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Ferrocene-based ultrathin metal organic framework nano-sheets and preparation method thereof

An ultra-thin metal, organic framework technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve problems such as low yield, uncontrollable nanosheet morphology, and achieve stable chemical properties. , Simple and efficient preparation, simple and efficient method

Active Publication Date: 2019-01-01
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can obtain nanosheets, the yield is low, and the morphology of nanosheets cannot be controlled.

Method used

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  • Ferrocene-based ultrathin metal organic framework nano-sheets and preparation method thereof
  • Ferrocene-based ultrathin metal organic framework nano-sheets and preparation method thereof
  • Ferrocene-based ultrathin metal organic framework nano-sheets and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] In a 25mL polytetrafluoroethylene liner, add 1,1'-ferrocenedicarboxylic acid (13.7mg, 0.05mmol), zirconium tetrachloride (116.6mg, 0.5mmol) and acetic acid (1.43mL, 25mmol), N,N-Dimethylformamide (15 mL) was added to dissolve it completely. Put the lining into the hydrothermal reaction kettle and react at 120°C for 12h. After the reaction was finished, a precipitate was obtained after centrifugation (3000 rpm, 30 min). The precipitate was washed three times with N,N-dimethylformamide (3x30mL), and then ultrasonically dispersed (30min) with ethanol (30mL) to obtain ferrocene-based ultrathin metal organic framework nanosheets.

Embodiment 2

[0037] In a 25mL polytetrafluoroethylene liner, add 1,1'-ferrocenedicarboxylic acid (137.0mg, 0.5mmol), zirconium tetrachloride (116.6mg, 0.5mmol) and acetic acid (1.43mL, 25mmol), N,N-Dimethylformamide (15 mL) was added to dissolve it completely. Put the lining into the hydrothermal reaction kettle and react at 120°C for 12h. After the reaction was finished, a precipitate was obtained after centrifugation (3000 rpm, 30 min). The precipitate was washed three times with N,N-dimethylformamide (3x30mL), and then ultrasonically dispersed (30min) with ethanol (30mL) to obtain ferrocene-based ultrathin metal organic framework nanosheets.

[0038] The experimental test results are as follows:

[0039] Such as figure 1 Shown is the scanning electron microscope image of the prepared ultra-thin metal-organic framework nanosheets. It can be seen from the figure that the lateral size of the ultra-thin metal-organic framework nanosheets is about 500nm;

[0040] Such as figure 2 Shown...

Embodiment 3

[0044] In a 25mL polytetrafluoroethylene liner, add 1,1'-ferrocenedicarboxylic acid (685.0mg, 2.5mmol), zirconium tetrachloride (116.6mg, 0.5mmol) and acetic acid (1.43mL, 25mmol), N,N-Dimethylformamide (15 mL) was added to dissolve it completely. Put the lining into the hydrothermal reaction kettle and react at 120°C for 12h. After the reaction was finished, a precipitate was obtained after centrifugation (3000 rpm, 30 min). The precipitate was washed three times with N,N-dimethylformamide (3x30mL), and then ultrasonically dispersed (30min) with ethanol (30mL) to obtain ferrocene-based ultrathin metal organic framework nanosheets.

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Abstract

The invention discloses ferrocene-based ultrathin metal organic framework nano-sheets and a preparation method thereof, wherein the ferrocene-based ultrathin metal organic framework nano-sheets are prepared from an organic ligand 1,1'-ferrocene dicarboxylic acid, a metal salt zirconium tetrachloride and a modulating agent acid. According to the present invention, the preparation method is simple,the obtained ferrocene-based ultrathin metal organic framework nano-sheets have characteristics of porous structure and stable chemical property, and the thickness and the horizontal size of the obtained ferrocene-based ultrathin metal organic framework nano-sheets can be adjusted through the reaction conditions.

Description

technical field [0001] The invention belongs to the field of material chemistry and relates to an organic framework nanosheet and a preparation method thereof, in particular to a ferrocene-based ultra-thin metal organic framework nanosheet and a preparation method thereof. Background technique [0002] Metal-organic frameworks are a class of porous materials with a crystalline structure. Due to its high porosity, large specific surface area and adjustable structure, it has important applications in the fields of heterogeneous catalysis, gas storage and separation. [0003] Compared with bulky metal-organic frameworks, ultrathin metal-organic framework nanosheets have ultrathin thickness and large lateral dimensions. These characteristics make ultrathin metal-organic framework nanosheets have more exposed active sites, which have important advantages in gas separation and heterogeneous catalysis. [0004] At present, there are two main methods for preparing ultrathin metal-...

Claims

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Application Information

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IPC IPC(8): C08G83/00B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C08G83/008
Inventor 俞豪杰邓正王立
Owner ZHEJIANG UNIV
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