Graphene, a single layer of graphite with the atoms arranged in a honeycomb-like hexagonal pattern, is one of the theoretically toughest materials in the known universe. Not content with that billing, however, materials scientists from Rice University in Houston, Texas, have found a way to make it more than twice as tough — courtesy of embedded carbon nanotubes. In three-dimensional graphene structures, they have demonstrated that it’s possible to strengthen it by up to 10 times.

https://www.jmtour.com" rel="nofollow noopener" target="_blank">James Tour</a>, professor of materials science and nano-engineering at Rice University, told Digital Trends. “We call this rebar graphene, with ‘rebar’ being the metal bars that go through concrete to strengthen it.”" data-reactid="24">“We have shown that we can grow graphene with nanotubes,” James Tour, professor of materials science and nano-engineering at Rice University, told Digital Trends. “We call this rebar graphene, with ‘rebar’ being the metal bars that go through concrete to strengthen it.”

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