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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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Petit, Christophe
University of Birmingham
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024Malleable Commitments from Group Actions and Zero-Knowledge Proofs for Circuits based on Isogeniescitations
- 2023Influence of the nanocrystallinity on exchange bias in Co/CoO core/shell nanoparticlescitations
- 2021One-way functions and malleability oraclescitations
- 2021Magnetic Self-Assembling of spherical Co nanoparticles used as building blocks: Syntheses, properties and theorycitations
- 2018Binary superlattices from Fe2O3 magnetic nanocrystals and {Mo132} polyoxometalates: Long-range ordering and modulation of dipolar magnetic interactions
- 2016Mechanical behavior of asphalt mixture based on X-ray computed tomography images and random generation of aggregates skeletoncitations
- 2016Numerical simulation of local temperature evolution in bituminous materials under cyclic loadingcitations
- 20168th RILEM International Conference on Mechanisms of Cracking and Debonding in Pavementscitations
- 2015Role of the nanocrystallinity on the chemical ordering of Co x Pt 100-x nanocrystals synthesized by wet chemistrycitations
- 2014Synthesis of tin nanocrystals in room temperature ionic liquidscitations
- 2014Synthesis of tin nanocrystals in room temperature ionic liquidscitations
- 2012Finite element model for crack growth process in concrete bituminouscitations
- 2011Experimental investigation of tack coat fatigue performance: Towards an improved lifetime assessment of pavement structure interfacescitations
- 2008Finite element modeling of fatigue shear tests: Contribution to pavement lifetime design under traffic loading
- 2007Accelerated pavement testing and modeling of reflective cracking in pavementscitations
Places of action
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article
Synthesis of tin nanocrystals in room temperature ionic liquids
Abstract
The aim of this work was to investigate the synthesis of tin nanoparticles (NPs) or tin/carbon composites, in room temperature ionic liquids (RTILs), that could be used as structured anode materials for Li-ion batteries. An innovative route for the synthesis of Sn nanoparticles in such media is successfully developed. Compositions, structures, sizes and morphologies of NPs were characterized by high-energy X-ray diffraction (HEXRD), X-ray photoelectron spectroscopy (XPS) and high-resolution transmission electron microscopy (HRTEM). Our findings indicated that (i) metallic tetragonal β-Sn was obtained and (ii) the particle size could be tailored by tuning the nature of the RTILs, leading to nano-sized spherical particles with a diameter ranging from 3 to 10 nm depending on synthesis conditions. In order to investigate carbon composite materials for Li-ion batteries, Sn nanoparticles were successfully deposited on the surface of multi-wall carbon nanotubes (MWCNT). Moreover, electrochemical properties have been studied in relation to a structural study of the nanocomposites. The poor electrochemical performances as a negative electrode in Li-ion batteries is due to a significant amount of RTIL trapped within the pores of the nanotubes as revealed by XPS investigations. This dramatically affected the gravimetric capacity of the composites and limited the diffusion of lithium. The findings of this work however offer valuable insights into the exciting possibilities for synthesis of novel nano-sized particles and/or alloys (e.g. Sn-Cu, Sn-Co, Sn-Ni, etc.) and the importance of carbon morphology in metal pulverization during the alloying/dealloying process as well as prevention of ionic liquid trapping.