Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Fe3O4-enhanced sulfur-nitrogen co-doped graphene-loaded Pt catalyst and preparation method and application thereof

A graphene and co-doping technology, applied in the field of sulfur and nitrogen co-doped graphene-supported Pt catalyst and its preparation

Inactive Publication Date: 2019-08-02
GUANGXI NORMAL UNIV
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with regard to 2,5-dimercaptothiadiazole (TDDT) and Fe(OH) 3 colloids as precursors to prepare Fe 3 o 4 Enhanced sulfur and nitrogen co-doped graphene-supported Pt catalyst and its application to the anode electrocatalytic reaction of fuel cells have not been reported in literature and patents

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
  • Fe3O4-enhanced sulfur-nitrogen co-doped graphene-loaded Pt catalyst and preparation method and application thereof
  • Fe3O4-enhanced sulfur-nitrogen co-doped graphene-loaded Pt catalyst and preparation method and application thereof
  • Fe3O4-enhanced sulfur-nitrogen co-doped graphene-loaded Pt catalyst and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] refer to figure 1 , an Fe 3 o 4 The preparation method of the enhanced sulfur-nitrogen co-doped graphene-supported Pt catalyst comprises the steps:

[0021] 1) Add 20 mg graphene and 10-40 mg TDDT to a container filled with 20 mL triple distilled water, ultrasonically disperse at room temperature for 2 h, then add 3-10 mL Fe(OH) dropwise 3 Colloid, hydrothermal treatment at 50-180°C for 12 h, the obtained product is centrifuged, washed and dried in vacuum to obtain Fe(OH) 3 -TDDT functionalized graphene composite material, then weighed 20 mg Fe(OH) 3 - TDDT functionalized graphene composite material sample, placed in a quartz tube furnace and heat-treated at 500-900°C for 3h under nitrogen protection, to obtain Fe 3 o 4 Composite sulfur and nitrogen co-doped graphene (Fe 3 o 4 -SNG);

[0022] 2) In 20 mL of ethylene glycol according to a certain mass ratio (Pt / Fe 3 o 4 -SNG=1 / 4) Add 10 mg Fe 3 o 4 -SNG and 19.3 mM H 2 PtCl 6 solution, sonicated for 2 h, th...

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 discloses a Fe3O4-enhanced sulfur-nitrogen co-doped graphene-loaded Pt catalyst and a preparation method and an application thereof. The method comprises the steps of 1) carrying out heat treatment on Fe(OH)3-TDDT functionalized graphene to prepare a Fe3O4 composite sulfur-nitrogen co-doped graphene material; 2) taking Fe3O4 composite sulfur-nitrogen co-doped graphene as a carrier, and depositing irregular strip-shaped Pt nanoparticles on the surface by means of solvothermal reaction so as to obtain the Fe3O4-enhanced sulfur-nitrogen co-doped graphene-loaded Pt catalyst. The preparation method of the catalyst is simple in technological process and high in controllability, and the deposited strip-shaped Pt nanoparticles are large in electrochemical active surface area. In addition, there is strong electron interaction between the components of the catalyst, thereby showing excellent electrocatalytic activity, stability and CO toxicity for methanol oxidation.

Description

technical field [0001] The invention relates to the fields of electrocatalysis and fuel cells, specifically a Fe 3 o 4 Enhanced sulfur and nitrogen co-doped graphene-supported Pt catalyst and its preparation method and application. Background technique [0002] At present, the anode electrocatalysts of direct methanol fuel cells are still dominated by Pt-based materials. The high cost of noble metal Pt and its low electrocatalytic performance are one of the key factors hindering its large-scale commercial application. The performance and utilization efficiency of Pt-based electrocatalysts are closely related to the catalyst supports used and their surface properties. Graphene is a two-dimensional carbon nanomaterial widely used as a support for fuel cell electrocatalysts due to its excellent electronic conductivity, large specific surface area, high chemical and electrochemical stability, outstanding mechanical properties, and low cost. Material. However, the original gr...

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
IPC IPC(8): H01M4/92H01M8/1011
CPCH01M4/921H01M4/926H01M8/1011Y02E60/50
Inventor 樊友军吴丽芸钟静萍
Owner GUANGXI NORMAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com