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Deep-Frying Graphene Microspheres For Energy Storage

ckwu writes Materials scientists have constructed round, pom-pom-like graphene microparticles by spraying graphene oxide droplets into a hot solvent—a process akin to deep-frying. The technique could provide a simple, versatile means to make electrode materials for batteries and supercapacitors, possibly leading to devices with improved energy and power densities, the researchers say. The microparticles contain graphene nanosheets radiating out from their centers, which increases the exposed surface area of the graphene and creates open nanochannels that can enhance charge transfer. Electrodes made with the graphene microspheres had higher capacitance than those made with unassembled graphene sheets, demonstrating that the 3-D structure of the particles improved performance.

2 of 49 comments (clear)

  1. Science, not a product by ledow · · Score: 4, Insightful

    Yet to see a graphene product in the wild.

    Until then, this is interesting science research and nothing more.

    Has been the same for, what, 11 years now?

    The Wiki says: "While as of 2014, graphene is not used in commercial applications, many have been proposed and/or are under development, in areas including electronics, biological engineering, filtration, lightweight/strong composite materials, photovoltaics and energy storage.... adhesive, elastomer, oil and aqueous and non-aqueous solutions... advanced composites, paints and coatings, lubricants, oils and functional fluids, capacitors and batteries, thermal management applications, display materials and packaging, inks and 3D-printersâ(TM) materials, and barriers and films."

    Stop making promises. Start making a single, viable product from it. At the moment, I have more products dependent on quantum interactions and radiation than I do on a substance we're told can be produced by pulling a strip of sellotape off a block of graphite.

  2. Re:Mmmm.. by GrumpySteen · · Score: 1, Insightful