Graphene offers easier processing and, potentially, much lower costs. Shortages of indium have driven up its cost from 10 cents per gram in 2002 to about 60 cents per gram today, after reaching a ...

The research, published in Nature Communications, shows that 1 gram of graphene can be sufficient for extracting nearly 2 grams of gold. As graphene costs less than $0.1 per gram, this can be very ...

For example, a monolayer of graphene sufficient in size to cover an entire soccer field would weigh less than 3 grams (graphene's surface area is 2630 square meters per gram). This huge surface area ...

For example, as little as 0.1 per cent of ... actually it costs less." And scientists have now also worked out to scale up production. It's no good making graphene by the gram or the milligram.