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22 Current news of Lehigh University

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Unexpected degree of order found in interior grain boundaries of polycrystalline materials

11-Oct-2017

Scientists in the United States and China have announced a discovery that they believe could enable the engineering of alloyed materials that are stronger and more ductile and possess superior electrical, magnetic and physical properties. The researchers said they had found a surprising degree of ...

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Direct conversion of methane to methanol

Catalyzed by gold-palladium nanoparticles

11-Sep-2017

Liquid methanol is widely used as a feedstock for other chemicals and also has considerable potential as an alternative fuel source. However, converting methane--the primary component of abundant natural gas--into methanol is currently achieved by an indirect process which requires high heat and ...

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Tunneling a path to low cost, high efficiency solar cells

08-Sep-2017

Lowering the cost of solar cell production and making it more affordable to individuals and businesses could be a game-changer for the energy sector. That is one of the reasons behind the U.S. Department of Energy's 2011 launch of the SunShot Initiative, a national effort to drive down the cost ...

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A more complete picture of the nano world

28-Aug-2017

They may be tiny and invisible, says Xiaoji Xu , but the aerosol particles suspended in gases play a role in cloud formation and environmental pollution and can be detrimental to human health. Aerosol particles, which are found in haze, dust and vehicle exhaust, measure in the microns. One micron ...

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Atomic-level activity of green catalyst used in PVC production revealed

03-Apr-2017

An international group of scientists has unlocked the secret of a gold-based catalyst that is responsible for a new, environmentally friendly method of producing the vinyl chloride monomer (VCM) that is used to manufacture polyvinyl chloride (PVC), the world's third-most widely used ...

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Scientists fabricate a new class of crystalline solid

A 'subtle' laser heating technique causes atoms to assemble into a rotating lattice

04-Nov-2016

Scientists at Lehigh University, in collaboration with Lawrence Berkeley National Laboratory, have demonstrated the fabrication of what they call a new class of crystalline solid by using a laser heating technique that induces atoms to organize into a rotating lattice without affecting the ...

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Making lasers cool again

02-Nov-2016

Once the preferred weapon of B-movie madmen and space-fiction heroes alike, the laser -- a device that generates an intense beam of coherent electromagnetic radiation by stimulating the emission of photons from excited atoms or molecules -- has grown a bit domesticated of late. These days, it has ...

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The unexpected hardness of gallium nitride

31-Oct-2016

Gallium nitride (GaN) has emerged as one of the most important and widely used semiconducting materials. Its optoelectronic and mechanical properties make it ideal for a variety of applications, including light-emitting diodes (LEDs), high-temperature transistors, sensors and biocompatible ...

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Lehigh engineer discovers a high-speed nano-avalanche

24-Aug-2016

Charles McLaren, a doctoral student in materials science and engineering at Lehigh University , arrived last fall for his semester of research at the University of Marburg in Germany with his language skills significantly lagging behind his scientific prowess. "It was my first trip to Germany, ...

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First single-enzyme method to produce quantum dots revealed

11-May-2016

Quantum dots (QDs) are semiconducting nanocrystals prized for their optical and electronic properties. The brilliant, pure colors produced by QDs when stimulated with ultraviolet light are ideal for use in flat screen displays, medical imaging devices, solar panels and LEDs. One obstacle to mass ...

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