Cobalt thiocyanate hydrogen bond type ferroelectric material, and preparation method and application thereof

A technology of thiocyanate cobalt hydrogen and ferroelectric materials, applied in organic chemistry methods, organic chemistry and other directions, can solve the problems of containing toxic metals, expensive preparation process, high energy consumption and the like

Active Publication Date: 2021-07-06
XINJIANG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a dabco-based thiocyanate cobalt hydrogen-bonded ferroelectric material and its preparation method and application, aiming to solve the problems of traditional inorganic ferroelectric materials that contain toxic metals, expensive preparation process, and high energy consumption. , and serious environmental pollution

Method used

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  • Cobalt thiocyanate hydrogen bond type ferroelectric material, and preparation method and application thereof
  • Cobalt thiocyanate hydrogen bond type ferroelectric material, and preparation method and application thereof
  • Cobalt thiocyanate hydrogen bond type ferroelectric material, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Add 0.04g dabco to 3.08g methanol to fully dissolve, then add dropwise 0.150mL (5 drops) of hydrochloric acid with a mass concentration of 36.5% (for protonating dabco) and stir well to obtain solvent 1; Cobalt chloride was added into 4.0g water to fully dissolve to obtain solvent 2; 0.24g potassium thiocyanate was added to 5.0g water to fully dissolve to obtain solvent 3;

[0039] (2) After mixing solvent 2 and solvent 3, add in solvent 1, obtain mixed solvent after fully mixing, the molar ratio of cobalt chloride, potassium rhodanide, dabco in this mixed solvent is 1:6:1; The beaker containing the above mixed solvent was placed on a magnetic stirrer and stirred for a certain period of time. Finally, the beaker was sealed with paper towels and rubber bands to prevent impurities from entering the beaker and affecting the normal growth of crystals. After 7 days in a clean environment, the precipitated The dark blue blocky crystals are cobalt thiocyanate hydrogen-bond...

Embodiment 2

[0041] (1) Add 0.03g dabco to 5.385g methanol to fully dissolve, then add dropwise 0.108mL of hydrochloric acid with a mass concentration of 37% (for protonating dabco) and stir fully to obtain solvent 1; add 0.069g cobalt chloride to Fully dissolved in 5.350g water to obtain solvent 2; 0.204g potassium thiocyanate was added to 5.563g water to fully dissolve to obtain solvent 3;

[0042](2) After mixing solvent 2 and solvent 3, add in solvent 1, obtain mixed solvent after fully mixing, the molar ratio of cobalt chloride, potassium thiocyanate, dabco in this mixed solvent is 1:5:2; The beaker containing the above mixed solvent was placed on a magnetic stirrer for a certain period of time, and finally the beaker was sealed with paper towels and rubber bands to prevent impurities from entering the beaker and affecting the normal growth of crystals. After 6 days in a clean environment, the precipitated The dark blue blocky crystals are cobalt thiocyanate hydrogen-bonding ferroelec...

Embodiment 3

[0044] (1) Add 0.07g dabco to 2.308g methanol to fully dissolve, then add dropwise 0.350mL of hydrochloric acid with a mass concentration of 36% (for protonating dabco) and stir fully to obtain solvent 1; add 0.107g cobalt chloride to Fully dissolve in 3.450g water to obtain solvent 2; add 0.267g potassium thiocyanate to 4.250g water and fully dissolve to obtain solvent 3;

[0045] (2) After mixing solvent 2 and solvent 3, add in solvent 1, obtain mixed solvent after fully mixing, the molar ratio of cobalt chloride, potassium rhodanide, dabco in this mixed solvent is 2:5:2; The beaker containing the above mixed solvent was placed on a magnetic stirrer for a certain period of time, and finally the beaker was sealed with paper towels and rubber bands to prevent impurities from entering the beaker and affecting the normal growth of crystals. After 8 days in a clean environment, the precipitated The dark blue blocky crystals are cobalt thiocyanate hydrogen-bonding ferroelectric ma...

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Abstract

The invention discloses a cobalt thiocyanate hydrogen bond type ferroelectric material, and a preparation method and application thereof. The preparation method comprises the following steps: adding dabco into methanol for fully dissolving, dropwise adding hydrochloric acid with the mass concentration of 36-37%, and fully stirring to obtain a solvent 1; adding cobalt chloride into water, and fully dissolving to obtain a solvent 2; adding potassium thiocyanate into water, and fully dissolving to obtain a solvent 3; uniformly mixing the solvent 2 and the solvent 3, adding the mixture into the solvent 1, and sufficiently mixing uniformly to obtain a mixed solvent, wherein the molar ratio of cobalt chloride to potassium thiocyanate to dabco in the mixed solvent is (1-2): (5-6): (1-2); and storing the mixed solvent in a clean environment for 6-8 days, wherein the precipitated dark blue blocky crystal is the cobalt thiocyanate hydrogen bond type ferroelectric material. The material structure is easy to regulate and control, has excellent electrical properties, and can be widely applied to the fields of ferroelectric memories, infrared detectors and the like; in addition, the preparation method disclosed by the invention has the advantages of low energy consumption, low cost and easiness in production, and is environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of material synthesis, and in particular relates to a dabco-based cobalt thiocyanate hydrogen-bonding ferroelectric material and a preparation method and application thereof. Background technique [0002] With the rapid development of science and technology, people's requirements for material conditions are increasing day by day, and the manufacture of emerging smart devices that are beneficial to life and work has become the public's hope. Due to their rich electrical, magnetic, mechanical, optical and thermal properties, ferroelectric phase change materials have long been widely used in the design of storage elements, capacitors, sensors, infrared detectors, etc. [0003] In recent years, crystal engineering based on metal-organic complexes has attracted more and more attention from scientific and technological personnel, and research has found that it has considerable application prospects in the field of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D487/08
CPCC07D487/08C07B2200/13
Inventor 刘洋刘尊奇徐慧婷
Owner XINJIANG AGRI UNIV
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