Copper oxide nanowire loaded silver particle composite electrode, preparation method and application

A copper oxide nanowire and composite electrode technology, applied in chemical instruments and methods, catalyst activation/preparation, electrodes, etc., can solve the problems of low carbon dioxide reduction catalytic efficiency, few catalytic active sites, and large specific surface area. The effect of increasing catalytic reaction active sites, good application prospects, and increasing specific surface area

Active Publication Date: 2020-12-15
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology uses a combination of materials called Foams (foamed metals) with tiny holes that act like cathodes. These composites can be made by sputtering thin layers onto an aluminum sheet. They have excellent properties such as high electric conduction capacity, increased efficiency towards reduced CO2 production when reacted chemistryally. Additionally, they provide unique surfaces where certain chemical reactions occur more efficiently than others due to their small size and large number of atoms attached to them. By loading these components into this new type of material, it becomes possible to create complex structures containing multiple different types of molecules. Overall, this innovative design improves the performance and usefulness of ElectroChemica Actuators (ECA).

Problems solved by technology

Technologies aimed towards converting greenhouse gases like C02into valuable products include various processes that involve reducing it by reacting them chemistry reactions under specific conditions called regenerative cycles. However, current technics require expensive metals or complex materials due to limitations associated with environmental concerns. Therefore, new alternatives must emerge through discovery efforts focused on developing highly effective catalysators capable of efficiently decompositing atmospheric pollutants like carbon monoxides without generating harmful substances during combustion process.

Method used

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  • Copper oxide nanowire loaded silver particle composite electrode, preparation method and application
  • Copper oxide nanowire loaded silver particle composite electrode, preparation method and application
  • Copper oxide nanowire loaded silver particle composite electrode, preparation method and application

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Experimental program
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Effect test

Embodiment 1

[0076] The composite electrode in this embodiment, the preparation method thereof includes the steps of:

[0077] As a substrate as a substrate, it is soaked in acetone, and the ultrasonic treatment is transferred for 10 min; then transfer the substrate to 3 mol L. - 1 In the HCl, ultrasonic treatment is 10 min; deionized water is rinsed several times, dry under the flow of nitrogen, resulting in U.

[0078] 3 g of NaOH was dissolved in 30 ml of deionized water, followed by adding 0.86g (NH) 4 ) 2 S 2 O 8 , Stirred for 10 min, resulting in V; extracting U for 20min, rinse with deionized water, drying under the flow of nitrogen, to obtain W; add W into the porcelain, 5 ° C · min -1 After an annealing at 150 ° C for 2 hours, X (cuo nanowire) is obtained; the foam copper scan electron microscope is figure 1 The scanning electron microscopy of X (Cuo Nano) is like figure 2 Indicated.

[0079] Take 45ml 5mmol L -1 Agno 3 Mix Y is mixed with 5 ml of anhydrous methanol to be immersed in...

Embodiment 2

[0086] The composite electrode in this embodiment, the preparation method thereof includes the steps of:

[0087] Use copper foil as a substrate, soak it in acetone, ultrasonic treatment 10 min; transfer the substrate to 3 mol·L -1 In the HCl, ultrasonic treatment is 10 min; deionized water is rinsed several times, dry under the flow of nitrogen, resulting in U.

[0088] 3 g of NaOH was dissolved in 30 ml of deionized water, followed by adding 0.86g (NH) 4 ) 2 S2 O 8 , Stirred for 10min, to give V; V dipped in the solution in the U 20min, rinsed with deionized water several times, dried under a stream of nitrogen to give W is;

[0089] W into the boat and the porcelain in air at 5 ℃ min -1 , Annealing at 150 deg.] C 2h, cooled to obtain X-; take 45mL10mmol L -1 Agno 3 5mL anhydrous methanol and mixed uniformly to obtain the Y;

[0090] X-Y is immersed in the solution, the generator side light irradiation xenon lamp catalytic X, taken deionized water rinse 2min electrode several ti...

Embodiment 3

[0097] The composite electrode in this embodiment, the preparation method thereof includes the steps of:

[0098] Copper foil as the substrate, immersed in acetone and sonicated for 10min; the substrate was transferred to 3mol L -1 In the HCl, ultrasonic treatment is 10 min; deionized water is rinsed several times, dry under the flow of nitrogen, resulting in U.

[0099] The 3g NaOH dissolved in 30ml of deionized water, followed by addition of 0.86g (NH 4 ) 2 S 2 O 8 , Stirred for 10min, to give V; V dipped in the solution in the U 20min, rinsed with deionized water several times, dried under a stream of nitrogen to give the W; W into a porcelain boat, min in air at 5 ℃ -1 , Annealed at 150 deg.] C for 2 hours to obtain X-cooled; taken 45mL 10mmol L -1 Agno 3 5ml of anhydrous methanol and mixed uniformly to obtain Y; X-Y is dipped into the solution, a xenon lamp light generator side catalytic irradiation of X, taken 3min after rinsing with deionized water several times the electro...

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Abstract

The invention discloses a copper oxide nanowire loaded silver particle composite electrode, a preparation method and application, which belong to the technical field of electrochemistry. According tothe composite electrode, foamy copper or copper foil serves as a substrate, Cu (OH) 2 nanowires are synthesized through a chemical oxidation method and then annealed in air to prepare CuO nanowires, metal Ag is deposited on the foamy copper or copper foil through a strong light irradiation method, and the composite electrode serves as an electrochemical reduction carbon dioxide catalytic electrode. The electrode provided by the invention has a very high specific surface area, improves the defect of few catalytic active sites on the surface of a traditional metal foil electrode, improves the activity of electrochemical reduction of carbon dioxide, and has the advantages of novel and simple preparation method, low cost, strong operability and good application prospect.

Description

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Claims

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Application Information

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Owner NANJING UNIV OF TECH
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