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A kind of synthesis method of sns crystal with letter c shape

A synthesis method and letter technology, applied in chemical instruments and methods, tin compounds, inorganic chemistry, etc., to achieve the effects of easy popularization and application, low production cost and uniform morphology

Inactive Publication Date: 2018-01-16
NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the methods currently used are oil-phase methods, so often need to use a lot of toxic organic solvents
Hydrothermal method, as a method using water as the reaction medium, is applied to the synthesis of various inorganic semiconductor nanomaterials. So far, many SnS nano / micro crystals with special morphology have been synthesized by domestic and foreign scientists, but There are no literature reports on SnS crystals with the shape of the letter C

Method used

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  • A kind of synthesis method of sns crystal with letter c shape
  • A kind of synthesis method of sns crystal with letter c shape
  • A kind of synthesis method of sns crystal with letter c shape

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preparation example Construction

[0021] A kind of synthetic method with the SnS crystal of letter C shape, comprises the following steps:

[0022] Step 1, dissolving a tin-containing precursor, a sulfur-containing precursor and a surfactant in water to prepare a solution, the surfactant being polypyrrolidone (PVP);

[0023] Step 2. Transfer the solution prepared in Step 1 to a reaction kettle and heat it. After the reaction is complete, centrifuge and wash the sample with water and alcohol to obtain a SnS crystal in the shape of a letter C.

[0024] Wherein, in step 1, the tin-containing precursor is tin dichloride, tin tetrachloride or stannous sulfate; the sulfur-containing precursor is thiourea, thioacetamide, sodium sulfide, cysteine ​​or reduced glutathione peptide.

[0025] The molar ratio of the tin-containing precursor to the sulfur-containing precursor is 1:1 to 1:12; the molar ratio of the tin-containing precursor to the surfactant is 1:0.1 to 1:2.

[0026] In step 2, the reaction temperature is 1...

Embodiment 1

[0029] Step 1, 1mmol tin dichloride, 1mmol thioacetamide, 0.1 mmol polypyrrolidone (PVP) are dissolved in 80ml water to obtain a solution;

[0030] Step 2. Transfer the solution prepared in step 1 to a reactor for heating, control the reaction temperature to 150° C., react for 1 hour, centrifuge, wash the sample with water and alcohol, and obtain SnS crystals in the shape of letter C.

Embodiment 2

[0032] Step 1, 1mmol tin tetrachloride, 10mmol cysteine, 0.5mmol polypyrrolidone (PVP) were dissolved in 80ml water to obtain a solution;

[0033] Step 2: transfer the solution prepared in step 1 to a reactor for heating, control the reaction temperature to 180°C, react for 6 hours, centrifuge, wash the sample with water and alcohol, and obtain a SnS crystal in the shape of letter C.

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Abstract

The invention discloses a synthesis method of SnS crystals shaped like a letter C. The synthesis method comprises the following steps that 1, a tin-containing precursor, a sulfur-containing precursor and a surfactant are dissolved into water to prepare a solution, wherein the surfactant is polypyrrolidone; 2, the solution prepared in the step 1 is transferred into a reaction kettle and heated, after full reacting is conducted, centrifuging is conducted, samples are washed with water and alcohol, and the SnS crystals shaped like the letter C are prepared. The synthesis method has the advantages that a technology is simple, the production cost is low, and the prepared SnS crystals shaped like the letter C are uniform in morphology, suitable for being used for directly preparing a lithium battery electrode material and a solar cell and easy to apply and popularize.

Description

technical field [0001] The invention relates to the technical field of nanomaterials, in particular to a method for synthesizing SnS crystals in the shape of a letter C. Background technique [0002] SnS is the material of choice for solar energy conversion due to its nearly ideal bandgap width, and the abundant Sn and S reserves on the earth, which are cheap, efficient, and non-toxic. [0003] The preparation of ultrathin semiconductor nanosheets by solution method is one of the most important research frontiers in material science, and a lot of research has been done at home and abroad. However, most of the methods currently used are oil-phase methods, so a lot of toxic organic solvents are often used. Hydrothermal method, as a method using water as the reaction medium, is applied to the synthesis of various inorganic semiconductor nanomaterials. So far, many SnS nano / micro crystals with special morphology have been synthesized by domestic and foreign scientists, but The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G19/00
CPCC01G19/00C01P2002/72C01P2004/03
Inventor 陈飞顾李明毛红雷
Owner NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG