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学術論文

Synthesis of plasmonic Fe/Al nanoparticles in ionic liquids

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Simon,  Paul
Paul Simon, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Grin,  Yuri
Juri Grin, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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引用

Schmitz, A., Meyer, H., Meischein, M., Garzón Manjón, A., Schmolke, L., Giesen, B., Schlüsener, C., Simon, P., Grin, Y., Fischer, R. A., Scheu, C., Ludwig, A., & Janiak, C. (2020). Synthesis of plasmonic Fe/Al nanoparticles in ionic liquids. RSC Advances, 10, 12891-12899. doi:10.1039/d0ra01111h.


引用: https://hdl.handle.net/21.11116/0000-0006-4DD0-9
要旨
Bottom-up and top-down approaches are described for the challenging synthesis of Fe/Al nanoparticles (NPs) in ionic liquids (ILs) under mild conditions. The crystalline phase and morphology of the metal nanoparticles synthesized in three different ionic liquids were identified by powder X-ray diffractometry (PXRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), selected-area electron diffraction (SAED) and fast Fourier transform (FFT) of high-resolution TEM images. Characterization was completed by scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX) for the analysis of the element composition of the whole sample consisting of the NPs and the amorphous background. The bottom-up approaches resulted in crystalline FeAl NPs on an amorphous background. The top-down approach revealed small NPs and could be identified as Fe4Al13 NPs which in the IL [OPy][NTf2] yield two absorption bands in the green-blue to green spectral region at 475 and 520 nm which give rise to a complementary red color, akin to appropriate Au NPs. © 2020 The Royal Society of Chemistry.