Assessment of oxide nanoparticle stability in liquid phase transmission electron microscopy
| Autor: | Meijerink, Mark J., de Jong, Krijn P., Zecevic, Jovana, Sub Inorganic Chemistry and Catalysis, Inorganic Chemistry and Catalysis |
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| Přispěvatelé: | Sub Inorganic Chemistry and Catalysis, Inorganic Chemistry and Catalysis |
| Rok vydání: | 2019 |
| Předmět: |
Work (thermodynamics)
Materials science Oxide Nanoparticle 02 engineering and technology 010402 general chemistry oxide stability 01 natural sciences symbols.namesake chemistry.chemical_compound electron beam damage transmission electron microscopy General Materials Science Electrical and Electronic Engineering Nanoscopic scale Aqueous two-phase system metal oxide nanomaterials 021001 nanoscience & nanotechnology Condensed Matter Physics Atomic and Molecular Physics and Optics 0104 chemical sciences Gibbs free energy chemistry Transmission electron microscopy Chemical physics liquid phase TEM symbols 0210 nano-technology Beam (structure) |
| Zdroj: | Nano Research, 12(9), 2355. Tsinghua University Press |
| ISSN: | 1998-0000 1998-0124 |
| DOI: | 10.1007/s12274-019-2419-3 |
| Popis: | Studying liquid phase nanoscale dynamic processes of oxide nanoparticles is of considerable interest to a wide variety of fields. Recently developed liquid phase transmission electron microscopy (LP-TEM) is a promising technique, but destabilization of oxides by solid-liquid-electron interactions remains an important challenge. In this work we present a methodology to assess LP-TEM oxide stability in an aqueous phase, by subjecting several oxides of technological importance to a controlled electron dose in water. We show a correlation based on the Gibbs free energy of oxide hydration that can be used to assess the stability of oxides and demonstrate the existence of several remarkably stable oxides, with no observable structural changes after one hour of electron beam irradiation in LP-TEM. Rationalizing such destabilization phenomena combined with the identification of stable oxides allows for designing LP-TEM experiments free from adverse beam effects and thus investigations of numerous relevant nanoscale processes in water. |
| Databáze: | OpenAIRE |
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