Microwave synthesis and characterization of Pt nanoparticles supported on undoped nanodiamond for methanol electrooxidation
| Autor: | Fanwei Meng, Yuling Zhao, L.Y. Bian, Wang Yunchai, Jianbing Zang |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Materials science
Renewable Energy Sustainability and the Environment Inorganic chemistry Energy Engineering and Power Technology chemistry.chemical_element Condensed Matter Physics Platinum nanoparticles Catalysis chemistry.chemical_compound Fuel Technology chemistry Transmission electron microscopy Particle size Methanol Nanodiamond Platinum Chloroplatinic acid Nuclear chemistry |
| Zdroj: | International Journal of Hydrogen Energy. 37:1220-1225 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2011.09.118 |
| Popis: | Platinum nanoparticles supported on undoped nanodiamond (ND) with an average particle size of 50 nm were prepared using a microwave-heating polyol method. This method involves the addition of different amounts of chloroplatinic acid in the synthesis solution to obtain different Pt mass percentages. The Pt/ND catalysts were characterized by energy-dispersive spectroscopy, transmission electron microscopy, and X-ray diffraction. The small and uniform Pt nanoparticles were highly dispersed on ND supports. The mean size of the Pt particles was 4–5 nm. The effect of Pt loading on catalytic performance was investigated. Electrochemical measurements demonstrate that the Pt/ND catalysts prepared with proper Pt mass percentage exhibited a significantly high electrocatalytic activity for methanol electrooxidation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect