Method for synthesizing organic molecular interlayer titanium disulfide compound

A technology of titanium disulfide and organic molecules, which is applied in the fields of titanium compounds, chemical instruments and methods, and inorganic chemistry, can solve problems such as the report of no organic molecular interlayer TiS2 synthesis method, achieve simple and rapid methods, reduce thermal conductivity, improve The effect of thermoelectric properties

Inactive Publication Date: 2012-07-11
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, to the best of our knowledge, there are no reports on organic

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  • Method for synthesizing organic molecular interlayer titanium disulfide compound
  • Method for synthesizing organic molecular interlayer titanium disulfide compound
  • Method for synthesizing organic molecular interlayer titanium disulfide compound

Examples

Experimental program
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Embodiment 1

[0021] Embodiment 1: a kind of synthetic method of organic molecular interlayer titanium disulfide compound, is characterized in that: comprise the following steps:

[0022] (1) First synthesize the pure phase compound titanium disulfide TiS 2 , grind it into powder and set aside;

[0023] (2) preparing an organic matter solution whose molar concentration is 0.01-0.1mol / L, whose volume is 80%-90% of the capacity of the autoclave liner, for subsequent use;

[0024] (3) Weigh 2-3 grams of TiS 2 Add the powder into the 30-40ml solution in step (2), and stir well;

[0025] (4) Add the solution of step (3) into the inner tank of the autoclave, seal it and put it into an oven, keep it warm at 120-150°C, and the processing time is about 24 hours;

[0026] (5) Washing, filtering, and drying the solution in step (4) to obtain an organic molecular interlayer titanium disulfide compound.

[0027] The synthesis method of the organic molecular interlayer titanium disulfide compound is ...

Embodiment 2

[0030] Example 2: Interlayer TiS of urea molecules 2 Compound Synthesis Method

[0031] 1) First synthesize the pure phase compound TiS 2 , and grind it into a uniform powder;

[0032] 2) Prepare a urea solution (volume of 35ml-40ml) with a certain molar concentration (in this example we take three concentrations of 12.5, 25, and 50mmol / L respectively);

[0033] 3) Weigh 3 grams of TiS2 powder into step 2) solution, and fully stir;

[0034] 4) Add the solution of step 3) into the inner tank of the autoclave, the pressure is greater than 3 atmospheres, seal it and put it in an oven, keep it warm at 120°C, and process it in a low-temperature and high-pressure synthesis environment for 24 hours;

[0035] 5) Wash the solution in step 4) several times, filter, and dry to obtain the organic molecular interlayer titanium disulfide compound.

[0036] 6) The XRD diffraction pattern of the synthetic compound and the thermal conductivity of the synthetic sample are as follows: figur...

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Abstract

The invention discloses a method for synthesizing an organic molecular interlayer titanium disulfide compound. The method comprises the following steps of: synthesizing a pure-phase compound TiS2, grinding into powder, and preparing an organic matter solution at a certain molar concentration; weighing a proper amount of TiS2 powder, and adding the powder into the organic matter solution; and stirring fully, adding the solution into an inner container of a high-pressure autoclave, sealing, putting into a drying oven, keeping the temperature of between 120 and 150 DEG C, washing for multiple times, filtering and drying to obtain the organic molecular interlayer titanium disulfide compound. By the method, the heat conductivity of the TiS2 is reduced effectively, and a simple and quick method for improving the thermoelectric performance of the TiS2 is provided.

Description

technical field [0001] The invention belongs to the technical field of preparation of layered compounds, and in particular relates to a synthesis method of an organic molecular interlayer titanium disulfide compound. Background technique [0002] Titanium disulfide (TiS2) is a typical transition metal dichalcogenide, the symmetric space group is P3ml, it usually exists in two structures (1T and 2H) of octahedron and triangular prism, the main difference between these two structures is the metal atom The difference in coordination mode: 1T-TiS 2 is an octahedral coordination structure, and 2H-TiS 2 It is a triangular prism structure. Among them, 1T-TiS is the most stable 2 With hexagonal close-packed CdI 2 structure, the hexagonal basal plane is highly anisotropic perpendicular to the basal plane; the adjacent six S atoms in the layer form an octahedron, and Ti is located in the center of the octahedron, forming a TiS 6 Octahedrons, which are covalently bonded; form a "s...

Claims

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Application Information

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IPC IPC(8): C01G23/00
Inventor 张建秦晓英辛红星宋春军郭广磊
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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