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A kind of preparation method and application of amorphous metal oxide induced nico-btc nanosheet

An amorphous metal and nanosheet technology, applied in active material electrodes, electrochemical generators, structural parts, etc., can solve problems such as difficult synthesis, achieve low cost, improve electrochemical lithium storage performance, and facilitate diffusion.

Active Publication Date: 2022-04-22
HEFEI UNIV OF TECH
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Problems solved by technology

Especially for alloy flake metal organic framework materials, its synthesis is more difficult

Method used

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  • A kind of preparation method and application of amorphous metal oxide induced nico-btc nanosheet
  • A kind of preparation method and application of amorphous metal oxide induced nico-btc nanosheet
  • A kind of preparation method and application of amorphous metal oxide induced nico-btc nanosheet

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Embodiment 1

[0028] A method for preparing NiCo-BTC nanosheets induced by amorphous metal oxides, specifically comprising the following steps:

[0029] S1. Dissolve 0.4 mmol of nickel nitrate and 3.6 mmol of cobalt nitrate in 50 mL of deionized water to form solution A.

[0030] S2, 5mmol sodium borohydride is dissolved in 20mL of deionized water to form solution B, in solution B, the concentration of sodium borohydride is 250mmol L -1 .

[0031] S3. Add solution B to solution A, stir for 5 minutes to obtain a suspension, centrifuge the product, wash it alternately with water and ethanol three times, and dry it at room temperature to obtain amorphous metal oxide nanosheets (10Ni90Co- ONs) powder.

[0032] S4. Disperse 20 mg of amorphous metal oxide nanosheet powder in 20 mL of N, N-dimethylformamide to form a suspension C, then place it in a water bath at 90 degrees Celsius for stirring, and perform constant temperature treatment for subsequent use; In suspension C, amorphous metal oxid...

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Abstract

The invention discloses a method for preparing NiCo-BTC nanosheets induced by amorphous metal oxides and its application. Cobalt nitrate, nickel nitrate, sodium borohydride, etc. are used as raw materials to prepare amorphous metal oxide nanosheet powder (NiCo BTC ‑ONs), and then dispersed in N, N‑dimethylformamide, and adding a mixed solution of trimesic acid and N, N‑dimethylformamide, through centrifugation, ethanol washing, drying and other steps, and finally Metal-organic framework (MOF) NiCo‑BTC nanosheet powder was prepared. The invention relates to a method for preparing metal-organic framework NiCo-BTC nanosheets. The prepared metal-organic framework nanosheets can be directly used as negative electrode materials for high-performance lithium-ion batteries. The preparation method is mild, safe and pollution-free, and simple and easy to operate. The cost is low, which is conducive to further improving the electrochemical lithium storage performance of the material.

Description

technical field [0001] The invention relates to the technical field of synthesis of low-dimensional nanomaterials, in particular to a method for preparing NiCo-BTC nanosheets induced by amorphous metal oxides and its application. Background technique [0002] Metal-organic frameworks (MOFs), also known as metal-organic coordination polymers, have emerged as a new class of functionalized crystalline materials. Metal frame materials can be divided into one-dimensional line, two-dimensional sheet and three-dimensional space network structure in terms of spatial dimension extension. The biggest feature of metal organic framework material is that it is a crystalline material with ultra-high porosity and huge internal specific surface area. Structures composed of different components of metal ions and organic ligands make their structures diverse and adjustable. These all play a key role in its application. For example, it is used in the separation and storage of gases, carrier...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00H01M4/60H01M10/0525
CPCC08G83/008H01M4/602H01M10/0525H01M2004/027Y02E60/10
Inventor 崔接武曹中南吴玉程余东波郑红梅王岩余翠平张勇
Owner HEFEI UNIV OF TECH
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