Using graphene, scientists develop a less toxic way to rust-proof steel

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  1. ScienceRocks
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    Using graphene, scientists develop a less toxic way to rust-proof steel
    Using graphene, scientists develop a less toxic way to rust-proof steel

    Phys.org) -- University at Buffalo researchers are making significant progress on rust-proofing steel using a graphene-based composite that could serve as a nontoxic alternative to coatings that contain hexavalent chromium, a probable carcinogen.


    In the scientists' first experiments, pieces of steel coated with the high-tech varnish remained rust-free for only a few days when immersed continuously in saltwater, an environment that accelerates corrosion.

    By adjusting the concentration and dispersion of graphene within the composite, the researchers increased to about a month the amount of time the treated steel can survive in brine. (Because brine is an extremely harsh environment, the coated steel's survival time in the real-world would be many times longer.)

    The UB chemists leading the project are Sarbajit Banerjee, PhD, an assistant professor, and Robert Dennis, a PhD student. Their next step is to use a $50,000 grant from the New York State Pollution Prevention Institute to enhance the graphene composite's lasting power, as well as the quality of its finish.
     
  2. waltky
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    waltky Wise ol' monkey Supporting Member

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    Could graphene put an end to the problem of rust?...
    :confused:
    Is graphene really a wonder-material?
    15 January 2013 - Graphene is a waste of money, a very senior British professor told me last year during a conversation about government funding for science.
     

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