For most of us, graphite is the black smudgy drawing material at the center of an everyday wooden pencil. For material scientists, it’s the foundation for perhaps the most interesting nanomaterial ever discovered.
That nanomaterial is called graphene, which is an extremely thin layer of carbon arranged in a honeycomb-shaped (hexagonal) lattice.
Graphene was first isolated in 2004 when a couple of scientists stuck everyday household tape to graphite to separate the fragments. They repeated touching the tape to the thin dusting of graphite particles until they had a layer one atom thick. They were eventually able to take this method to create the world’s first sheet of what is called graphene. It was this discovery – as well as a better understanding of the amazing resulting properties of the material – for which the two scientists from the University of Manchester eventually won the Nobel Prize in physics in 2010.
Ever since, it’s those same properties that have made graphene the focus of material researchers around the world. Not only is graphene the world’s thinnest material (again, one atom thick), it’s also the strongest. In addition, graphene is also transparent and is an excellent conductor of both heat and electricity. As a result, some of the applications being explored as part of the “graphene gold rush” include everything from conductors to touch screens to concrete strengthener.
And now, a home kitchen cooking appliance.
That’s right, at CES last week, a company called Graphene Square showed off a new cooking appliance concept that uses graphene to heat and cook food. The product, called the Graphene Kitchen Styler, looks something like a transparent space-age George Foreman grill. To make, say, toast, you insert a slice of bread between two transparent clamshell sides, close it, and watch through the transparent graphene material as the bread gets toasty and brown.
According to a company spokesperson, the graphene can go up to 200 degrees Celsius within 90 seconds. And while the video below shows the appliance browning toast, Graphene Square says they’ve also used the Graphene Styler to cook steak, chicken, and even boil water.
While graphene itself is a pretty exciting material technology, it remains to be seen as to whether consumers would want this specific appliance built with it. And while the Graphene Square says this product could be to market by 2023, it may just be that the company – which is more of a B2B materials science manufacturer than consumer products company – is trying to entice a Samsung or LG to consider graphene for one of their future kitchens appliances.
