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A kind of preparation method of metal simple substance intercalation layered double hydroxide interlayer porous material

A technology of double hydroxide and single metal, applied in the direction of metal/metal oxide/metal hydroxide catalyst, chemical instrument and method, organic compound/hydride/coordination complex catalyst, etc. Interconductivity, inhomogeneity, complex metal particles, etc.

Active Publication Date: 2020-08-14
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The methods currently used to improve electrical conductivity are to assemble graphene-double hydroxide stacked structures, external composite metal elements, etc., but these methods are relatively complex or the composite metal particles are not uniform and on the surface of layered materials, which cannot improve the layer. Conductivity between them and the absence of a porous structure that facilitates ion transport

Method used

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  • A kind of preparation method of metal simple substance intercalation layered double hydroxide interlayer porous material
  • A kind of preparation method of metal simple substance intercalation layered double hydroxide interlayer porous material
  • A kind of preparation method of metal simple substance intercalation layered double hydroxide interlayer porous material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] First weigh 0.1g CoAl-NO 3 Layered double hydroxide and 0.995g K[Ag(CN) 2 ], placed in 100ml solution (90ml ethanol and 10ml water), and then with N 2 Remove air and CO from solution 2 , followed by stirring for 18 hours. The obtained product was washed with pure water and ethanol, marked as CoAl-Ag(CN) 2 . Then weigh 0.1g CoAl-Ag(CN) 2 Add it into 45ml of ethylene glycol and 5ml of triethanolamine solution, and react at 150°C for 180 minutes.

Embodiment 2

[0040] Weigh 0.1g CoAl-NO 3 Layered double hydroxide and 0.995g K[Ag(CN) 2 ], placed in 100ml solution (90ml ethanol and 10ml water), and then with N 2 Remove air and CO from solution 2 , followed by stirring for 18 hours. The obtained product was washed with pure water and ethanol, marked as CoAl-Ag(CN) 2 . Then weigh 0.1g CoAl-Ag(CN) 2 Add it into 45ml of ethylene glycol and 5ml of triethanolamine solution, and react at 150°C for 30 minutes.

Embodiment 3

[0042] Weigh 0.1g CoAl-NO 3 Layered double hydroxide and 0.995g K[Ag(CN) 2 ], placed in 100ml solution (90ml ethanol and 10ml water), and then with N 2 Remove air and CO from solution 2 , followed by stirring for 18 hours. The obtained product was washed with pure water and ethanol, marked as CoAl-Ag(CN) 2 . Then weigh 0.1g CoAl-Ag(CN) 2 Add it into 45ml of ethylene glycol and 5ml of triethanolamine solution, and react at 150°C for 60 minutes.

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Abstract

The invention relates to a method for preparing a porous material in which a metal element is inserted into a layered double hydroxide layer. The method uses layered double hydroxide as an initial material and obtains a layered double hydroxide containing metal ion ligands through an anion exchange method. hydroxide; then, using ethylene glycol as the reducing agent and solvent, triethanolamine as the additive, and heating in an oil bath, a porous material in which a metal element was inserted between the layered double hydroxide layers was successfully obtained. The prepared metal element-inserted layered double hydroxide interlayer porous material has porosity, excellent electrical conductivity and electrocatalytic performance. The method for preparing materials has high yield and high reproducibility, and the raw materials used are cheap and abundant. Application of metal element inserted into layered double hydroxide interlayer porous materials in cathode materials and electrocatalysis in fuel cells.

Description

technical field [0001] The invention belongs to the technical field of material preparation, and in particular relates to a method for preparing a porous material interlayered with a metal element inserted into a layered double hydroxide layer. Background technique [0002] Energy issues are increasingly hindering the sustainable development of the current society. New fuel cells are expected to be widely used as clean energy to replace traditional high-pollution and non-renewable fossil fuels. But as the most important cathodic oxygen reduction reaction in fuel cells, its slow kinetic process has become the biggest obstacle to the application of fuel cells. At the same time, seeking cheap and abundant raw materials to replace noble metal platinum (Pt) as cathode catalytic materials has also received more and more attention. Layered double hydroxides are widely regarded as excellent electrocatalysts that can replace Pt or reduce the amount of Pt due to their unique structur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/89B01J31/28H01M4/90
CPCH01M4/90H01M4/9016H01M4/9041B01J23/8913B01J23/892B01J31/28B01J35/33Y02E60/50
Inventor 邓小龙徐锡金黄金昭张守伟
Owner UNIV OF JINAN