Split it into thin flakes with ultrasound, and sort the particles by size (which can be done in different ways). If you are honest, you only take the very thin “real” graphene flakes and sell them. If you’re grey or have no idea what you’re doing, you sell it all as “graphene”, obviously for top dollar. Illustration: Peter A few years ago, a front show the researchers in the field, Jonathan Coleman from Trinity College Dublin, that you can make graphene in a kitchen blender. Watch his Tx talk – he is both entertaining and inspiring.
Perhaps some of the manufacturers
Tken the quality control a little too lightly and have just “blend out”, without worrying too much about sorting the real graphene from all the other junk. There is ample evidence that Bulk SMS Colombia graphene powder – of high quality, mind you – can improve material properties dramatically. It’s just pretty bad if a curious researcher or developer in a company orders some graphene home to try for themselves and it doesn’t work – because it’s not graphene. This can obviously hinder technological development, and it will not work. Graphene and the many other 2D materials are crucial pieces in the game of solving the big challenges of today and the future.
The scientists’ verdict is clear
Half of the products they examin contain as little as 10% graphene. None of the products had more than 50% graphene. And this is, mind you, with the rather generous DP Leads definition that it is “graphene” if there are less than ten monolayers, thick flake of graphene. It might not sound like much, My main point is that we must keep track of our own troops and fight to spread uniform measurement standards – and help manufacturers to better control what they sell. It is not enough that researchers promise graphene and green forests – we must also ensure that the quality of the materials sold is high and well document.