Method for electrochemical synthesis of Cu3 (BTC) 2 as catalyst and NH3-SCR application of Cu3 (BTC) 2

A catalyst and electrochemical technology, applied in the field of flue gas denitrification, can solve the problems of affecting the properties of reaction products and the inability to effectively observe the reaction process, and achieve the effects of flexible method, uniform crystal form and easy operation

Inactive Publication Date: 2015-07-29
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this synthesis method can only see the reaction result, and cannot effectively observe the reaction process, and there are many uncontrollable factors in the reaction process that affect the properties of the reaction product.

Method used

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  • Method for electrochemical synthesis of Cu3 (BTC) 2 as catalyst and NH3-SCR application of Cu3 (BTC) 2
  • Method for electrochemical synthesis of Cu3 (BTC) 2 as catalyst and NH3-SCR application of Cu3 (BTC) 2
  • Method for electrochemical synthesis of Cu3 (BTC) 2 as catalyst and NH3-SCR application of Cu3 (BTC) 2

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Experimental program
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Effect test

Embodiment 1

[0024] Prepare 0.1M KOH, 0.15M K 2 SO 4 Mix the solution with 0.01M polyvinyl alcohol, place the copper electrode in the above mixed solution, ultrasonically treat it in the ultrasonic oscillation pool for 0.5h, then take it out and dry it naturally; prepare 0.03-0.1M 1-butyl-3 methyl A mixed solution of imidazolium bromide in methanol and ethanol, add 0.06-0.12M trimesic acid and 0.2-0.5M ethylenediaminetetraacetic acid (EDTA) and diethylenetri Amine (DEA), continue stirring. The treated copper electrode is used as the anode, and the platinum electrode is used as the cathode, and electrolyzed at 10.2-14.6V for 0.5-2.5h at room temperature to obtain Cu 3 (BTC) 2 catalyst, the resulting Cu 3 (BTC) 2 The catalyst was washed repeatedly with ethanol, dried, and 2 Activated at 200-280°C for 2 hours under protection to obtain active Cu 3 (BTC) 2 catalyst.

Embodiment 2

[0026] Prepare 0.3M KOH, 0.15M K 2 SO 4 Mix the solution with 0.03M polyvinyl alcohol, treat it with an ultrasonic copper electrode at 100W in an ultrasonic oscillation pool for 1 hour, and then take it out to dry naturally.

Embodiment 3

[0028] Prepare 0.5M KOH, 0.15M K 2 SO 4 Mix the solution with 0.05M polyvinyl alcohol, treat it with an ultrasonic copper electrode at a power of 100W in an ultrasonic oscillation pool for 2 hours, and then take it out to dry naturally.

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Abstract

The invention relates to a method for electrochemical synthesis of Cu3 (BTC) 2 and belongs to the field of preparation technologies of catalytic material and nanometer material. The method comprises the following steps: preparing a mixed solution of 1-butyl-3 methylimidazole bromide, trimesic acid, methyl alcohol and ethyl alcohol, adopting a copper electrode as an anode and a platinum electrode as a cathode, and adjusting the impressed voltage through a mixed solution of EDTA and DETA for electrolysis to obtain the Cu3 (BTC) 2 material. According to the invention, the adopted raw materials are cheap and easy to obtain, the operation is simple and easy, the preparation method is simple and easy to control, the equipment requirements are low, the environmental friendliness is achieved, and the Cu3 (BTC) 2 material is of a regular octahedron structure and has a diameter of 10-20 nm and a specific area of 950 m<2>g<-1>; the test conditions of the reaction are as follows: 500 ppm of NO, 500 ppm of NH3, 5% of O2, N2 as balance gas, the total flow of exhaust gas being 100ml/min, and the denitration catalytic efficiency reaching 100% at 230-280 DEG C.

Description

technical field [0001] The present invention relates to electrochemically synthesized Cu 3 (BTC) 2 The method belongs to the technical field of preparation of catalytic materials and nanometer materials, and in particular relates to the preparation of small-sized (100-300nm) metal-organic framework compound MOF materials with controllable structures. The invention is applied to the field of flue gas denitrification, and involves the use of Cu 3 (BTC) 2 The material is a catalyst to remove nitrogen oxides by selective catalytic reduction. Background technique [0002] Nitrogen oxides (NOx) are one of the main sources of air pollution, mainly including NO and NO 2 . With the development of my country's economy, the emissions of automobile exhaust and factory flue gas are increasing year by year, and the environmental hazards caused by nitrogen oxides in flue gas are gradually emerging. Acid rain and photochemical smog have seriously affected the health of animals and pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/12B01D53/90B01D53/56
Inventor 石勇刘震震李春艳李新勇肇启东
Owner DALIAN UNIV OF TECH
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