Preparation of Pt-Ru-Ni ternary nanoparticles by microemulsion and electrocatalytic activity for methanol oxidation

Journal Article · Thu Feb 15 04:00:00 EST 2007 · Materials Research Bulletin

DOI:https://doi.org/10.1016/j.materresbull.2006.05.021· OSTI ID:21000594

Xin, Zhang ^[1]; Feng, Zhang ^[1]; Renfeng, Guan ^[1]; Chan, K -Y ^[2]

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1. Department of Chemistry, Shantou University, Shantou 515063 (China)
2. Department of Chemistry, University of Hong Kong, Pokfulam Road, Hong Kong (China)

Ternary platinum-ruthenium-nickel nanoparticles are prepared by water-in-oil reverse microemulsions of water/Triton X-100/propanol-2/cyclohexane. Nanoparticles formed in the microemulsions are characterized by transmission electron microscopy (TEM), electron diffraction (ED), X-ray diffractometry (XRD), energy dispersive X-ray analysis (EDX). These resulting materials showed a homogenous alloy structure, the mono-dispersion and an average diameter of 2.6 {+-} 0.3 nm with a narrow particle size distribution. The composition and particle size of ternary Pt-Ru-Ni nanoparticles can be controlled by adjusting the initial metal salt solution and preparation conditions. Pt-Ru-Ni ternary metallic nanoparticles showed an enhanced catalytic activity towards methanol oxidation compared to Pt-Ru bimetallic nanoparticles.

• OSTI ID: 21000594
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 2 Vol. 42; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALLOYS
CHEMICAL PREPARATION
CYCLOHEXANE
ELECTROCHEMISTRY
ELECTRON DIFFRACTION
METHANOL
MICROEMULSIONS
NANOSTRUCTURES
NICKEL
OXIDATION
PARTICLE SIZE
PLATINUM
PROPANOLS
RUTHENIUM
TRANSMISSION ELECTRON MICROSCOPY
TRITONS
X-RAY DIFFRACTION