Preparation method of beta-cyclodextrin functionalized graphene Pd-loaded nanoflower catalyst and application of beta-cyclodextrin functionalized graphene Pd-loaded nanoflower catalyst in formic acid electrooxidation

A technology of cyclodextrin and nanoflowers, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problem of low activity of Pd catalyst, achieve superior electrocatalytic performance, simple preparation method, The effect of high catalytic activity

Inactive Publication Date: 2020-10-30
NANCHANG NORMAL UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the technical defects of the prior art, and provides a preparation method of a β-cyclodextrin functionalized graphene-supported Pd nanoflower cat

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of beta-cyclodextrin functionalized graphene Pd-loaded nanoflower catalyst and application of beta-cyclodextrin functionalized graphene Pd-loaded nanoflower catalyst in formic acid electrooxidation
  • Preparation method of beta-cyclodextrin functionalized graphene Pd-loaded nanoflower catalyst and application of beta-cyclodextrin functionalized graphene Pd-loaded nanoflower catalyst in formic acid electrooxidation
  • Preparation method of beta-cyclodextrin functionalized graphene Pd-loaded nanoflower catalyst and application of beta-cyclodextrin functionalized graphene Pd-loaded nanoflower catalyst in formic acid electrooxidation

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] A preparation method for a β-cyclodextrin functionalized graphene-supported Pd nanoflower catalyst for formic acid electrooxidation, the method is prepared by a constant potential electrodeposition method, and the specific steps are as follows:

[0026] 1) Weigh 0.25 mg of pre-synthesized β-CD-rGO and dissolve it in 1 mL of water, and ultrasonically disperse for 1 hour to make the solution evenly dispersed;

[0027] 2) Use a pipette gun to drop the solution obtained in step 1 onto the glassy carbon electrode, drop 0.25 μL each time, drop 6 times, the total amount of dropping is 1.5 μL, and dry naturally at room temperature;

[0028] 3) After the β-CD-rGO modified glassy carbon electrode obtained in step 2 is dried, add 1 μL of 0.5wt% nafion solution dropwise, and dry under an infrared lamp for 10 minutes;

[0029] 4) Place the substrate obtained in step 3 in a 3mmol / L H2PdCl4 solution, deposit at a potential of -0.2V for 100-500s, wash with water three times after the d...

Embodiment 1

[0031] 1) Weigh 0.25mg of β-CD-rGO and dissolve it in 1mL of water, and disperse by ultrasonic for 1 hour to make the solution evenly dispersed. The resulting solution was added dropwise to a glassy carbon electrode, with a total volume of 1.5 μL, and dried naturally at room temperature. After drying, 1 μL of 0.5wt.% nafiion solution was added dropwise, and dried under an infrared lamp for 10 minutes.

[0032] 2) Place the substrate obtained in 1) in 3mmol / L H 2 PdCl 4 In the solution, deposit in the potential range of -0.2V for 100s, wash with water three times after the deposition, and blow dry with nitrogen to prepare the β-cyclodextrin functionalized graphene-supported Pd nanoflower catalyst, which is denoted as Pd nanoflowers / β-CD-rGO-100.

[0033] The prepared catalyst was placed in 0.5mol / L H 2 SO 4 Electrochemical tests were carried out in +1.0mol / L HCOOH solution to study the catalytic performance of the catalyst for the electrooxidation of formic acid.

Embodiment 2

[0035] The deposition time in step 2) in Example 1 was changed to 200s, other steps were the same as in Example 1, and the obtained catalyst was recorded as Pd nanoflowers / β-CD-rGO-200. The catalytic performance research of the electrocatalyzed formic acid oxidation is the same as that in Example 1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a preparation method of a beta-cyclodextrin functionalized graphene Pd-loaded nanoflower catalyst and application of the beta-cyclodextrin functionalized graphene Pd-loaded nanoflower catalyst in formic acid electrooxidation. The method comprises the following steps of firstly, dissolving beta-CD-rGO in water, and carrying out ultrasonic dispersion; dropwise adding the obtained solution onto a glassy carbon electrode, and naturally drying at normal temperature; dropwise adding a nafion solution, and drying under an infrared lamp to obtain a substrate; finally, the obtained substrate being placed in an H2PdCl4 solution, deposition being conducted at a specific potential, cleaning and nitrogen blow-drying being conducted after deposition is completed, and a finished product being obtained. The catalyst is prepared by taking chloropalladic acid as a precursor and beta-cyclodextrin functionalized graphene (beta-CD-rGO) as a carrier and adopting a constant potential electrodeposition method, the prepared Pd nanoflower catalyst has excellent electrocatalytic performance on formic acid electrooxidation at room temperature. The preparation method of the catalyst is simple, the process is green and environment-friendly, expanded production is easy, and the catalyst has a good prospect.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Owner NANCHANG NORMAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2023 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap