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Novel catalyst based on metal organic framework material and preparation method and application of novel catalyst

A metal-organic framework and catalyst technology, applied in organic compound/hydride/coordination complex catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problem of poor conductivity of MOF, limited applications, and no MXene- The application of MOF composite materials and other issues to achieve good oxygen evolution performance, short reaction time, and good oxygen reduction performance

Inactive Publication Date: 2017-04-26
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most MOFs are poorly conductive, which limits their applications in these fields
[0006] There is no MXene-MOF composite material prepared by hydrothermal method and in situ growth method and its application in the field of catalysis

Method used

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  • Novel catalyst based on metal organic framework material and preparation method and application of novel catalyst
  • Novel catalyst based on metal organic framework material and preparation method and application of novel catalyst
  • Novel catalyst based on metal organic framework material and preparation method and application of novel catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 1. Add 5g Ti 3 AlC 2 Dissolve in 30ml of ethanol, ball mill at 450r / min for 4h, filter the suspension with suction, and dry the product on the filter cake at 50°C for 12h. The dried product was sieved (160 mesh sieve).

[0041] 2. Take 180mg of Ti after ball milling and sieving 3 AlC 2 , 600mg of 1,4-naphthalene dicarboxylic acid, 3mL of hydrofluoric acid and 60mL of water are added to a hydrothermal kettle with 150mL of polytetrafluoroethylene as the liner at the same time. Under heating for 6h. After the reaction was completed, it was left to cool naturally at room temperature. The black solid obtained by the reaction was separated by centrifugation (washed three times with DMF) to obtain accordion-shaped Ti 3 C 2 Nanosheets.

[0042] 3. the above-mentioned obtained Ti 3 C 2 Ultrasound for 8h to further open Ti 3 C 2 lamellae, resulting in few-layered Ti 3 C 2 Nanosheets.

[0043] 4. Add 10mg Ti 3 C 2 Nanosheets were dissolved with 50 mg cobalt acetat...

Embodiment 2

[0054] 1. Add 5g Ti 3 AlC 2 Dissolve in 30ml of ethanol, ball mill at 450r / min for 4h, filter the suspension with suction, and dry the product on the filter cake at 50°C for 12h. The dried product was sieved (160 mesh sieve).

[0055] 2. Take 180mg of Ti after ball milling and sieving 3 AlC 2 , 600mg of 1,4-terephthalic acid, 3mL of hydrofluoric acid and 60mL of water are added to a hydrothermal kettle with 150mL of polytetrafluoroethylene as the liner at the same time. Heating at ℃ for 8h. After the reaction was completed, it was left to cool naturally at room temperature. The black solid obtained by the reaction was separated by centrifugation (washed three times with DMF) to obtain accordion-shaped Ti 3 C 2 Nanosheets.

[0056] 3. the above-mentioned obtained Ti 3 C 2 Ultrasonic 2h, further will open Ti 3 C 2 lamellae, resulting in few-layered Ti 3 C 2 Nanosheets.

[0057] 4. Add 2mg Ti 3 C 2 Nanosheets were dissolved with 50 mg cobalt acetate tetrahydrate ...

Embodiment 3

[0060] 1. Add 5g Ti 3 AlC 2 Dissolve in 30ml of ethanol, ball mill at 450r / min for 4h, filter the suspension with suction, and dry the product on the filter cake at 50°C for 12h. The dried product was sieved (160 mesh sieve).

[0061] 2. Take 180mg of Ti after ball milling and sieving 3 AlC 2 , 600mg of 1,4-naphthalene dicarboxylic acid, 3mL of hydrofluoric acid and 60mL of water are added to a hydrothermal kettle with 150mL of polytetrafluoroethylene as the liner at the same time. Under heating for 12 hours. After the reaction was completed, it was left to cool naturally at room temperature. The black solid obtained by the reaction was separated by centrifugation (washed three times with DMF) to obtain accordion-shaped Ti 3 C 2 Nanosheets.

[0062] 3. the above-mentioned obtained Ti 3 C 2 Ultrasonic 4h, further will open Ti 3 C 2 lamellae, resulting in few-layered Ti 3 C 2 Nanosheets.

[0063] 4. Add 5mg Ti 3 C 2 Nanosheets were dissolved with 50 mg cobalt acet...

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Abstract

The invention relates to a novel catalyst based on metal organic framework material and a preparation method and application of the novel catalyst, and belongs to the technical fieldo f functional nanomaterial preparation. Ti3AlC2 is taken as a raw material, Ti3AlC2 obtained after ball-milling and screening is corroded with an acid solution, an Al atom layer is removed, and a two-dimensional Ti3C2 nanosheet is generated; the Ti3C2 nanosheet, cobalt acetate tetrahydrate and 1,4-terephthalic acid are taken as precursors, cobalt acetate tetrahydrate and 1,4-terephthalic acid generate a metal organic framework complex (MOF)-cobalt terephthalic acid complex (CoBDC) on the surface of Ti3C2 through an in-situ growth method respectively, the two complexes are compounded, the metal organic framework complex (MOF)-cobalt terephthalic acid complex (CoBDC) and Ti3C2 are compounded, and then a compound Ti3C2-CoBDC of the product titanium carbide-cobalt terephthalic acid complex is obtained. The method is easy and convenient to operate in preparation, safe in preparation operation, short in production cycle, low in production cost, high in yield, basically free of by-products and beneficial for a achieving expanded production and has a very good application prospect.

Description

technical field [0001] The invention relates to the technical field of preparation of functional nanomaterials, in particular to a novel catalyst based on a metal organic framework material and its preparation method and application. Background technique [0002] With the depletion of fossil fuels, energy issues and environmental crises have become prominent social issues. It is of great research significance to find efficient and clean alternative energy sources. Electrochemical energy has attracted more and more attention because of its clean, efficient and other characteristics. Oxygen reduction reaction and oxygen evolution reaction are the core parts of electrochemical reactions. Platinum, ruthenium, rhodium, iridium and their complexes are commonly used noble metal bifunctional catalysts, which have high catalytic performance, strong carbon deposition resistance and good stability, but due to their high price and low storage capacity, it is necessary to look for alte...

Claims

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Application Information

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IPC IPC(8): B01J31/38
CPCB01J31/38B01J35/33
Inventor 黄晓黄维赵丽李绍周
Owner NANJING UNIV OF TECH
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