Are vacuum-filtrated reduced graphene oxide membranes symmetric?

Bo Tang, Lianbin Zhang, Renyuan Li, Jinbo Wu, Mohamed Neijib Hedhili, Peng Wang
2016 Nanoscale  
Asymmetry of the reduced graphene oxide (rGO) membranes prepared by the commonly used vacuum filtration process is disclosed. When the filter membrane surface pores have similar dimension to GO sheets, the entry of GO sheets into its surface pore space during vacuum filtration can take place, leading to the asymmetry of the rGO membrane.
doi:10.1039/c5nr06797a pmid:26667828 fatcat:7l2otc4jt5fqjaxzfd74vhlvp4