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Phenanthroline copper malonate ferroelectric functional material and preparation method thereof

A technology of roline malonate copper and ferroelectric functional materials, applied in the direction of copper organic compounds, etc., to achieve the effects of low equipment requirements, easy industrialization, and simple 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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  • Phenanthroline copper malonate ferroelectric functional material and preparation method thereof
  • Phenanthroline copper malonate ferroelectric functional material and preparation method thereof
  • Phenanthroline copper malonate ferroelectric functional material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 0.4 moles of copper perchlorate are dissolved in 1 liter of deionized water to prepare a copper perchlorate solution with a molar concentration of 0.4 mol / L for use; 0.2 moles of malonic acid are added to 1 liter of deionized water and stirred until Dissolve completely, make a malonic acid solution with a molar concentration of 0.2mol / L, add it to the copper perchlorate solution, mix well, and obtain a light blue copper malonate solution; dissolve 0.4 mole o-phenanthroline in 1 liter of ethanol In the solution, prepare a solution of o-phenanthroline with a molar concentration of 0.4mol / L, add it to the light blue copper malonate solution and mix evenly, until a blue suspension is formed, filter to remove insoluble matter, and leave the filtrate at room temperature After a few days, the precipitation of the dark blue crystals was completed, and the dark blue crystals were ground into powders passing through a 100-mesh sieve to obtain a ferroelectric functional material of...

Embodiment 2

[0018] It is basically the same as Example 1, except that 0.2 mole of copper perchlorate is dissolved in 1 liter of deionized water, 0.1 mole of malonic acid is added into 1 liter of deionized water, and 0.2 mole of phenanthroline is dissolved in 1 liter of ethanol.

Embodiment 3

[0020] It is basically the same as Example 1, except that 0.6 mole of copper perchlorate is dissolved in 1 liter of deionized water, 0.3 mole of malonic acid is added into 1 liter of deionized water, and 0.6 mole of phenanthroline is dissolved in 1 liter of ethanol.

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Abstract

The invention discloses a phenanthroline copper malonate ferroelectric functional material with a molecular formula of [Cu2(phen)2(H2O)3(mal)(ClO4)](ClO4). Phen is phenanthroline; mal is malonic acid; the ferroelectric functional material is blue powder and belongs to a P21 space group crystal structure; cell parameters of the ferroelectric functional material are shown in the specification; and ferroelectric characteristic parameters of the ferroelectric functional material are respectively that: the saturated polarization Ps is 0.25mu C.cm<-2>, the remanent polarization 2Pr is 0.20mu C.cm<-2>, and a coercive electric field value 2Ec is 3.59kv.cm<-1>. The material is a metal-organic complex which is constructed by using a flexible malonic acid organic ligand, Cu<2+> ions, perchlorate ions and phenanthroline, and has good ferroelctric characteristics, and the saturated polarization is equivalent to that of Rochelle salt. The ferroelectric functional material is prepared by mixing a copperperchlorate hydrate solution and a malonic acid solution, and then mixing the mixed solution and a phenanthroline solution; and the flow and the process are simple, and equipment requirements are low.

Description

technical field [0001] The invention relates to a ferroelectric functional material, in particular to a copper o-phenanthroline malonate ferroelectric functional material and a preparation method thereof. Background technique [0002] Ferroelectric functional materials 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 ...

Claims

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Application Information

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IPC IPC(8): C07F1/08
Inventor 郑岳青金陵许伟朱红林林建利
Owner NINGBO UNIV
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