An article mentions that Rice scientists have developed a simple way to produce conductive, three-dimensional objects made of graphene foam. A video of the process is included.
https://www.nextbigfuture.com/2018/07/146816.html
Smalley-Curl Institute and the NanoCarbon Center
6100 Main St. MS 222
Houston, TX 77005
dummy713-348-6246
dummy dustin@rice.edu
dummy713-348-6247