Au(111)-supported Platinum Nanoparticles: Ripening and Activity
| Autor: | Lea Nienhaus, Maximilian Krause, Friedrich Esch, Martin Gruebele, Sarah Wieghold, Ueli Heiz, Armin Siebel, Patricia Wand |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Nanostructure Mechanical Engineering Nanoparticle chemistry.chemical_element Nanotechnology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Platinum nanoparticles 01 natural sciences 0104 chemical sciences law.invention Catalysis chemistry.chemical_compound chemistry Mechanics of Materials law General Materials Science Scanning tunneling microscope Cyclic voltammetry 0210 nano-technology Platinum Ethylene glycol |
| Zdroj: | MRS Advances. 2:439-444 |
| ISSN: | 2059-8521 |
| Popis: | The recent spotlight on supported nanoparticles (NPs) has attracted attention in the field of catalysis and fuel cell technology. Supported NPs can be used as model catalysts to gain a fundamental understanding of the catalytic properties at the interface. Here, especially the wet-chemical preparation of platinum NPs in alkaline ethylene glycol is a powerful approach to synthesize stable particles with a narrow size distribution in the nanometer regime. We combine high resolution imaging by scanning tunneling microscopy with electrochemical characterization by cyclic voltammetry to gain insights into the underlying degradation mechanism of supported platinum NPs, paving the way toward a rational design of supported catalysts with controlled activity and stability. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink