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CO2 catalytic reduction device and method

A catalyst, micro-plasma technology, used in chemical instruments and methods, separation methods, gas treatment, etc.

Active Publication Date: 2021-01-15
HENAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Mechanical energy includes wind energy, water energy, ocean energy, raindrop energy, etc. It is an inexhaustible renewable energy source, and has the potential to provide energy sources for chemical reactions. Efficient reduction of CO 2 precedent

Method used

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  • CO2 catalytic reduction device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] use figure 1 The device shown is for CO 2 Carry out catalytic reduction, wherein, the triboelectric nanogenerator includes two friction layers, which are copper friction layer and PTFE friction layer respectively, two output electrodes are connected at both ends of the copper friction layer, and the two output electrodes are respectively connected to the rectifier bridge through wires. Two AC input terminals, the two DC output terminals of the rectifier bridge are connected to the tungsten needle (the radius of curvature is 5 microns) and the working electrode plate (made of ITO) of the micro-plasma component through wires, and the working electrode plate is opposite to the tungsten needle One side is loaded with CO 2 The reduction catalyst is TiO 2 , the load is 8mg / cm 2 .

[0041] Place the micro-plasma assembly in a 500mL airtight container, into which CO 2 , so that CO 2 All the gas in the replacement container (that is, the volume content is 100%) is turned o...

Embodiment 2～5

[0043] The difference from Example 1 is that the rotational speeds of the frictional nanogenerators are 100rpm, 300rpm, 400rpm and 500rpm respectively, and the CO gas detector is used to detect the content of CO produced, and the reaction time is 1h, which is consistent with the results of Example 1. see you together Figure 4 , and the corresponding specific values ​​are shown in Table 1.

Embodiment 6～9

[0050] Adopt the device and method of embodiment 1 to CO 2 Carry out catalytic reduction, set the discharge distance to 0.02mm, 0.10mm, 0.15mm and 0.25mm in turn, detect the content of CO produced every 1h, and react for 6h in total.

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Abstract

The invention relates to the technical field of energy conversion and storage, in particular to a CO2 catalytic reduction device and method. The CO2 catalytic reduction device comprises a friction nano-generator and a micro-plasma assembly; the micro-plasma assembly comprises a discharge electrode and a working electrode plate; the discharge electrode and the working electrode plate are respectively connected with two output ends of the friction nano-generator through leads; and a CO2 reduction catalyst is loaded on one surface, opposite to the discharge electrode, of the working electrode plate. The device disclosed by the invention can realize a catalytic reduction reaction of CO2 molecules at a low temperature by utilizing mechanical energy.

Description

technical field [0001] The invention relates to the technical field of energy conversion and storage, in particular to a CO 2 Catalytic reduction apparatus and method. Background technique [0002] With the transition of human beings to use fossil resources, resulting in a large amount of CO 2 Gas emissions, causing serious environmental problems and energy crises. CO 2 It is not only an important greenhouse gas, but also an inexhaustible carbon resource. Converting them into high value-added chemicals and fuels is a promising avenue to simultaneously address energy and environmental issues. Due to CO 2 The molecules are thermodynamically and kinetically inert, leading to their conversion requiring large energy intake or excess auxiliaries. From a thermodynamic point of view, the traditional heating method breaks CO 2 , need to be carried out under very harsh conditions, and the conversion rate is very low. In addition, the current energy required for thermocatalytic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/62
CPCB01D53/62B01D53/86B01D2259/818Y02A50/20
Inventor 程纲张宝向晓晨李素敏赵柯杜祖亮
Owner HENAN UNIVERSITY