Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a) SEM image of the graphene sponge (GS) showing the macroscale porous structure and the graphene surface (inset); (b,c) SEM images of a colonized graphene-sponge-stainless steel mesh electrode (GMS) after 50 days of operation, at different scales. Adapted from [66], with permission from © 2012 The Royal Society of Chemistry.
