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High-selectivity catalyst and preparation method thereof

A technology of catalysts and synthesis methods, applied in chemical instruments and methods, physical/chemical process catalysts, catalytic reactions, etc., can solve problems such as large overpotential and difficult to achieve, and achieve good CO selectivity and good catalytic performance.

Inactive Publication Date: 2016-06-22
HEBEI UNIV OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although electron-rich proton-pairing transfers to CO 2 Kinetics are relatively easy to achieve, and the reaction requires a large overpotential to occur, and it is difficult to achieve even under catalyst conditions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Adopt preparation method of the present invention to prepare catalyst, at first, adopt concentration 2mol / lNi(NO 3 ) 2 and 2ml of N,N'-dimethylformamide (DMF) solution of phthalic acid (TPA), mix evenly, put it into a microwave chemical synthesizer, and conduct a microwave chemical synthesis reaction for 3min at a power of 1000W (2.45GHz) , and then washed and centrifuged once and twice with DMF and absolute ethanol, and dried in an oven at 60°C. Under the above-mentioned preparation process conditions, the prepared highly active catalyst undergoes CO 2 The reduction catalytic reaction test shows that the yield of CO reaches 158 μmol after 6 hours of reaction.

Embodiment 2

[0026] Adopt preparation method of the present invention to prepare catalyst, at first, adopt concentration 1mol / lCo(NO 3 ) 2 and 2ml of N,N'-dimethylformamide (DMF) solution of phthalic acid (TPA), mix evenly, put it into a microwave chemical synthesizer, and conduct a microwave chemical synthesis reaction at a power of 1000W (2.45GHz) for 8min , followed by washing and centrifugation with DMF and absolute ethanol once and twice, and drying in an oven at 60°C. Under the above-mentioned preparation process conditions, the prepared highly active catalyst undergoes CO 2 The reduction catalytic reaction test shows that the yield of CO reaches 150 μmol after 6 hours of reaction.

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PUM

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Abstract

The invention belongs to the field of preparation of a catalyst material and particularly relates to a carbon dioxide reduction reaction catalyst and a preparation method thereof. Powder of the catalyst is composed of a complex compound formed by transition metal nickel, oxygen, hydrogen, carbon and nitrogen. The catalyst is prepared through the following steps that an N, N'-dimethylformamide (DMF) solution of Ni(NO3)2 and phthalic acid (TPA) is adopted to be subjected to microwave chemistry synthesis in a microwave synthesizer, and the catalyst is obtained. The catalyst can catalyze a CO2 reduction reaction, and a single product CO is obtained. The catalyst is good in conversion effect, and selectivity of CO is good.

Description

Technical field [0001] The present invention is a field of preparation of catalyst materials, and specially involves a high -selective CO 2 Restore the reaction catalyst and its preparation method. Background technique [0002] Energy shortage, CO 2 The environmental harm caused by the greenhouse effect caused by emissions is becoming increasingly serious. 2 Hydrophobic catalytic restoration of carbon and hydrogen fuel is the most potential method to solve energy and environmental problems.This method has the advantages of pollution -free, low cost, and rich resources, etc., and use solar energy to stimulate semiconductor visible photocatalysts, and use the catalyst catalyst to make CO 2 Converting into fuel resources such as methanol, methane, and carbon monoxide can not only solve the problems of global warming and fossil fuel exhaustion, but also make CO 2 It can be used by recycling and is one of the current research hotspots. [0003] In CO 2 In the process of returning th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/22B01J35/10B01D53/86B01D53/62
CPCB01D53/8671B01J31/2213B01D2257/504B01J2531/847B01J2231/60B01J35/60B01J35/39Y02A50/20
Inventor 郑立允赵立新梁顺星刘晓艳
Owner HEBEI UNIV OF ENG