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97 Current news about the topic zinc

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A smart safe rechargeable zinc ion battery based on sol-gel transition electrolytes

23-Jul-2018

The thermal runaway issue has been a long-standing obstacle impeding the development of high energy density and high power delivery batteries. These batteries would generate a lot of heat in ultrafast charge/discharge process or hazardous conditions, such as overcharging and short-circuit. To ...

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Quantum Dot White LEDs Achieve Record Efficiency

16-Jul-2018

Researchers have demonstrated nanomaterial-based white-light-emitting diodes (LEDs) that exhibit a record luminous efficiency of 105 lumens per watt. Luminous efficiency is a measure of how well a light source uses power to generate light. With further development, the new LEDs could reach ...

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Metal-organic compounds produces new class of glass

13-Mar-2018

Lightning and volcanos both produce glass, and humans have been making glass from silicon dioxide since prehistory. Industrialization brought us boron-based glasses, polymer glasses and metallic glasses, but now an international team of researchers has developed a new family of glass based on ...

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Promising sensors for submarines, mines and spacecraft

14-Nov-2017

Researchers from the Physics Department of Moscow State University and their colleagues have discovered a mechanism that allows gas sensors, based on nanocrystalline metal oxides, to work at room temperature. This invention will raise the efficiency of environmental monitoring at nuclear power ...

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Novel catalyst for rechargeable metal-air batteries

27-Oct-2017

Research in lithium-ion batteries has opened up a plethora of possibilities in the development of next-generation batteries. In particular, the metal-air batteries with significantly greater energy density close to that of gasoline per kilogram, has recently been acknowledged and invested by ...

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When a porous solid retains its properties in liquid form

12-Oct-2017

Known for their exceptional porosity that enables the trapping or transport of molecules, metal-organic frameworks (MOFs) take the form of a powder, which makes them difficult to format. For the first time, an international team led by scientists from the Institut de recherche de Chimie Paris, ...

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Advanced lithium-ion and metal-air batteries developed

21-Sep-2017

University of Central Florida Assistant Professor Yang Yang's research group has developed two promising energy storage technologies in its work with sustainable energy systems. Yang sees revolutionary systems that can produce and store energy inexpensively and efficiently as a potential solution ...

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A more sustainable way to refine metals

08-Jun-2017

A team of chemists in Canada has developed a way to process metals without using toxic solvents and reagents. The system, which also consumes far less energy than conventional techniques, could greatly shrink the environmental impact of producing metals from raw materials or from post-consumer ...

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Printed, flexible and rechargeable battery can power wearable sensors

29-May-2017

Nanoengineers at the University of California San Diego have developed the first printed battery that is flexible, stretchable and rechargeable. The zinc batteries could be used to power everything from wearable sensors to solar cells and other kinds of electronics. The researchers made the ...

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New types of structures for cage-like clathrates

08-Mar-2017

Cage-like compounds called clathrates could be used for harvesting waste heat and turning it into electricity. UC Davis chemists just discovered a whole new class of clathrates, potentially opening new ways to make and apply these materials. A clathrate is basically a cage of atoms with another ...

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