| 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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Svedström, Kirsi
University of Helsinki
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2023Combined X-ray diffraction tomography imaging of tension and opposite wood tissues in young hybrid aspen saplingscitations
- 2022Near-infrared analysis of nanofibrillated cellulose aerogel manufacturingcitations
- 2021Visualizing Degradation of Cellulose Nanofibers by Acid Hydrolysiscitations
- 2021Visualizing Degradation of Cellulose Nanofibers by Acid Hydrolysiscitations
- 2020Ultrastructural X-ray scattering studies of tropical and temperate hardwoods used as tonewoodscitations
- 2019Sustainable High Yield Route to Cellulose Nanocrystals from Bacterial Cellulosecitations
- 2019Coded Acoustic Microscopy to Study Wood Mechanics and Developmentcitations
- 2015Comparison of the structure and flexural properties of Moso, Guadua and Tre Gai bamboocitations
- 2009Poly(ethylene imine) and Tetraethylenepentamine as Protecting Agents for Metallic Copper Nanoparticlescitations
- 2008Nanocomposites of magnetic cobalt nanoparticles and cellulosecitations
Places of action
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article
Nanocomposites of magnetic cobalt nanoparticles and cellulose
Abstract
Polymeric matrices with stabilized metallic nanoparticles constitute an important class of nanostructured materials, because polymer technology allows fabrication of components with various electronic, magnetic and mechanical properties. The porous cellulose matrix has been shown to be a useful support material for platinum, palladium, silver, copper and nickel nanoparticles. In the present study, nanosized cobalt particles with enhanced magnetic properties were made by chemical reduction within a microcrystalline cellulose (MCC) matrix. Two different chemical reducers, NaBH4 and NaH2PO2, were used, and the so-formed nanoparticles were characterized with X-ray absorption spectroscopy, X-ray diffraction, scanning electron microscopy and transmission electron microscopy. These experimental techniques were used to gain insight into the effect of different synthesis routes on structural properties of the nanoparticles. Magnetic properties of the nanoparticles were studied using a vibrating sample magnetometer. Particles made via the NaBH4 reduction were amorphous Co-B or Co oxide composites with diminished ferromagnetic behaviour and particles made via the NaH2PO2 reduction were well-ordered ferromagnetic hcp cobalt nanocrystals.