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How to Quantify the Quality of Graphene? Scientists Have Provided an Answer

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Scientists at the U.S. Department of Energy’s Ames Laboratory have uncovered a previously unrecognized analytical characterization criterion that accurately quantifies the quality of 2D materials.  Specifically, they analyzed graphene using low energy electron diffraction.  Normally the diffraction results are expected to be sharp and clear peaks that represent the perfection of the material; however, the graphene results also included a broad diffusion band in addition to the aforementioned peaks.  While the cause for this broad diffusion band’s presence is not yet fully understood, the scientists at Ames Laboratory theorize that it is due to the confinement of graphene electrons into a...

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Career Opportunity with MSE Supplies LLC: Technical Sales Engineer

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Job Summary With a mission to support scientists and engineers worldwide to accelerate their innovations, MSE Supplies LLC has created an exciting career opportunity for a Technical Sales Engineer who has an entrepreneurial mindset. This opportunity offers an attractive compensation and benefits package to a high achiever to join a fast-growing company. You will be establishing personal rapport with prospects and customers. You will accurately understand customers' inquiries, make recommendations of standard products, and propose customized solutions to customers.  Company: MSE Supplies (msesupplies.com) is a U.S.-based leading supplier of high quality materials, equipment and analytical services for research and production....

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Ball Mill Production of Corundum Ceramic Nanoparticles

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Scientists at the Max-Planck-Institut für Kohlenforschung in Mülheim an der Ruhr have created a method to economically produce corundum ceramic nanoparticles, one that centers around a key piece of materials science laboratory equipment: the ball mill.  Corundum (also known as alpha-alumina) ceramic nanoparticles are useful in a wide variety of applications because of their hardness, which is comparable to diamond’s, and their high resistance to both heat and chemicals.  Based on these properties, corundum is used for cutting tools, for ceramic implants in biological prostheses, and for general catalysis.  Corundum’s nanoparticle form could even become an essential ingredient in the...

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Source of Detrimental Dendrite Growth in Lithium Batteries Discovered

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Scientists at the Pacific Northwest National Laboratory (PNNL) led by Chongmin Wang have conducted studies in order to understand the catastrophic growth of dendrites within lithium batteries.  Dendrites are structures that grow in the battery’s internal architecture and cause harm by breaking the barrier between the electrolyte and the lithium, which leads to battery failure.  The perpetrator of this phenomenon has been identified as ethylene carbonate.  Ironically, it is a solvent that is currently added to the electrolyte to improve battery performance.  Now that the root cause of these destructive dendrites has been identified, steps can be taken to not...

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New Argonne Battery Design Offers "Solid" Advantage - Dopant‐Dependent Stability of Garnet Solid Electrolyte Interfaces with Lithium Metal

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Credit: Argonne National Laboratory/Sanja Tepavcevic This multi-module ultrahigh vacuum system (in blue) allowed Argonne researchers to create and probe the interface of a solid electrolyte with a lithium metal anode without air exposure. This experiment correlated interfacial chemistry with the electrochemical response of the system. Most lithium batteries today consist of a liquid sandwiched between two solid materials. That conventional paradigm may be about to get some competition, however, as scientists have begun to investigate batteries that consist of all solid materials. Solid-state lithium batteries offer several advantages over those that use a liquid electrolyte; most notably, they allow for...

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