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

A preparation method of black phosphorus titanium dioxide heterogeneous structure material loaded noble metal nanoparticles

A technology of titanium dioxide heterogeneous and structural materials, applied in the field of materials science, can solve the problems of high price and low catalytic activity of catalysts, achieve the effect of simple and clear preparation process, and improve electrochemical activity and stability

Active Publication Date: 2019-04-19
SHANGHAI UNIVERSITY OF ELECTRIC POWER
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above-mentioned technical problems existing in catalysts in the prior art, the present invention provides a method for preparing noble metal nanoparticles supported by heterogeneous structure materials of black phosphorus titanium dioxide. The new black phosphorus titanium dioxide heterostructure materials support noble metal nanoparticles The preparation method should solve the technical problems of low catalytic activity and high price of direct alcohol fuel cell catalysts in the prior art

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
  • A preparation method of black phosphorus titanium dioxide heterogeneous structure material loaded noble metal nanoparticles
  • A preparation method of black phosphorus titanium dioxide heterogeneous structure material loaded noble metal nanoparticles
  • A preparation method of black phosphorus titanium dioxide heterogeneous structure material loaded noble metal nanoparticles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for preparing a black phosphorus titanium dioxide heterogeneous structure loaded noble metal nano particle material, specifically comprising the following steps:

[0024] (1) Preparation of Heterogeneous Structure Materials of Black Phosphorous Titanium Dioxide

[0025] ① Preparation of black phosphorus: Add 2g of red phosphorus and 15mL of ultrapure water into a 25mL hydrothermal kettle at room temperature, and steam at 200°C for 12 hours to remove the oxide layer on the surface of red phosphorus. Then take it out and dry it, grind it with an agate mortar for 0.5-1h, and then perform mechanical ball milling on the multi-layer black phosphorus precursor under normal temperature and pressure with argon protection, ball milling for 24-48h, and keep the rotation speed at 500r / min. Black phosphorus is obtained after mechanical ball milling.

[0026] ② Preparation of titanium dioxide: Use a pipette to measure 10 mL of tetra-n-butyl titanate and add it to a dry 50 m...

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 black phosphorus TiO2 heterojunction structure material loaded precious metal nanoparticle. The preparation method comprises the steps of preparing a black phosphorus TiO2 heterojunction structure material, in which a black phosphorus nanosheet layer material and a TiO2 nanosheet layer material are ball-milled under argon protection, the black phosphorus nanosheet layer material and the TiO2 nanosheet layer material are respectively washed with ethanol and water, and the black phosphorus TiO2 heterojunction structure material is obtained by suction filtration, is dried in vacuum and is collected; and dispersing the black phosphorus TiO2 heterojunction structure material in the ethanol, adding a stabilizer and a metal precursor after ultrasonic processing, continuing to perform ultrasonic stirring, adjusting pH to 9-11, adding a reducing agent, continuing to stir, and obtaining the black phosphorus TiO2 heterojunction structure material loaded precious metal nanoparticle after vacuum drying. The black phosphorus TiO2 heterojunction structure material carrier is combined with precious metal better, and the electrochemical activity and the stability of a fuel cell catalyst are effectively improved; and moreover, the preparation process is easy to operate and is suitable for production on a large scale.

Description

technical field [0001] The invention belongs to the field of materials science, and relates to a fuel cell anode catalyst material, in particular to a preparation method of a black phosphorus titanium dioxide heterogeneous structure material loaded with precious metal nanoparticles. Background technique [0002] Due to the depletion of global fossil energy resources and the aggravation of environmental pollution, it is urgent for people to find clean and efficient new environmentally friendly energy sources. Among them, fuel cells are used in various fields due to their high energy density and wide range of fuel sources. The key to the energy conversion efficiency of fuel cells is the catalyst. The electrocatalysts of direct alcohol fuel cells are dominated by noble metals, but the reserves of noble metals in nature are limited and expensive, and they are easily poisoned by intermediate products. Therefore, precious metals need to be compounded with other materials. Among t...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/90H01M4/92H01M4/88
CPCH01M4/88H01M4/9041H01M4/9075H01M4/925Y02E60/50
Inventor 徐群杰吴桐林艳余克刘其范金辰
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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