Flash Light-Assisted Facile and Eco-Friendly Synthesis of Platinum-Based Alloy Nanoparticle/Carbon Nano-Tube Catalysts for a Direct Methanol Fuel Cell

Title
Flash Light-Assisted Facile and Eco-Friendly Synthesis of Platinum-Based Alloy Nanoparticle/Carbon Nano-Tube Catalysts for a Direct Methanol Fuel Cell
Author
김학성
Keywords
RAPID SYNTHESIS; CARBON NANOTUBES; ELECTROCATALYTIC ACTIVITY; ANODE CATALYST; SOLAR-CELLS
Issue Date
2015-01
Publisher
ELECTROCHEMICAL SOC INC
Citation
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v. 162, NO 1, Page. 204-210
Abstract
In this work, we propose a flash light-assisted facile and eco-friendly synthesis technique for Pt-based alloy nanoparticle/carbon nanotube catalysts. Pt and Pt-Ru alloy nanoparticle/multiwalled carbon nanotube (MWCNT) catalysts could be directly fabricated in a few milliseconds from MWCNTs immersed in metal precursors by flash light irradiation at room temperature and ambient conditions. The fabricated Pt-based alloy nanoparticle /MWCNT catalysts were characterized by X-ray photoelectron spectroscopy, ultraviolet-visible spectroscopy, Raman spectroscopy, and scanning electron microscopy. In order to evaluate the electro-catalytic surface area and methanol oxidation of Pt and Pt-Ru alloy catalysts, Cu-stripping voltammetry, cyclic voltammetry, linear sweep voltammetry studies and electrochemical impedance spectroscopy analysis were conducted. When compared to catalysts fabricated by a conventional chemical fabrication process, a Pt50-Ru50/MWCNT catalyst fabricated directly from metal precursors by flash light irradiation exhibited superior activity and stability with regard to methanol electro-oxidation.
URI
http://hdl.handle.net/20.500.11754/21355http://jes.ecsdl.org/content/162/1/F204
ISSN
0013-4651
DOI
10.1149/2.0711501jes
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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