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Process for synthesizing polycrystal lattice laminal compound

A technology of layered compounds and synthesis methods, applied in chemical instruments and methods, polycrystalline material growth, single crystal growth, etc., to achieve the effect of design synthesis and easy operation

Inactive Publication Date: 2008-08-27
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This synthesis method overcomes the shortcoming that the high-temperature solid-phase method can only synthesize complex crystalline compounds with a limited range, and can design and synthesize complex crystalline compounds with more diverse compositions and structures, providing important technical support for the development and application of such complex crystalline compounds

Method used

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  • Process for synthesizing polycrystal lattice laminal compound
  • Process for synthesizing polycrystal lattice laminal compound
  • Process for synthesizing polycrystal lattice laminal compound

Examples

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Embodiment 1

[0023] Embodiment 1: the synthesis of polylattice nickel niobium oxide hydroxide

[0024] Take 1mmol of K 4 Nb 6 o 17 Perform proton exchange in 40ml of 1M HCl, add the exchanged product to 30ml of water containing 5mmol of n-propylamine, and after hydrothermal treatment in an oven at 120°C for 1 day, add 4mmol of NiCl 2 Wash the resulting precipitate with deionized water to PH=6-10, put it into a reaction kettle, use water as the reaction medium, and put it in an oven at 160°C for 3 days. The solid powder X-ray diffraction spectrum is shown in the figure 1.

Embodiment 2

[0025] Example 2: Synthesis of polylattice nickel titanium niobium oxide hydroxide

[0026] 1mmol of KTiNbO 5 Perform proton exchange in 10ml of 1M HCl, add the exchanged product to 30ml of water containing 1.5mmol of n-propylamine, put it in a 100°C oven for hydrothermal treatment for 1 day, and then add 1mmol of NiCl 2 , wash the generated precipitate with deionized water to PH=6-10, put it into a reaction kettle, use water as the reaction medium, and put it in an oven at 260 ° C for 1 day. The solid powder X-ray diffraction spectrum is shown in Figure 2 Show.

[0027]Use tetramethylamine hydroxide, tetraethylamine hydroxide, tetrabutylamine hydroxide, tri-n-propylamine, n-butylamine, ethylamine, methylamine, n-pentylamine, n-hexylamine, cyclohexylamine and other organic amines instead of n-propylamine , the same product can also be obtained.

Embodiment 3

[0028] Embodiment 3: Synthesis of polylattice nickel zirconium lanthanum niobium oxide hydroxide

[0029] 1mmol of KLaNb 2 o 7 Perform proton exchange in 10ml of 0.5M HCl, add the exchanged product to 30ml of water containing 1mmol n-butylamine, put it in a 120°C oven for hydrothermal treatment for 12 hours, then add 0.5mmol of NiCl 2 and 0.5 mmol of ZrOCl 2 , wash the generated precipitate with deionized water to PH=6-10, put it into a reaction kettle, use water as the reaction medium, and put it in an oven at 160°C for 3 days. The solid powder X-ray diffraction spectrum is shown in Figure 3 Show.

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Abstract

The invention relates to a method for synthesizing multiple crystal lattice layered compound, which belongs to the crystal compound synthesizing method technical field, the method comprises the following steps: taking the layered compound as a precursor, inserting component compounds, carrying out the hydrothermal method or the dissolvent hot reaction, or carrying out the layer stripping treatment to the layered compound, inserting component compounds and forming deposition, and then carrying out the hydrothermal method or the dissolvent hot reaction, or carrying out the ion exchange by adding the layered compound into ion solution with component compounds, adding precipitating agents, and then carrying out the hydrothermal method or the dissolvent hot reaction. The synthesizing method of the invention is completely different from the existing high temperature solidoid method, and not only has mild conditions, but also can realize design synthesis, the synthesized compound can have multiple functions and properties, and multiple function devices can be designed and the integration of the function devices can be realized by utilizing the materials.

Description

technical field [0001] The invention belongs to the technical field of crystal compound synthesis methods, in particular to a method for synthesizing multi-lattice layered compounds using layered compounds as precursors. Background technique [0002] Multi-lattice layered compound is a complex crystalline compound, there are two or more secondary lattices in the crystal of this type of compound, and these secondary lattices do not match in one-dimensional and two-dimensional directions , each lattice has its own set of cell parameters. In 1988, when people were studying chalcogenides, they first realized double-lattice mismatched layered compounds. Since then, a large number of such compounds have been synthesized, and the understanding of their structures has continued to deepen. Such chalcogenides can be represented by the general formula [(MX) n ] x (TX 2 ) m , where M=Sn, Pb, Bi, rare earth elements, etc.; X=S, Se, etc.; n=1, 3 / 2, 2; the value of x is between 1.08 a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/68C30B7/10
Inventor 徐跃华冯守华
Owner JILIN UNIV
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