Avis d'Expert - Les nanomatériaux : quel devenir au sein des produits en fin de vie ?
Le cabinet Ecogeos s'est penché sur le devenir des nanomatériaux arrivés en fin de vie. Leur comportement au sein des filières de traitement (incinérateur ou station d'épuration) sont insuffisamment connus. Détails avec Victoria Vancauwenberghe.
Affichage des articles dont le libellé est Nanomatériaux. Afficher tous les articles
Affichage des articles dont le libellé est Nanomatériaux. Afficher tous les articles
Large-area graphene membrane can separate gas mixtures - Materials Today
Large-area graphene membrane can separate gas mixtures - Materials Today
Chemical engineers at the Ecole Polytechnique Federale de Lausanne (EPFL) in Switzerland have demonstrated for the first time that an atom-thick graphene membrane can separate gas mixtures with a high-efficiency. This ‘ultimate’ membrane, reported in a paper in Nature Communications, is scalable, making it a breakthrough for industrial gas separation.
Chemical engineers at the Ecole Polytechnique Federale de Lausanne (EPFL) in Switzerland have demonstrated for the first time that an atom-thick graphene membrane can separate gas mixtures with a high-efficiency. This ‘ultimate’ membrane, reported in a paper in Nature Communications, is scalable, making it a breakthrough for industrial gas separation.
Selon sa forme, le graphène est 10 fois plus résistant que l'acier - 3Dnatives
Selon sa forme, le graphène est 10 fois plus résistant que l'acier - 3Dnatives
Une équipe de chercheurs de l’Institut Technologique du Massachusetts (MIT) a réalisé des expériences sur l’un des matériaux les plus résistants et légers, le graphène, qui est une forme de carbone. En le compressant, ils ont réussi à obtenir un nouveau matériau d’une densité de 5% et d’une solidité 10 fois plus élevée que celle de l’acier
Une équipe de chercheurs de l’Institut Technologique du Massachusetts (MIT) a réalisé des expériences sur l’un des matériaux les plus résistants et légers, le graphène, qui est une forme de carbone. En le compressant, ils ont réussi à obtenir un nouveau matériau d’une densité de 5% et d’une solidité 10 fois plus élevée que celle de l’acier
Groupement de recherche sur les nanoparticules d'or
Groupement de recherche sur les nanoparticules d'or
Nouveauté : Discussion "Nanoparticules et Biocapteurs"
Spectroscopie optique nonlinéaire appliquée Spectroscopie optique nonlinéaire appliquée aux nanoparticules d'or fonctionnalisées : En route vers les biocapteursC.Humbert, L. Dalstein, E. Durbize, B. Busson...pdf
Journée du GdR Or Nano 18 Octobre 2011
Table ronde n°1 : Synthèse et Fonctionnalisation Claire-Marie Pradier (LRS)...pdf
Pour en savoir plus :
- 3 films dont celui réalisé au Laboratoire de Réactivité de Surface (CNRS –Université Pierre et Marie Curie).
- Consulter le dossier de la banque des savoirs de l’Essonne : Nanotechnologies : la ruée vers l’or.Les experts de ce dossier sont membres du GdR Or-nano.
- Consulter la rubrique " Nanosciences pour tous " du centre de compétence Nanosciences C’Nano Ile-de-France.
- Consulter le dossier de presse "Nanosciences : la ruée vers l'or"
- Découvrir la banque d’images du GdR
Conductive Ink Markets 2016-2026: Forecasts, Technologies, Players: IDTechEx
Conductive Ink Markets 2016-2026: Forecasts, Technologies, Players: IDTechEx
Silver flake, silver nanoparticles, copper inks and pastes, graphene and beyond By Dr Khasha Ghaffarzadeh, Mr Yasuo Yamamoto and Dr Harry Zervos
Silver flake, silver nanoparticles, copper inks and pastes, graphene and beyond By Dr Khasha Ghaffarzadeh, Mr Yasuo Yamamoto and Dr Harry Zervos
5th International Conference on Multifunctional, Hybrid and Nanomaterials, 6-10 March 2017, Lisbon, Portugal - Materials Today
5th International Conference on Multifunctional, Hybrid and Nanomaterials, 6-10 March 2017, Lisbon, Portugal - Materials Today
Please submit your abstract for oral and/or poster presentation by Friday 16 September 2016.
Please submit your abstract for oral and/or poster presentation by Friday 16 September 2016.
New nanomaterial mimics cell membranes | KurzweilAI
New nanomaterial mimics cell membranes | KurzweilAI
Applications include water purification, fuel cells, and selective drug delivery
Haibao Jin, Fang Jiao, Michael D. Daily, Yulin Chen, Feng Yan, Yan-Huai Ding, Xin Zhang, Ellen J. Robertson, Marcel D. Baer, Chun-Long Chen. Highly stable and self-repairing membrane-mimetic 2D nanomaterials assembled from lipid-like peptoids. Nature Communications, 2016; 7: 12252 DOI: 10.1038/ncomms12252 (open access)
Applications include water purification, fuel cells, and selective drug delivery
Haibao Jin, Fang Jiao, Michael D. Daily, Yulin Chen, Feng Yan, Yan-Huai Ding, Xin Zhang, Ellen J. Robertson, Marcel D. Baer, Chun-Long Chen. Highly stable and self-repairing membrane-mimetic 2D nanomaterials assembled from lipid-like peptoids. Nature Communications, 2016; 7: 12252 DOI: 10.1038/ncomms12252 (open access)
Graphène : l'électronique du futur en couche monoatomique | Laëticia Marty | TEDxArtsEtMétiersParis
Graphène : l'électronique du futur en couche monoatomique | Laëticia Marty TEDxArtsEtMétiersParis
Devenue chercheur après une formation d’ingénieur et un doctorat en Physique, Laëtitia mène ses recherches sur les nanotubes et le graphène à l’Institut Néel (CNRS-UGA). Depuis 10 ans, elle explore les apports des matériaux de basse dimensionnalité pour la nanoélectronique et l’optoélectronique.
Aujourd’hui, elle s’implique dans la maturation de la start-up GRAPHEAT Solutions pour porter des applications du graphène dans la vie courante.
Ce colloque est pour elle une occasion de croiser industrie et recherche, car l’industrie du futur germe aussi dans les labos.
Consultez son profil complet sur http://tedxartsetmetiers.com/speaker-...
« Nanotechnologies pour une ville intelligente », Par Bérengère Lebental, chercheuse à l'X
Devenue chercheur après une formation d’ingénieur et un doctorat en Physique, Laëtitia mène ses recherches sur les nanotubes et le graphène à l’Institut Néel (CNRS-UGA). Depuis 10 ans, elle explore les apports des matériaux de basse dimensionnalité pour la nanoélectronique et l’optoélectronique.
Aujourd’hui, elle s’implique dans la maturation de la start-up GRAPHEAT Solutions pour porter des applications du graphène dans la vie courante.
Ce colloque est pour elle une occasion de croiser industrie et recherche, car l’industrie du futur germe aussi dans les labos.
Consultez son profil complet sur http://tedxartsetmetiers.com/speaker-...
« Nanotechnologies pour une ville intelligente », Par Bérengère Lebental, chercheuse à l'X
Bérengère Lebental, chercheuse au Laboratoire de Physique des Interfaces et Couches Minces de l'École polytechnique (en co-tutelle avec le CNRS), coordinatrice de l'Equipex Sense-City de l'IFSTTAR présente "Nanotechnologies pour une ville intelligente" à l'occasion de la 7e édition des Jeudis de la Recherche de l'X le 2 avril 2015.
New OLED design displays promise of graphene electrodes - Materials Today
New OLED design displays promise of graphene electrodes - Materials Today
A Korean research team has developed highly flexible organic light-emitting diodes (OLEDs) with excellent efficiency by using graphene as a transparent electrode (TE) placed between layers of titanium dioxide (TiO2) and a conducting polymer. Led by Seunghyup Yoo from the Korea Advanced Institute of Science and Technology (KAIST) and Tae-Woo Lee from Pohang University of Science and Technology (POSTECH), the team published its results in Nature Communications.
A Korean research team has developed highly flexible organic light-emitting diodes (OLEDs) with excellent efficiency by using graphene as a transparent electrode (TE) placed between layers of titanium dioxide (TiO2) and a conducting polymer. Led by Seunghyup Yoo from the Korea Advanced Institute of Science and Technology (KAIST) and Tae-Woo Lee from Pohang University of Science and Technology (POSTECH), the team published its results in Nature Communications.
Actualité > Des panneaux solaires ultra-efficaces grâce à des nanotubes de carbone
Actualité > Des panneaux solaires ultra-efficaces grâce à des nanotubes de carbone
Des chercheurs du Massachusetts Institute of Technology (MIT), aux États-Unis, ont annoncé avoir amélioré le rendement d’une cellule photovoltaïque des plus classiques. Comment ? Grâce à une association de matériaux high-tech composée de cristaux nanophotoniques et de nanotubes de carbone capable de convertir la chaleur solaire en rayonnement efficace pour la cellule photovoltaïque.
Le 31/05/2016 à 15:34 - Nathalie Mayer, Futura-Sciences
Des chercheurs du Massachusetts Institute of Technology (MIT), aux États-Unis, ont annoncé avoir amélioré le rendement d’une cellule photovoltaïque des plus classiques. Comment ? Grâce à une association de matériaux high-tech composée de cristaux nanophotoniques et de nanotubes de carbone capable de convertir la chaleur solaire en rayonnement efficace pour la cellule photovoltaïque.
Le 31/05/2016 à 15:34 - Nathalie Mayer, Futura-Sciences
Evaluation of rheological behavior and performance to permanent deformation of nanomodified asphalt mixtures with carbon nanotubes - Canadian Journal of Civil Engineering
Evaluation of rheological behavior and performance to permanent deformation of nanomodified asphalt mixtures with carbon nanotubes - Canadian Journal of Civil Engineering
Evaluation of rheological behavior and performance to permanent deformation of nanomodified asphalt mixtures with carbon nanotubes, João Victor Staub de Melo, Glicério Trichês,Canadian Journal of Civil Engineering, 2016, 43:472-479, 10.1139/cjce-2015-0546
Abstract:
Rutting is one of the most important issues associated with asphalt pavements. This defect leads to the accelerated degradation of the pavement and considerably reduces the level of road safety. This paper reports on the results obtained in the optimization of nanocomposite asphalt containing carbon nanotubes (CNTs) with regard to the resistance to permanent deformation. Nanocomposite asphalts were prepared with the addition of different proportions of CNTs. Based on a study on the empirical and rheological properties of the nanocomposites developed, optimization of the CNT content incorporated into the conventional asphalt binder was carried out. Then two asphalt mixtures were investigated, a reference mixture and a nanomodified mixture with CNTs (optimal content). The rheological evaluations were carried out on four-point fatigue equipment and the resistance to permanent deformation was tested in a traffic simulator (wheel tracking test). The results demonstrate the efficient contribution of the nanocomposite to the resistance to permanent deformation. © 2016, National Research Council of Canada. All rights reserved.(35 refs)
Evaluation of rheological behavior and performance to permanent deformation of nanomodified asphalt mixtures with carbon nanotubes, João Victor Staub de Melo, Glicério Trichês,Canadian Journal of Civil Engineering, 2016, 43:472-479, 10.1139/cjce-2015-0546
Artificial optical nanostructure outperforms butterfly wings - physicsworld.com
Artificial optical nanostructure outperforms butterfly wings - physicsworld.com
An artificial material with the eye-catching optical properties of the Callophrys rubi butterfly has been created by researchers in Australia. Using a special lithography technique, the team was able to make photonic "gyroid" nanostructures similar to those found in the butterfly's wings. The artificial structures, which outperform their natural counterpart in many ways, could find use in a variety of photonics and optics technologies.
An artificial material with the eye-catching optical properties of the Callophrys rubi butterfly has been created by researchers in Australia. Using a special lithography technique, the team was able to make photonic "gyroid" nanostructures similar to those found in the butterfly's wings. The artificial structures, which outperform their natural counterpart in many ways, could find use in a variety of photonics and optics technologies.
Hierarchical Assemblies of Carbon Nanotubes for Ultraflexible Li-Ion Batteries - Ahmad - 2016 - Advanced Materials - Wiley Online Library
Hierarchical Assemblies of Carbon Nanotubes for Ultraflexible Li-Ion Batteries - Ahmad - 2016 - Advanced Materials - Wiley Online Library
The flexible batteries that are needed to power flexible circuits and displays remain challenging, despite considerable progress in the fabrication of such devices. Here, it is shown that flexible batteries can be fabricated using arrays of carbon nanotube microstructures, which decouple stress from the energy-storage material. It is found that this battery architecture imparts exceptional flexibility (radius ≈ 300 μm), high rate (20 A g−1), and excellent cycling stability.
The flexible batteries that are needed to power flexible circuits and displays remain challenging, despite considerable progress in the fabrication of such devices. Here, it is shown that flexible batteries can be fabricated using arrays of carbon nanotube microstructures, which decouple stress from the energy-storage material. It is found that this battery architecture imparts exceptional flexibility (radius ≈ 300 μm), high rate (20 A g−1), and excellent cycling stability.
Silicon Nanoparticles Pave The Way Towards Nanoscale Light Emitters
Silicon Nanoparticles Pave The Way Towards Nanoscale Light Emitters
Scientists from Moscow Institute of Physics and Technology (MIPT), ITMO University (St Petersburg), and their colleagues from the Australian National University have experimentally demonstrated that silicon nanoparticles are able to significantly increase the intensity of what is known as the Raman effect.
Scientists from Moscow Institute of Physics and Technology (MIPT), ITMO University (St Petersburg), and their colleagues from the Australian National University have experimentally demonstrated that silicon nanoparticles are able to significantly increase the intensity of what is known as the Raman effect.
Graphene nanoflakes take the heat off advanced electronic devices - Materials Today
Graphene nanoflakes take the heat off advanced electronic devices - Materials Today
Heat dissipation is a severe bottleneck in the development of advanced electronic and optoelectronic devices. To get to grips with this issue, scientists at Chalmers University of Technology in Sweden, as part of an international team of researchers, have developed an efficient way of cooling electronics with functionalized graphene nanoflakes. Their results are published in Nature Communications.
Heat dissipation is a severe bottleneck in the development of advanced electronic and optoelectronic devices. To get to grips with this issue, scientists at Chalmers University of Technology in Sweden, as part of an international team of researchers, have developed an efficient way of cooling electronics with functionalized graphene nanoflakes. Their results are published in Nature Communications.
BNL Newsroom | Visualizing the Lithiation of a Nanosized Iron-Oxide Material in Real Time
BNL Newsroom | Visualizing the Lithiation of a Nanosized Iron-Oxide Material in Real Time
Electron microscopy technique reveals the reaction pathways that emerge as lithium ions are added to magnetite nanoparticles
Major graphene exhibition to open in Manchester
Major graphene exhibition to open in Manchester
The exhibition is created by the Museum of Science and Industry in partnership with the National Graphene Institute at The University of Manchester. It is a flagship event of Manchester’s programme as European City of Science 2016 and opens to coincide with the EuroScience Open Forum Manchester 2016 (23-27 July), Europe’s largest interdisciplinary science meeting. The exhibition is sponsored by Haydale, who enable technology for the commercialisation of graphene and other nanomaterials
The exhibition is created by the Museum of Science and Industry in partnership with the National Graphene Institute at The University of Manchester. It is a flagship event of Manchester’s programme as European City of Science 2016 and opens to coincide with the EuroScience Open Forum Manchester 2016 (23-27 July), Europe’s largest interdisciplinary science meeting. The exhibition is sponsored by Haydale, who enable technology for the commercialisation of graphene and other nanomaterials
TI, Infineon et Intel, trio de tête du marché des semi-conducteurs pour l’industriel – L'Embarqué
TI, Infineon et Intel, trio de tête du marché des semi-conducteurs pour l’industriel – L'Embarqué
Selon Semicast Research, le marché des semi-conducteurs pour l’industriel – un terme qui recouvre des domaines aussi divers que l’automatisation des usines, la commande moteur, l’éclairage industriel, les bâtiments intelligents, le test et la mesure, l’électricité et l’énergie, l’électronique médicale et les transports industriels – a atteint la valeur de 40,7 milliards de dollars en 2015.
Selon Semicast Research, le marché des semi-conducteurs pour l’industriel – un terme qui recouvre des domaines aussi divers que l’automatisation des usines, la commande moteur, l’éclairage industriel, les bâtiments intelligents, le test et la mesure, l’électricité et l’énergie, l’électronique médicale et les transports industriels – a atteint la valeur de 40,7 milliards de dollars en 2015.
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