratio of one-dimensional nanostructures have many unique properties, which can be used to construct a new generation of nanoscale integrated circuits and optoelectronic devices. For example, one-dimensional nanorods provide natural channels for directional electron transport, and the transport resistance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G53/11B82Y40/00
Inventor 包建春韩敏徐可戴志晖
Owner NANJING NORMAL UNIVERSITY
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