| People | Locations | Statistics |
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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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Kasama, Takeshi
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2019Electron holographycitations
- 2018Optimal microstructural design for high thermal stability of pure FCC metals based on studying effect of twin boundaries character and network of grain boundariescitations
- 2018Optimal microstructural design for high thermal stability of pure FCC metals based on studying effect of twin boundaries character and network of grain boundariescitations
- 2018Probing the chemistry of adhesion between a 316L substrate and spin-on-glass coatingcitations
- 2018Mechanisms of Se(IV) Co-precipitation with Ferrihydrite at Acidic and Alkaline Conditions and Its Behavior during Agingcitations
- 2018Magnetically activated microcapsules as controlled release carriers for a liquid PDMS cross-linkercitations
- 2018Transformation of iron containing constituent intermetallic particles during hydrothermal treatment
- 2017Mechanical properties of multilayer Ni-Fe and Ni-Fe-Al2O3 nanocomposite coatingcitations
- 2017Mechanical properties of multilayer Ni-Fe and Ni-Fe-Al 2 O 3 nanocomposite coatingcitations
- 2016Origin of Spontaneous Core-Shell AIGaAs Nanowires Grown by Molecular Beam Epitaxycitations
- 2015Influence of aging products on tensile deformation behavior of Al-0.62 mass%Mg-0.32 mass%Si alloycitations
- 2014Interferometric methods for mapping static electric and magnetic fieldscitations
- 2014Transmission electron microscopy of unstained hybrid Au nanoparticles capped with PPAA (plasma-poly-allylamine):Structure and electron irradiation effectscitations
- 2014Transmission electron microscopy of unstained hybrid Au nanoparticles capped with PPAA (plasma-poly-allylamine)citations
- 2014Off-axis electron holography of ferromagnetic multilayer nanowirescitations
- 20143D visualization of TiO2 nanocrystals in mesoporous nanocomposite using energy filtered transmission electron microscopy tomographycitations
- 2014Towards quantitative off-axis electron holographic mapping of the electric field around the tip of a sharp biased metallic needlecitations
- 2014Magnetic characterization of synthetic titanomagnetites: quantifying the recording fidelity of ideal synthetic analogscitations
- 2013Ferrimagnetic/ferroelastic domain interactions in magnetite below the Verwey transition. Part I: electron holography and Lorentz microscopycitations
- 2013Oxidation of Dodecanoate Intercalated Iron(II)–Iron(III) Layered Double Hydroxide to Form 2D Iron(III) (Hydr)oxide Layerscitations
- 2013Ferrimagnetic/ferroelastic domain interactions in magnetite below the Verwey transition: Part II. Micromagnetic and image simulationscitations
- 2011Formation process and superparamagnetic properties of (Mn,Ga)As nanocrystals in GaAs fabricated by annealing of (Ga,Mn)As layers with low Mn content
- 2011Formation process and superparamagnetic properties of (Mn,Ga)As nanocrystals in GaAs fabricated by annealing of (Ga,Mn)As layers with low Mn contentcitations
- 2011Spin reorientation in α-Fe2O3 nanoparticles induced by interparticle exchange interactions in alpha-Fe2O3/NiO nanocompositescitations
- 2011Voids and Mn-rich inclusions in a (Ga,Mn)As ferromagnetic semiconductor investigated by transmission electron microscopycitations
- 2010Direct observation of ferrimagnetic/ferroelastic domain interactions in magnetite below the Verwey transitioncitations
- 2010Interpretation of electron beam induced charging of oxide layers in a transistor studied using electron holographycitations
- 2010Nonadiabatic Spin Torque Investigated Using Thermally Activated Magnetic Domain Wall Dynamicscitations
- 2006Periodic inclusion of room-temperature-ferromagnetic metal phosphide nanoparticles in carbon nanotubescitations
Places of action
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conferencepaper
3D visualization of TiO2 nanocrystals in mesoporous nanocomposite using energy filtered transmission electron microscopy tomography
Abstract
Mesoporous silica, SBA-15, is one of the best candidate for the supporting material of catalytic nanoparticles because of its relative large and controllable pore size and large specific surface area [1]. So far, various nanoparticles, such as Au, Pt and Pd, have been introduced into the pore for catalytic application [2]. The size of nanoparticles supported inside SBA-15 is restricted by that of the pore, and they are usually ranging from 2 nm and 50 nm in space.It is necessary to anchor the nanoparticles within pores to avoid segregation / sintering of them. However, it is difficult to anchor them within pores in the case of use of deposition-precipitation method due to extreme low iso-electric point (IEP) of silica (∼2). Therefore, TiO2 nanocrystals (IEP 6-8) were then introduced to anchor AuNPs [3].In this study, EFTEM tomography was applied to examine the effectiveness of TiO2 for AuNPs. Materials and methodAu/TiO2-SBA-15 was embedded into epoxy resin for electron microscopy and microtomed to about 30 nm thickness. EFTEM-tomography was operated at 120 kV and using Ti-L ionization edge via three-window method. Prior to EFTEM, STEM-HAADF tomography was also carried out for visualizing AuNPs and for comparison. Result and discussionFigure 1 shows 3D-volume of AuNPs and TiO2 nanocrystals from EFTEM-tomography. TiO2 nanocrystals in the porous material were successfully visualized using EFTEM -tomography, and local relationship between AuNPs and TiO2 nanocrystals were revealed. A large number of TiO2 nanocrystals were randomly distributed in the SBA-15. It was found that most AuNPs were directly on the exposed TiO2 nanocrystals. It implies that TiO2 nanocrystals were exposed on the surface of the pore and anchored AuNPs inside the pores.jmicro;63/suppl_1/i27/DFU081F1F1DFU081F1Fig. 1.3D volume of AuNPs and TiO2 nanocrystals.