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Wood to Supercapacitors

Electrode materials from ultrathin carbon nanofiber aerogels derived from cellulose

25-May-2018

Carbon aerogels are ultralight, conductive materials, which are extensively investigated for applications in supercapacitor electrodes in electrical cars and cell phones. Chinese scientists have now found a way to make these electrodes sustainably. The aerogels can be obtained directly from ...

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Controlled Nano-Assembly

Universal pH regulated assembly of DNA nanostructures

24-May-2018

DNA, the carrier of genetic information, has become established as a highly useful building material in nanotechnology. One requirement in many applications is the controlled, switchable assembly of nanostructures. Scientists have now introduced a new strategy for control through altering pH ...

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Technique doubles conversion of CO2 to plastic component

24-May-2018

Fossil fuels have long been the precursor to plastic, but new research from the University of Nebraska-Lincoln and European collaborators could help send that era up in smoke - carbon dioxide, to be exact. Produced almost entirely from burning fossil fuels, carbon dioxide concentrations in the ...

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3D X-rays measure particle movement inside lithium ion batteries

23-May-2018

Lithium ion batteries have come a long way since their introduction in the late 1990s. They're used in many everyday devices, such as laptop computers, mobile phones, and medical devices, as well as automotive and aerospace platforms, and others. However, lithium ion battery performance still can ...

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Flexible, highly efficient multimodal energy harvesting

23-May-2018

A 10-fold increase in the ability to harvest mechanical and thermal energy over standard piezoelectric composites may be possible using a piezoelectric ceramic foam supported by a flexible polymer support, according to Penn State researchers. In the search for ways to harvest small amounts of ...

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Soft machines

A fast, low-voltage actuator for soft and wearable robotics

23-May-2018

In the world of robotics, soft robots are the new kids on the block. The unique capabilities of these automata are to bend, deform, stretch, twist or squeeze in all the ways that conventional rigid robots cannot. Today, it is easy to envision a world in which humans and robots collaborate -- in ...

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A green approach to making ammonia could help feed the world

18-May-2018

A UCF research team with collaborators at Virginia Tech have developed a new "green" approach to making ammonia that may help make feeding the rising world population more sustainable. "This new approach can facilitate ammonia production using renewable energy, such as electricity generated from ...

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Making carbon nanotubes as usable as common plastics

17-May-2018

Northwestern University's Jiaxing Huang is ready to reignite carbon nanotube research. And he's doing so with a common chemical that was once used in household cleaners. By using an inexpensive, already mass produced, simple solvent called cresol, Huang has discovered a way to make disperse ...

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Team achieves two-electron chemical reactions using light energy, gold

16-May-2018

Scientists are one step closer to building a carbon-recycling system that can harvest solar energy to efficiently convert CO2 and water into liquid fuels. By optimizing many parts of the system, the researchers say, they can now drive two-electron chemical reactions, a substantial advance over ...

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X-rays from tabletop lasers allows scientists to peer through the 'water window'

16-May-2018

Studying the fleeting actions of electrons in organic materials will now be much easier, thanks to a new method for generating fast X-rays. The technique means advanced measurements of fast reactions will now be possible in physics labs around the world, without having to wait to use expensive ...

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