Copper complex ferroelectric functional material and preparation method thereof

A technology of ferroelectric functional materials and copper complexes, applied in the direction of copper organic compounds, etc., to achieve the effect of easy industrialization, low equipment requirements, and less process

Inactive Publication Date: 2013-02-13
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Judging from the current research status, the research, development and application of ferroelectric materials with high performance are still in the development stage.

Method used

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  • Copper complex ferroelectric functional material and preparation method thereof
  • Copper complex ferroelectric functional material and preparation method thereof
  • Copper complex ferroelectric functional material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Dissolve 0.1mol of m-nitrobenzoic acid in a mixed solvent composed of 0.5L deionized water and 0.5L ethanol, stir until completely dissolved, and obtain a m-nitrobenzoic acid solution for use; the copper ion is 0.05mol of CuCl 2 2H 2 O was dissolved in deionized water to form CuCl 2 solution, then dropwise add a sodium hydroxide solution with a concentration of 1mol / L until dark green (Cu(OH) 2 ·xH 2 O) The precipitate is completely precipitated, and the dark green precipitate is centrifuged and washed with distilled water for 5 times in total. The washed dark green precipitate is immediately added to the above-mentioned m-nitrobenzoic acid solution, and stirred for 5 to 40 minutes to obtain light blue Color copper m-nitrobenzoate suspension; then add 0.05mol o-phenanthroline, stir the light blue suspension into dark blue suspension, continue stirring for 20-40min, filter, precipitate and dry to obtain Dark blue powder crystal, the purity of the dark blue powder crys...

Embodiment 2

[0019] Substantially the same as Example 1, the only difference is that the molar weight of m-nitrobenzoic acid is 0.05mol, CuCl 2 2H 2 O is composed of copper ions as 0.025mol Cu(OAC) 2 ·H 2 O substitution, the molar weight of o-phenanthroline is 0.025mol.

Embodiment 3

[0021] Substantially the same as Example 1, except that the molar weight of m-nitrobenzoic acid is 0.08mol, CuCl 2 2H 2 O from CuSO with 0.04 mol of copper ions 4 ·5H 2 O substitution, the molar weight of o-phenanthroline is 0.04mol.

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Abstract

The invention discloses a copper complex ferroelectric functional material and a preparation method thereof. A molecular formula of a copper complex is [Cu(phen)(H2O)2L]L, wherein L is nitrobenzoic acid; phen is phenanthroline; the ferroelectric functional material is dark blue monoclinic powder crystals and belongs to a P21 space group crystal structure, and the purity is not less than 99 percent; a cell parameter of the ferroelectric functional material is that: beta is 97.75(3) degrees; and ferroelectric characteristic parameters of the ferroelectric functional material are respectively that: Ps is 0.218mu C/cm<2>, 2Pr is 0.189mu C/cm<2>, and 2Ec is 5.06kV/cm. The saturated polarization Ps of the ferroelectric functional material is 0.218mu C.cm<-2>. The preparation method for the copper complex has the advantages that the flow and the process are simple, equipment requirements are low, cheap copper salt, phenanthroline and nitrobenzoic acid are used as raw materials, the pollution is avoided, the cost is low, the industrialization is easy to realize, and the like.

Description

technical field [0001] The invention relates to a ferroelectric functional material, in particular to a copper complex ferroelectric functional material and a preparation method thereof. Background technique [0002] Ferroelectric functional materials (ferroelectrics) refer to a class of functional materials whose crystal structure has spontaneous polarization when no external electric field is applied, and the direction of spontaneous polarization can be reversed or reoriented by an external electric field. It has excellent ferroelectric, dielectric, pyroelectric and piezoelectric properties, so it is widely used in solid-state devices such as ferroelectric memory, infrared detectors, surface acoustic waves and integrated optoelectronic devices and other modern electronic technologies and micro-mechanical technologies. On the one hand, research on ferroelectric materials and their applications has become one of the hottest research topics in the fields of condensed matter p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F1/08
Inventor 郑岳青虞晓科朱红林许伟林建利
Owner NINGBO UNIV
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