Next Article in Journal
Adhesion and Growth of Vascular Smooth Muscle Cells on Nanostructured and Biofunctionalized Polyethylene
Next Article in Special Issue
Butanol Dehydration over V2O5-TiO2/MCM-41 Catalysts Prepared via Liquid Phase Atomic Layer Deposition
Previous Article in Journal
Accelerated Thermal Cycling Test of Microencapsulated Paraffin Wax/Polyaniline Made by Simple Preparation Method for Solar Thermal Energy Storage
Previous Article in Special Issue
Degradation of 2,4-Dichlorophenoxyacetic Acid (2,4-D) by Novel Photocatalytic Material of Tourmaline-Coated TiO2 Nanoparticles: Kinetic Study and Model
Materials 2013, 6(5), 1621-1631; doi:10.3390/ma6051621

The Effect of PtRuIr Nanoparticle Crystallinity in Electrocatalytic Methanol Oxidation

1,* , 1
1 Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education of China, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China 2 Key Laboratory of Fuel Cell Technology of Guangdong Province, South China University of Technology, Guangdong, Guangzhou 510640, China 3 South African Institute for Advanced Materials Chemistry, University of the Western Cape, Cape Town 7535, South Africa
* Authors to whom correspondence should be addressed.
Received: 18 February 2013 / Revised: 23 April 2013 / Accepted: 24 April 2013 / Published: 29 April 2013
(This article belongs to the Special Issue Advances in Catalytic Materials)
View Full-Text   |   Download PDF [886 KB, uploaded 29 April 2013]   |  


Two structural forms of a ternary alloy PtRuIr/C catalyst, one amorphous and one highly crystalline, were synthesized and compared to determine the effect of their respective structures on their activity and stability as anodic catalysts in methanol oxidation. Characterization techniques included TEM, XRD, and EDX. Electrochemical analysis using a glassy carbon disk electrode for cyclic voltammogram and chronoamperometry were tested in a solution of 0.5 mol L−1 CH3OH and 0.5 mol L−1 H2SO4. Amorphous PtRuIr/C catalyst was found to have a larger electrochemical surface area, while the crystalline PtRuIr/C catalyst had both a higher activity in methanol oxidation and increased CO poisoning rate. Crystallinity of the active alloy nanoparticles has a big impact on both methanol oxidation activity and in the CO poisoning rate.
Keywords: electrocatalysts; fuel cells; methanol oxidation; structure; crystallinity electrocatalysts; fuel cells; methanol oxidation; structure; crystallinity
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Share & Cite This Article

Further Mendeley | CiteULike
Export to BibTeX |
EndNote |
MDPI and ACS Style

Ma, Y.; Wang, R.; Wang, H.; Liao, S.; Key, J.; Linkov, V.; Ji, S. The Effect of PtRuIr Nanoparticle Crystallinity in Electrocatalytic Methanol Oxidation. Materials 2013, 6, 1621-1631.

View more citation formats

Related Articles

Article Metrics

For more information on the journal, click here


[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert