Check patentability & draft patents in minutes with Patsnap Eureka AI!

PtRuNi/C ternary alloy nanometer catalyst and preparation method thereof

A nano-catalyst and ternary alloy technology, applied in the field of materials, can solve the problems of easy occupation, Pt poisoning, etc., achieve the effect of not easy to agglomerate, simple preparation process, and improve the ability to catalyze methanol

Active Publication Date: 2010-07-21
SHANGHAI UNIVERSITY OF ELECTRIC POWER +1
View PDF0 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Pt has high catalytic activity for methanol oxidation, but the intermediate product of methanol oxidation (similar to CO) can easily occupy the active sites on the surface of Pt, which can easily poison Pt.

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
  • PtRuNi/C ternary alloy nanometer catalyst and preparation method thereof
  • PtRuNi/C ternary alloy nanometer catalyst and preparation method thereof
  • PtRuNi/C ternary alloy nanometer catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A preparation method of a PtRuNi / C ternary alloy nano-catalyst, comprising the following preparation steps:

[0023] (1) Preparation of carbon paste

[0024] Dissolve 30.6mg of activated carbon in 20ml of aqueous solution, raise the temperature to 40°C, stir with magnetic force, control the stirring rate to 500r / min, and form a carbon slurry after 30min;

[0025] (2), preparation of hydrosol

[0026] Slowly add 6ml of 0.03mM H 2 PtCl 6 , 7.5ml 0.015mM RuCl 3 , 2.5ml 0.005mM NiCl 2 , and then add 15 mg of trisodium citrate as a metal protective agent, stir ultrasonically, control the ultrasonic frequency to 40KHz, and stir for 30min to obtain a hydrosol;

[0027] (3), preparation of PtRuNi / C

[0028] Use 0.1M NaOH to adjust the pH of the solution to 8 in the hydrosol obtained in step (2), and slowly add 10ml of 0.1M NaBH dropwise at 40°C 4 As a reducing agent, react for 3 hours, vacuum filter, wash with water until there is no chloride ion in the solution, and vac...

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

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a PtRuNi / C ternary alloy nanometer catalyst and a preparation method thereof. The method comprises the following steps: dissolving activated carbon in water, heating to 40 DEG C, performing magnetic stirring for 30min while controlling the stirring speed to 500r / min to form carbon paste, slowly dropping H2PtCl6, RuCl3 and NiCl2 solutions in turn, adding trisodium citrate used as metal protector, performing ultrasonic stirring, using NaOH to adjust the pH value of the solution to 8, slowly dropping NaBH4 used as reducing agent at 40 DEG C to react for 3h, performing vacuum filtration, rinsing to ensure that no chlorine ion exists in the solution, and performing vacuum drying at 70 DEG C for 12h to obtain the PtRuNi / C ternary alloy nanometer catalyst. The PtRuNi / C ternary alloy nanometer catalyst of the invention can be used to greatly improve the catalytic ability to methanol in the fuel cell.

Description

technical field [0001] The invention relates to a PtRuNi / C ternary alloy nano catalyst and a preparation method thereof, belonging to the field of materials. Background technique [0002] Because of its high energy conversion efficiency and low pollution, it is beneficial to reduce the excessive use of fossil fuels and protect the earth's environment. Fuel cells have now attracted widespread attention from researchers from all over the world. Direct methanol fuel cell is a variant of hydrogen proton exchange membrane fuel cell. Methanol is equivalent to a hydrogen storage carrier. Methanol is a liquid organic compound with the simplest structure at normal temperature and pressure. It is easy to store, easy to source, and cheap. An ideal renewable fuel, and there is no C-C bond in the methanol molecule, high electrochemical activity, and can maintain a high energy conversion efficiency. [0003] Pt has high catalytic activity for methanol oxidation, but the intermediate prod...

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): B01J23/89B01J35/02H01M4/90
CPCY02E60/50
Inventor 徐群杰周小金李巧霞
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com