Worth noting, the team tested whether functionalized graphene sheets could withstand repeated exposure to NH 3 without degrading their gas-sensing performance. Although some irreversible changes ...

Another major obstacle is the need for a reliable method to produce graphene sheets in large amounts. The original method based on exfoliation works quite well for fundamental studies, but is not ...

Scientists in Brazil have made the largest chemically synthesised graphene sheet ever reported. Graphene – single-atom-thick sheets of carbon – is a material that has seemed full of possibilities ...

They were studying different aspects of graphene – sheets of carbon only one atom thick – but both made the same estimate about how hard it should be for an electric current flowing through ...

The first was made of nanosized graphite crystallites with 5–50 graphite sheets randomly distributed ... consisting of 10–20 stacked horizontal layers of graphene. A regenerative amplified ...