High yield preparation of macroscopic graphene oxide membranes

摘要

Disclosed are graphene oxide membrane materials of high surface area, which membranes suitably have a surface area of above about 200 μm and exhibit electrical conductivity in excess of about 200 S/m. Also provided are methods of synthesizing such membranes, as well as devices and sensors that incorporate these novel grapheme materials.

主权项

1. A method of synthesizing a graphene oxide membrane, comprising:
exposing graphite to microwave radiation so as to exfoliate at least a portion of the graphite into a layered structure; and oxidizing the layered structure so as to give rise to a graphene oxide membrane having an upper surface and a lower surface; wherein the oxidizing is performed after exposure to microwave radiation.