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Co-activation of a metal-organic framework material with noble metals and plasma co-activation 2 Method for preparing c1 organic products

A metal-organic framework and plasma technology, which is applied in the direction of catalyst activation/preparation, organic compound preparation, organic compound/hydride/coordination complex catalyst, etc., can solve problems that have not been seen before, and achieve improved CO2 adsorption and The effect of transforming and maintaining the skeleton structure

Active Publication Date: 2021-11-09
DALIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, judging from the existing reports, there is no MOF material with large pore structure, large specific surface area and high thermal stability as a carrier to prepare a supported noble metal catalyst and interact with atmospheric pressure plasma CO 2 Report on Selective Formation of C1 Organic Products

Method used

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  • Co-activation of a metal-organic framework material with noble metals and plasma co-activation <sub>2</sub> Method for preparing c1 organic products
  • Co-activation of a metal-organic framework material with noble metals and plasma co-activation <sub>2</sub> Method for preparing c1 organic products
  • Co-activation of a metal-organic framework material with noble metals and plasma co-activation <sub>2</sub> Method for preparing c1 organic products

Examples

Experimental program
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preparation example Construction

[0024] The preparation method of following Zr-MOF material: get 1.165g zirconium chloride (ZrCl 4 ), 0.831g terephthalic acid (C 8 h 6 o 4 ), 30mL DMF solution and 0.8ml concentrated HCl solution were fully stirred to dissipate heat, then moved to a homogeneous reaction kettle, and then put the reaction kettle into a constant temperature drying oven at 120°C for 24h and then naturally cooled to room temperature. Filtration, washing with DMF, washing with methanol, drying in a drying oven at 100°C for 6 hours, washing with acetone, and drying in a drying oven for 6 hours, the Zr ion metal organic framework material was obtained.

[0025] The following is the preparation method of Ru / Zr-MOF material: the concentration of 2.15mL is 0.0266g. ml -1 RuCl 3 The solution was added to 1 g of the Zr-MOF material, stirred, and allowed to stand at room temperature for 12 hours to obtain a 2% Ru / Zr-MOF material precursor. The 2% Ru / Zr-MOF material precursor was moved to an atmospheri...

Embodiment 1

[0027] Co-activation of CO by a metal-organic framework material loaded with noble metal and plasma 2The method for preparing C1 organic product, described method is that 0.3g above-mentioned 2%Ru / Zr-MOF material is joined in the coil type dielectric barrier plasma discharge reactor, feeds reaction gas (VH 2 :VCO 2 =4:1), adjust the peak-to-peak value of discharge voltage to 19.2kV, conduct CO 2 Hydrogenation conversion is used to prepare C1 organic products, and the reaction products are detected online by gas chromatography.

Embodiment 2

[0029] Co-activation of CO by a metal-organic framework material loaded with noble metal and plasma 2 The difference between the method for preparing the C1 organic product and Example 1 is that 0.2 g of Zr-MOF is used to replace 2% Ru / Zr-MOF in Example 1.

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Abstract

The invention relates to metal-organic framework materials loaded with noble metals and plasma to co-activate CO 2 Process for the preparation of C1 organic products, belonging to CO 2 Transformation and application fields. The method is to use the impregnation method to load the noble metal on the organic framework material, further add it to the cold plasma discharge reactor, feed the working gas, the gas pressure is atmospheric pressure, adjust the peak and peak value of the discharge voltage to 15-40kV, and reduce the noble metal . The reduced M / MOF was further added to an atmospheric pressure dielectric barrier plasma reactor, and CO 2 and H 2 mixed gas to achieve CO 2 Transformation produces the C1 organic product. Beneficial effect of the present invention improves CO 2 conversion rate and C1 product selectivity, and can effectively maintain the skeleton structure of the material.

Description

technical field [0001] The invention relates to a co-activation of CO with a loaded metal-organic framework material and atmospheric pressure-cooled plasma 2 method, belonging to CO 2 Transformation and application fields. Background technique [0002] Metal-organic frameworks (MOFs) are a new type of crystalline solid-state materials, generally a three-dimensional network structure formed by covalently connecting central metal ions and organic multidentate ligands. Metal-organic frameworks are widely used in gas storage, gas separation, sensors, and drug carriers due to their designable structural properties, high specific surface area, and uniform pore size. Compared with traditional adsorption materials, MOFs show great potential application prospects. In recent years, there have been many reports on the application of emerging porous materials MOFs as catalyst supports. Such as Zhang et al [Zhang S Q, Li L, Zhao S G, Sun ZH, Luo J H. Construction of interpenetrated r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/22B01J37/02B01J37/16B01J37/34C07C1/12C07C9/04C07C51/00C07C53/02
CPCB01J31/1691B01J31/2239B01J37/0201B01J37/16B01J37/349B01J2531/48C07C1/12C07C51/00C07C9/04C07C53/02
Inventor 张秀玲徐卫卫底兰波部德才
Owner DALIAN UNIV