Abstract
In this study, Pt nanoparticles (NPs) were supported on reduced graphene oxide with the aid of disodium ethylenediamine-tetraacetate, where the Pt iona were initially attached to EDTA-functionalized graphene oxide (EDTA-GO) sheets and then the metal ion and the graphene oxide were reduced simultaneously by ethylene glycol. Electrochemical properties of the catalysts were studied by measuring cyclic voltammetries, and functional groups of the synthesized materials were investigated by Fourier transform infrared spectrometry. Average sizes and lattice parameters were measured by scanning electron microscopy, transmission electron microscopy images, and X-ray diffraction. The results showed that Pt NPs were successfully deposited on the EDTA-GO with the crystallite size of about 2.3 nm. The prepared catalysts demonstrated an enhanced tolerance towards CO poisoning, when EDTA-GO was used as supports. This suggests that EDTA plays a crucial role in the dispersion and electrocatalytic activity of the metal nanoparticles.
Original language | English |
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Pages (from-to) | 2509-2517 |
Number of pages | 9 |
Journal | Research on Chemical Intermediates |
Volume | 40 |
Issue number | 7 |
DOIs | |
State | Published - Sep 2014 |
Bibliographical note
Funding Information:Acknowledgments This research was partly supported by the Ministry of Knowledge and Economy (Korea) (Material source Technology Project Grant No. 10037238.2012). This research was also partly supported by the Ministry of science, ICT and Future Planning (Korea) (Nuclear Power Research Base Development Project, Grant No. 2012M2B2A4029894). This research was supported by the BK21 PLUS Centre for Advanced Chemical Technology (Korea) (21A20131800002).
Keywords
- Chelating group
- Direct methanol fuel cell
- EDTA
- EDTA-2Na
- Graphene nanoplate
- Pt nanoparticles