Rapid synthesis of Pt-based alloy/carbon nanotube catalysts for a direct methanol fuel cell using flash light irradiation

Authors
Park, Sung-HyeonJung, Hye-MiUm, SukkeeSong, Yong-WonKim, Hak-Sung
Issue Date
2012-09
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.37, no.17, pp.12597 - 12604
Abstract
We synthesized Pt, Pt-Ru alloy and Pt-Ru-Mo alloy nanoparticles on the multi-walled carbon nanotubes (MWCNTs) using flash light irradiation and characterized these catalysts. Pt-100, Pt-50-Ru-50 alloy and Pt-43-Ru-43-Mo-14 alloy are coated onto MV/CNTs followed by flash light irradiation to facilitate the formation of nanoparticle-alloys. The fabricated pure Pt and Pt-based alloy nanoparticle/MWCNTs were characterized by X-ray diffraction (XRD), raman spectroscopy and scanning electron microscopy (SEM). Cyclic voltammetry (CV) studies and electrochemical impedance spectroscopy (EIS) results revealed that the Pt-43-Ru-43-Mo-14/MWCNT catalyst has higher activity and stability with regard to methanol electro-oxidation than the Pt-100/MWCNT and Pt-50-Ru-50/MWCNT catalysts. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
Keywords
CARBON NANOTUBES; SUPPORTED PLATINUM; ANODE CATALYST; ELECTROOXIDATION; ELECTROCATALYSTS; NANOPARTICLES; PERFORMANCE; ALLOY; METAL; SPECTROSCOPY; CARBON NANOTUBES; SUPPORTED PLATINUM; ANODE CATALYST; ELECTROOXIDATION; ELECTROCATALYSTS; NANOPARTICLES; PERFORMANCE; ALLOY; METAL; SPECTROSCOPY; Flash light irradiation; Carbon nanotubes; Methanol; Direct methanol fuel cells; Nanoparticle-alloys
ISSN
0360-3199
URI
https://pubs.kist.re.kr/handle/201004/128926
DOI
10.1016/j.ijhydene.2012.06.004
Appears in Collections:
KIST Article > 2012
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