Science

Overview: Science

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A revolution in lithium-ion batteries is becoming more realistic

21/09/2017

The modern world relies on portable electronic devices such as smartphones, tablets, laptops, cameras or camcorders. Many of these devices are powered by lithium-ion batteries, which could be smaller, lighter, safer and more efficient if the liquid electrolytes they contain were replaced by solids. A promising candidate for a solid-state electrolyte is a new class of materials based ...
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Defects in next-generation solar cells can be healed with light

21/09/2017

Researchers have shown that defects in the molecular structure of perovskites – a material which could revolutionize the solar cell industry – can be 'healed' by exposing it to light and just the right amount of humidity.
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More durable, less expensive fuel cells

21/09/2017

A team of engineers at UD has developed a technology that could make fuel cells cheaper and more durable. Hydrogen-powered fuel cells are a green alternative to internal combustion engines because they produce power through electrochemical reactions, leaving no pollution behind. Platinum is the most common catalyst in the type of fuel cells used in vehicles, but it's expensive. ...
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Water-based lithium-ion batteries without explosive risks now a reality

20/09/2017

Researchers at the University of Maryland and the US Army Research Laboratory have developed for the first time a lithium-ion battery that uses a water-salt solution as its electrolyte and reaches the 4.0 volt mark desired for household electronics, such as laptop computers, ...
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Stanford professor tests a cooling system that works without electricity

20/09/2017

Stanford scientists cooled water without electricity by sending excess heat where it won't be noticed – space. The specialized optical surfaces they developed are a major step toward applying this technology to air conditioning and refrigeration.
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Systematically studying slippery surfaces

19/09/2017

Polymer brushes are polymers grown on surfaces, and are attractive for use in lubrication and anti-fouling applications. Kyushu University researchers varied the length of the chain separating negatively and positively charged functional groups in polymer brushes to investigate how chain length affected the interaction of the polymer brushes with water. They found that the ...
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“Lasers in Composites Symposium” in Aachen – from Science to Application

19/09/2017

Fiber-reinforced plastics (FRP) are becoming more important for a wide variety of industries, e.g. automotive engineering. The need for efficient manufacturing and processing methods for these composites is increasing. The Fraunhofer Institute for Laser Technology ILT ...
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Filtering molecules from the water or air with nanomembranes

18/09/2017

Free-standing carbon membranes that are a millionth of a millimetre thin: these are a special research field of Professor Dr. Armin Gölzhäuser from Bielefeld University and his research group. The nanomembranes can serve as ultrafine filters and as a protective layer. The Bielefeld physicists have registered several patents for manufacturing such molecular foils.
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New insights into nanocrystal growth in liquid

18/09/2017

Researchers have measured the forces that cause certain crystals to assemble, revealing competing factors that researchers might be able to control. The work has a variety of implications in both discovery and applied science. In addition to providing insights into the formation of minerals and semiconductor nanomaterials, it might ...
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New study on graphene-wrapped nanocrystals makes inroads toward next-gen fuel cells

15/09/2017

A new Berkeley Lab-led study provides insight into how an ultrathin coating can enhance the performance of graphene-wrapped nanocrystals for hydrogen storage applications.
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