Science et Technique
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[conférence] Matériaux fonctionnels – Revêtements et traitements de surface

[conférence] Matériaux fonctionnels – Revêtements et traitements de surface | Science et Technique | Scoop.it
La fonctionnalisation des surfaces est un formidable moteur de R&D car les défis à relever sont multiples et les enjeux technologiques comme économiques colossaux.
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La dépollution du sol par les plantes testée en France

La dépollution du sol par les plantes testée en France | Science et Technique | Scoop.it
Certaines plantes peuvent extraire du sol les métaux lourds qu'il contient : c'est la phytoremédiation. Le procédé est connu mais pas si simple : il faut choisir les bons végétaux, qui accumulent ces atomes avec une efficacité étonnante.
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First measurement of thermoelectric properties of single magnetic domain wall

Magnetic nanostructures -- or rather: the interaction between charge, spin and current flow as a function of a temperature gradient in such structures -- this is what the fast growing research area named "spin caloritronics" deals with.
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Scientists demonstrate how to improve ultrathin CIGSe solar cells by nanoparticles

CIGSe solar cells are made of a thin chalcopyrite layer consisting of copper, indium, gallium and selenium and can reach high efficiencies.
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New graphene based inks for high-speed manufacturing of printed electronics

A low-cost, high-speed method for printing graphene inks using a conventional roll-to-roll printing process, like that used to print newspapers and crisp packets, could open up a wide range of practical applications, including inexpensive printed...
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Turning up the heat: Holey metamaterials enhance thermal energy harvesting

It's estimated that the U.S. fails to use more than half of the energy it generates -- mostly because it escapes as waste heat. Scientists are now developing a new type of system to efficiently capture some of that lost heat.
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'Molecular accordion' drives thermoelectric behavior in promising material

Engines, laptops and power plants generate waste heat. Thermoelectric materials, which convert temperature gradients to electricity and vice versa, can recover some of that heat and improve energy efficiency.
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To infinity and beyond: Light goes infinitely fast with new on-chip material

To infinity and beyond: Light goes infinitely fast with new on-chip material | Science et Technique | Scoop.it
Electrons are so 20th century. In the 21st century, photonic devices, which use light to transport large amounts of information quickly, will enhance or even replace the electronic devices that are ubiquitous in our lives today.
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GRID : nouveau répertoire international d’organismes de recherche

GRID : nouveau répertoire international d’organismes de recherche | Science et Technique | Scoop.it

‘Digital Science’ (une division du groupe  éditorial américain Holtzbrinck) a ouvert, ce 12/10/15, une nouvelle base de données en accès libre « Global Research Identifier Database » (GRID) qui répertorie les institutions et organismes de recherche dans le monde. Lien

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Nanoelectronics could get a boost from carbon research

Scientists have investigated a way to create linear chains of carbon atoms from laser-melted graphite.
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En bref : Production de phosphore grâce à des piles à combustibles microbiennes - Couplage de nanotubes de carbone et de cristal photonique (Energie et envrionnement)

En bref : Production de phosphore grâce à des piles à combustibles microbiennes - Couplage de nanotubes de carbone et de cristal photonique (Energie et envrionnement) | Science et Technique | Scoop.it
= Production de phosphore grâce à des piles à combustibles microbiennes Un groupe de recherche du River Basin Research Center de l'université de Gifu [2] a annoncé avoir réussi à récupérer du phosphore avec des piles à combustibles microbiennes...
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Unusual electronic state found in new class of unconventional superconductors

Unusual electronic state found in new class of unconventional superconductors | Science et Technique | Scoop.it
Scientists have discovered an unusual form of electronic order in a new family of unconventional superconductors, giving scientists a new group of materials to explore to understand the ability to carry current with no energy loss.
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Composite materials can be designed in a supercomputer 'virtual lab'

Composite materials can be designed in a supercomputer 'virtual lab' | Science et Technique | Scoop.it
Scientists have shown how advanced computer simulations can be used to design new composite materials. Nanocomposites, which are widely used in industry, are revolutionary materials in which microscopic particles are dispersed through plastics.
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Super-slick material makes steel better, stronger, cleaner

Now, researchers have demonstrated a way to make steel stronger, safer and more durable.
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New Method Turns Tons of Wine Waste into Useful Chemicals

New Method Turns Tons of Wine Waste into Useful Chemicals | Science et Technique | Scoop.it
Innovative biorefinery transforms five million tons of grape skins into preservatives, sugars and methane
-- Read more on ScientificAmerican.com
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IBM’s Carbon Nanotube Advancement Offers New Hope for Replacing Silicon

IBM’s Carbon Nanotube Advancement Offers New Hope for Replacing Silicon | Science et Technique | Scoop.it
For decades the semiconductor industry has been packing more and more silicon transistors onto each computer chip to keep steadily improving performance, but that process will soon reach its physical limits.

Via Dr. Stefan Gruenwald
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Is black phosphorus the next big thing in materials?

Researchers have confirmed that single-crystal black phosphorous nanoribbons display a strong in-plane anisotropy in thermal conductivity, an experimental revelation that should facilitate the future application of this highly promising material to...
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Mixing Two Incompatible Chemicals in One Pot

Mixing Two Incompatible Chemicals in One Pot | Science et Technique | Scoop.it
New method—using water reactions to keep substances apart—could speed creation of important industrial compounds
-- Read more on ScientificAmerican.com
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Surfing water molecules could hold key to fast, controllable water transport

Scientists have identified a new and potentially faster way of moving molecules across the surfaces of certain materials. The team carried out sophisticated computer simulations of tiny droplets of water as they interact with graphene surfaces.
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Magnetically controlled battery could store energy for power grids

Magnetically controlled battery could store energy for power grids | Science et Technique | Scoop.it
Scientists have built a battery containing a magnetic fluid that can be moved in any direction by applying a magnetic field.
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Electronics get a power boost with the addition of a simple material

The tiny transistor is the heart of the electronics revolution, and materials scientists have just discovered a way to give this workhorse a big boost, using a new technique to incorporate vanadium oxide -- a functional oxide -- into the electronic...
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Boeing invente un métal fait à 99,99 % d'air - Sciences - Numerama

Boeing invente un métal fait à 99,99 % d'air - Sciences - Numerama | Science et Technique | Scoop.it
Qui d'autre qu'un constructeur d'avion pour concevoir un métal léger comme l'air, ou presque ?
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Nanocircuitry grown with semiconducting graphene nanoribbons

Researchers are the first to grow self-directed graphene nanoribbons on the surface of the semiconducting material germanium. This allows the semiconducting industry to tailor specific paths for nanocircuitry in their technologies.
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Des avancées sur les matériaux supraconducteurs à température ambiante (Matériaux)

Des avancées sur les matériaux supraconducteurs à température ambiante (Matériaux) | Science et Technique | Scoop.it
Des chercheurs de l'Institut Max Planck pour la structure et la dynamique des matériaux de Hambourg (MPSD) sont parvenus à obtenir un comportement supraconducteur sans refroidissement avec des cristaux d'oxyde mixte de baryum de cuivre et d'yttrium...
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The gold standard: Affordable catalyst for energy and environmental applications

The gold standard: Affordable catalyst for energy and environmental applications | Science et Technique | Scoop.it
New nanoscale computational modeling predicts gold could be an effective and affordable catalyst for energy and environmental applications.
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