Ionic liquid-assisted synthesis of platinum nanocubes and their improved electrocatalytic activity for the ammonia oxidation reaction
| Autor: | Shan He, Shu-Ni Li, Jong-Min Lee, Zhu-Qing Wu |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Tetrafluoroborate
Renewable Energy Sustainability and the Environment Chemistry Reducing agent Inorganic chemistry Diethylene glycol Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Electrocatalyst 01 natural sciences Redox 0104 chemical sciences chemistry.chemical_compound Fuel Technology X-ray photoelectron spectroscopy Ionic liquid 0210 nano-technology Platinum |
| Zdroj: | International Journal of Hydrogen Energy. 41:1990-1996 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2015.10.069 |
| Popis: | Well-defined Pt nanocubes (Pt–NCs) with mean diameters of 6.2 nm are synthesized successfully by a diethylene glycol (DEG) reduction route with the assistance of 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim]BF 4 ) ionic liquid. The structure, size, morphology and composition of Pt–NCs are characterized by transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy, etc. Experimental characterization shows DEG serves as a reducing agent whereas [Bmim]BF 4 acts as a stabilizer and structure direct agent during the synthesis of Pt–NCs. Due to the crystal facets effect, the as-prepared Pt–NCs exhibit significantly enhanced electrocatalytic activity and anti-poisoning capability for the ammonia oxidation reaction in alkaline media. |
| Databáze: | OpenAIRE |
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