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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Houben, Lothar
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2024A Gd-doped ceria/TiOx nanocomposite as the active layer in a three terminal electrochemical resistivity switch.citations
- 2024W18O49 Nanowhiskers Decorating SiO2 Nanofibers: Lessons from In Situ SEM/TEM Growth to Large Scale Synthesis and Fundamental Structural Understandingcitations
- 2023W18O49 Nanowhiskers Decorating SiO2 Nanofiberscitations
- 2023Encapsulation of Uranium Oxide in Multiwall WS<sub>2</sub> Nanotubes
- 2022Polar Crystal Habit and 3D Electron Diffraction Reveal the Malaria Pigment Hemozoin as a Selective Mixture of Centrosymmetric and Chiral Stereoisomerscitations
- 2022Nanotubes from the Misfit Layered Compound (SmS)1.19TaS2citations
- 2022Nanotubes from the Misfit Layered Compound $(SmS)_{1.19}TaS_2$ : Atomic Structure, Charge Transfer, and Electrical Propertiescitations
- 2020Large lattice distortions and size-dependent bandgap modulation in epitaxial halide perovskite nanowirescitations
- 2020Large lattice distortions and size-dependent bandgap modulation in epitaxial halide perovskite nanowirescitations
- 2018Guided Growth of Horizontal ZnS Nanowires on Flat and Faceted Sapphire Surfacescitations
- 2018A Mechanistic Study of Phase Transformation in Perovskite Nanocrystals Driven by Ligand Passivationcitations
- 2016Tubular structures from the LnS–TaS₂ (Ln = La, Ce, Nd, Ho, Er) and LaSe–TaSe₂ misfit layered compoundscitations
- 2016From dilute isovalent substitution to alloying in CdSeTe nanoplateletscitations
- 2008Metadislocations in the orthorhombic structurally complex alloy Al13Co4citations
- 2006Atomic-resolution imaging of lattice imperfections in semiconductors by conjoined aberration-corrected HRTEM and exit-plane wavefunction retrievalcitations
- 2000Plasmaabscheidung von mikrokristallinem Silizium: Merkmale und Mikrostruktur und deren Deutung im Sinne von Wachstumsvorgängen
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article
W18O49 Nanowhiskers Decorating SiO2 Nanofibers: Lessons from In Situ SEM/TEM Growth to Large Scale Synthesis and Fundamental Structural Understanding
Abstract
Tungsten suboxide W18O49 nanowhiskers are a material of great interest due to their potential high-end applications in electronics, near-infrared light shielding, catalysis, and gas sensing. The present study introduces three main approaches for the fundamental understanding of W18O49 nanowhisker growth and structure. First, W18O49 nanowhiskers were grown from gamma-WO3/a-SiO2 nanofibers in situ in a scanning electron microscope (SEM) utilizing a specially designed microreactor (mu Reactor). It was found that irradiation by the electron beam slows the growth kinetics of the W18O49 nanowhisker, markedly. Following this, an in situ TEM study led to some new fundamental understanding of the growth mode of the crystal shear planes in the W18O49 nanowhisker and the formation of a domain (bundle) structure. High-resolution scanning transmission electron microscopy analysis of a cross-sectioned W18O49 nanowhisker revealed the well-documented pentagonal Magn & eacute;li columns and hexagonal channel characteristics for this phase. Furthermore, a highly crystalline and oriented domain structure and previously unreported mixed structural arrangement of tungsten oxide polyhedrons were analyzed. The tungsten oxide phases found in the cross section of the W18O49 nanowhisker were analyzed by nanodiffraction and electron energy loss spectroscopy (EELS), which were discussed and compared in light of theoretical calculations based on the density functional theory method. Finally, the knowledge gained from the in situ SEM and TEM experiments was valorized in developing a multigram synthesis of W18O49/a-SiO2 urchin-like nanofibers in a flow reactor.