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3D-printed aerogels improve energy storage

April 23, 2015 8:03 am | by Anne M. Stark, Lawrence Livermore National Laboratory | News | Comments

A new type of graphene aerogel will make for better energy storage, sensors, nanoelectronics, catalysis and separations. Lawrence Livermore National Laboratory researchers have made graphene aerogel microlattices with an engineered architecture via a 3D printing technique known as direct ink writing.

Electron spin brings order to high entropy alloys

April 22, 2015 10:01 am | by Matt Shipman, News Services, North Carolina State Univ. | News | Comments

Researchers from North Carolina State Univ. have discovered that electron spin brings a previously unknown degree of order to the high entropy alloy nickel iron chromium cobalt (NiFeCrCo), and may play a role in giving the alloy its desirable properties.

Expanding the reach of metallic glass

April 22, 2015 9:53 am | by Jim Shelton, Yale Univ. | News | Comments

Metallic glass, a class of materials that offers both pliability and strength, is poised for a friendly takeover of the chemical landscape. Yale Univ. engineers have found a unique method for designing metallic glass nanostructures across a wide range of chemicals. The process will enable the fabrication of an array of new materials, with applications for everything from fuel cells to biological implants.

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“Holey” graphene for energy storage

April 22, 2015 8:32 am | by Liezel Labios, Univ. of California, San Diego | News | Comments

Engineers at the Univ. of California, San Diego have discovered a method to increase the amount of electric charge that can be stored in graphene. The research may provide a better understanding of how to improve the energy storage ability of capacitors for potential applications in cars, wind turbines and solar power.

Phonons, arise!

April 22, 2015 8:16 am | by Neal Singer, Sandia National Laboratories | News | Comments

Modern research has found no simple, inexpensive way to alter a material’s thermal conductivity at room temperature. That lack of control has made it hard to create new classes of devices that use phonons, rather than electrons or photons, to harvest energy or transmit information. Phonons have proved hard to harness.

Invisible inks could help foil counterfeiters of all kinds

April 22, 2015 7:33 am | by Megan Fellman, Northwestern Univ. | News | Comments

Real or counterfeit? Northwestern Univ. scientists have invented sophisticated fluorescent inks that one day could be used as multicolored barcodes for consumers to authenticate products that are often counterfeited. Snap a photo with your smartphone, and it will tell you if the item is real and worth your money.

Electron trapping harnessed to make light sensors

April 21, 2015 10:34 am | by Mark Esser, NIST | News | Comments

Traps. Whether you’re squaring off against the Empire or trying to wring electricity out of sunlight, they’re almost never a good thing. But sometimes you can turn that trap to your advantage. A team from the Univ. of Nebraska-Lincoln, working with researchers at NIST, has shown that electron-trapping defects that are typically problematic in solar cells can be an asset when engineering sensitive light detectors.

Microalgae used for green asphalt

April 21, 2015 10:25 am | by CNRS | News | Comments

Microalgae offer a highly promising alternative to petroleum products without competing for resources used in the food industry. They have now been used, for the first time, to make asphalt. Researchers have recently proved the viability of bioasphalt, demonstrating its close similarity to the "real" asphalt used to pave roads.

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Deadline Extended for 2015 R&D 100 Award Entries

April 21, 2015 8:59 am | by Lindsay Hock, Editor | Award Winners

The editors of R&D Magazine have announced a deadline extension for the 2015 R&D 100 Awards entry process until May 18, 2015. The R&D 100 Awards have a 50 plus year history of awarding the 100 most technologically significant products of the year.

Deadline Extended for 2015 R&D 100 Award Entries

April 20, 2015 1:53 pm | by Lindsay Hock, Editor | News | Comments

The editors of R&D Magazine have announced a deadline extension for the 2015 R&D 100 Awards entry process until May 18, 2015. The R&D 100 Awards have a 50 plus year history of awarding the 100 most technologically significant products of the year.

Beyond the lithium ion

April 17, 2015 11:58 am | by Jeanne Galatzer-Levy, Univ. of Illinois, Chicago | News | Comments

The race is on around the world as scientists strive to develop a new generation of batteries that can perform beyond the limits of the current lithium-ion based battery. Researchers at the Univ. of Illinois at Chicago have taken a significant step toward the development of a battery that could outperform the lithium-ion technology used in electric cars such as the Chevy Volt.

Improving rechargeable batteries with MoS2 nano “sandwich”

April 17, 2015 9:00 am | by Jennifer Tidball, Kansas State Univ. | News | Comments

The key to better cell phones and other rechargeable electronics may be in tiny "sandwiches" made of nanosheets, according to mechanical engineering research from Kansas State Univ. The research team are improving rechargeable lithium-ion batteries. The team has focused on the lithium cycling of molybdenum disulfide, or MoS2, sheets, which Singh describes as a "sandwich" of one molybdenum atom between two sulfur atoms.

Major advance in artificial photosynthesis poses win-win for the environment

April 16, 2015 12:43 pm | by Lynn Yarris, Lawrence Berkeley National Laboratory | News | Comments

A potentially game-changing breakthrough in artificial photosynthesis has been achieved with the development of a system that can capture carbon dioxide emissions before they are vented into the atmosphere and then, powered by solar energy, convert that carbon dioxide into valuable chemical products, including biodegradable plastics, pharmaceutical drugs and even liquid fuels.

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Novel nanoparticles could save soldiers’ lives after explosions

April 16, 2015 8:11 am | by American Chemical Society | News | Comments

Soldiers who suffer internal trauma from explosions might one day benefit from a new treatment now under development. Researchers report in ACS Macro Letters that injecting a certain type of nanoparticle helped reduce lung damage in rats experiencing such trauma. The potential treatment, which could be given at the most critical moment immediately after a blast, could save lives.

Cobalt film a clean-fuel find

April 16, 2015 7:51 am | by Mike Williams, Rice Univ. | News | Comments

A cobalt-based thin film serves double duty as a new catalyst that produces both hydrogen and oxygen from water to feed fuel cells, according to scientists at Rice Univ. The inexpensive, highly porous material may have advantages as a catalyst for the production of hydrogen via water electrolysis. A single film far thinner than a hair can be used as both the anode and cathode in an electrolysis device.

Researchers create bio-inspired flame retardants

April 15, 2015 9:53 am | by NIST | News | Comments

After devising several new and promising "green" flame retardants for furniture padding, NIST researchers took a trip to the grocery store and cooked up their best fire-resistant coatings yet. As important, these protective coatings can be made in one straightforward step.

Nano-coated mesh could clean oil spills

April 15, 2015 9:24 am | by Pam Frost Gorder, Ohio State Univ. | News | Comments

The mesh coating is among a suite of nature-inspired nanotechnologies under development at Ohio State and described in two papers in Nature Scientific Reports. Potential applications range from cleaning oil spills to tracking oil deposits underground.

Nanotubes with two walls have singular qualities

April 15, 2015 8:21 am | by Mike Williams, Rice Univ. | News | Comments

Rice Univ. researchers have determined that two walls are better than one when turning carbon nanotubes into materials like strong, conductive fibers or transistors. Rice materials scientist Enrique Barrera and his colleagues used atomic-level models of double-walled nanotubes to see how they might be tuned for applications that require particular properties.

Long-sought magnetic mechanism observed in exotic hybrid materials

April 13, 2015 8:08 am | by Justin Eure, Brookhaven National Laboratory | News | Comments

Scientists have measured the subatomic intricacies of an exotic phenomenon first predicted more than 60 years ago. This so-called van Vleck magnetism is the key to harnessing the quantum quirks of topological insulators, and could lead to unprecedented electronics.

Material could boost batteries’ power, help power plants

April 13, 2015 7:43 am | by Paul Alongi, Clemson Univ. | News | Comments

You’re going to have to think very small to understand something that has the potential to be very big. A team of researchers developed a material that acts as a superhighway for ions. The material could make batteries more powerful, change how gaseous fuel is turned into liquid fuel and help power plants burn coal and natural gas more efficiently.

Plant cell structure discovery could lead to improved renewable materials

April 10, 2015 12:07 pm | by Univ. of Warwick | News | Comments

The step forward follows research by the Univs. of Warwick and Cambridge and the unexpected discovery of a previously unknown arrangement of molecules in plant cell walls. The researchers investigated the polymer xylan, which comprises a third of wood matter.

Chemists create nanoparticles that reflect nature’s patterns

April 10, 2015 7:55 am | by Jocelyn Duffy, Carnegie Mellon Univ. | News | Comments

Our world is full of patterns, from the twist of a DNA molecule to the spiral of the Milky Way. New research from Carnegie Mellon Univ. chemists has revealed that tiny, synthetic gold nanoparticles exhibit some of nature's most intricate patterns. Unveiling the kaleidoscope of these patterns was a Herculean task, and it marks the first time that a nanoparticle of this size has been crystallized and its structure mapped out atom by atom.

Research could usher in next generation of batteries, fuel cells

April 10, 2015 7:30 am | by Jeff Stensland, Univ. of South Carolina | News | Comments

Scientists have made a discovery that could dramatically improve the efficiency of batteries and fuel cells. The research involves improving the transport of oxygen ions, a key component in converting chemical reactions into electricity. The team studied a well-known material, gadolinium doped ceria, which transports oxygen ions and is currently in use as a solid-oxide fuel cell electrolyte.

Ordinary clay can save the day

April 9, 2015 11:12 am | by Norwegian Univ. of Science and Technology | News | Comments

Carbon capture will play a central role in helping the nations of the world manage and reduce their greenhouse gas emissions. Many materials are being tested for the purpose of capturing carbon dioxide. But now researchers led by the Norwegian Univ. of Science and Technology have found that ordinary clay can work just as effectively as more advanced materials.

Mixing up a batch of stronger metals

April 9, 2015 8:09 am | by Katie Bethea, Oak Ridge National Laboratory | News | Comments

Just as a delicate balance of ingredients determines the tastiness of a cookie or cake, the specific ratio of metals in an alloy determines desirable qualities of the new metal, such as improved strength or lightness. A new class of alloys, called high entropy alloys, is unique in that these alloys contain five or more elements mixed evenly in near equal concentrations and have shown exceptional engineering properties.

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