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MNx super crystal and preparing method and application thereof

A crystalline, super technology, applied in the preparation of sulfide/polysulfide, binary selenium/tellurium compounds, metal selenide/telluride, etc. problem, to achieve the effect of low preparation cost, uniform size and high yield

Active Publication Date: 2018-12-14
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention provides a MN x Super crystal and its preparation method and application

Method used

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  • MNx super crystal and preparing method and application thereof
  • MNx super crystal and preparing method and application thereof
  • MNx super crystal and preparing method and application thereof

Examples

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Embodiment 1

[0037] A kind of MN in this embodiment x The preparation method of the super crystal is as follows:

[0038] (1) Weigh 12 mmol of Sapamine A cationic surfactant, add 100 mL of n-butanol, and ultrasonically dissolve for 30 minutes to form a uniform oil phase solution;

[0039] (2) Weigh 0.8 mmol sodium molybdate, add 300 mL deionized water, and ultrasonically dissolve for 10 min to form a uniform and stable aqueous solution;

[0040] (3) With vigorous stirring at room temperature, add the sodium molybdate aqueous phase solution dropwise to the Sapamine A oil phase solution, stir vigorously for 2 h after adding the aqueous phase solution, and then add 50 mL of ethylene glycol dropwise to the mixed solution alcohol, stirred vigorously for 10 min, added 1 mL of hydrochloric acid dropwise to the mixed solution, stirred vigorously for 1 h, then added 6 mmol (0.4567 g) thiourea dropwise to the mixed solution, stirred vigorously for 3 h, until the solution was uniform, stable emulsi...

Embodiment 2

[0044] A kind of MN in this embodiment x The preparation method of the super crystal is as follows:

[0045] (1) Weigh 12 mmol of Ahcovel A cationic surfactant, add 100 mL of n-butanol, and ultrasonically dissolve for 30 minutes to form a uniform oil phase solution;

[0046] (2) Weigh 0.8 mmol sodium molybdate, add 300 mL deionized water, and ultrasonically dissolve for 10 min to form a uniform and stable aqueous solution;

[0047] (3) In the state of vigorous stirring at room temperature, the sodium molybdate aqueous phase solution was added dropwise to the Ahcovel A oil phase solution. After adding the aqueous phase solution, stirred vigorously for 2 h, and then added 50 mL of ethylene glycol dropwise to the mixed solution. Stir vigorously for 10 min, add 1 mL of hydrochloric acid dropwise to the mixed solution, and after stirring vigorously for 1 h, add 6 mmol (0.4567 g) thiourea dropwise to the mixed solution, stir vigorously for 3 h, until the solution forms a uniform, s...

Embodiment 3

[0051] A kind of MN in this embodiment x The preparation method of the super crystal is as follows:

[0052] (1) Weigh 12 mmol of CTAB cationic surfactant, add 100 mL of n-butanol, and ultrasonically dissolve for 30 min to form a uniform oil phase solution;

[0053] (2) Weigh 0.8 mmol sodium molybdate, add 300 mL deionized water, and ultrasonically dissolve for 10 min to form a uniform and stable aqueous solution;

[0054] (3) Under the state of vigorous stirring at room temperature, add the sodium molybdate aqueous phase solution dropwise to the CTAB oil phase solution, stir vigorously for 2 h after adding the aqueous phase solution, add 50 mL ethylene glycol dropwise to the mixed solution, and vigorously Stir for 10 min, add 0.09 mL hydrochloric acid dropwise to the mixed solution, stir vigorously for 1 h, add 6 mmol (0.4567 g) thiourea dropwise to the mixed solution, stir vigorously for 3 h, until the solution forms a uniform and stable emulsion ;

[0055] (4) Put the em...

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Abstract

The invention relates to an MNx super crystal and a preparing method and application thereof, belonging to the field of functional material structure control. The method includes subjecting an M salt,as a raw material, to a reaction in an autoclave at 120-260 DEG C in an acidic environment for one hour to one week to obtain the MNx super crystal material, with a mixture of alcohol and water beingadopted as a solvent and thiourea (selenourea) being adopted as a sulfur (selenium) source. The method and the super crystal are characterized in that hollow, solid or core-shell MNx super crystal sphere, sheet and butterfly-shaped materials having uniform particle size and adjustable composition can be obtained by self-assembling of a two-dimensional sheet material through adjusting the varietyof metal salts, the reaction temperature, reaction time, surfactants and the dosage of thiourea (selenourea). More importantly, semiconductor-phase (2H phase) and metal-phase (1T phase) MNx super crystal sphere and sheet materials can be selectively prepared through controlling reaction temperatures.

Description

technical field [0001] The present invention relates to a kind of MN x The super crystal and its preparation method and application belong to the field of structure control of functional materials. Background technique [0002] 2D nanomaterials, such as graphene and layered transition metal sulfides, have excellent optical, thermal, and electrical properties. Research centered on the regulation and tailoring of optical, thermal, and electrical properties of 2D materials will directly determine their applications in important fields such as energy storage, sensors, and catalysts. Among 2D materials, graphene has attracted much attention in recent years, but due to its lack of intrinsic band gap, the potential of chemical modification to adjust its band gap is also limited, and its application is thus limited. In contrast, graphene-like structured materials have attracted extensive attention due to their wide band gaps. in MoS 2 For example: the Nanoelectronics and Structu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B17/20C01B19/04
CPCC01B17/20C01B19/007C01P2002/72C01P2004/03C01P2004/61C01P2004/62
Inventor 李峰巩飞龙彭丽芳徐志强刘梦梦
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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