Flash Light-Assisted Facile and Eco-Friendly Synthesis of Platinum-Based Alloy Nanoparticle/Carbon Nano-Tube Catalysts for a Direct Methanol Fuel Cell
- Authors
- Park, Sung-Hyeon; Kim, Hak-Sung
- Issue Date
- Jan-2015
- Publisher
- ELECTROCHEMICAL SOC INC
- Citation
- JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.162, no.1, pp.F204 - F210
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF THE ELECTROCHEMICAL SOCIETY
- Volume
- 162
- Number
- 1
- Start Page
- F204
- End Page
- F210
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/25662
- DOI
- 10.1149/2.0711501jes
- ISSN
- 0013-4651
- 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 Pt-50-Ru-50/MWCNT catalyst fabricated directly from metal precursors by flash light irradiation exhibited superior activity and stability with regard to methanol electro-oxidation.
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