Rice Husk-Derived Graphene with Nano-Sized Domains and Clean Edges (pages 2766–2770)
Hiroyuki Muramatsu, Yoong Ahm Kim, Kap-Seung Yang, Rodolfo Cruz-Silva, Ikumi Toda, Takumi Yamada, Mauricio Terrones, Morinobu Endo, Takuya Hayashi and Hidetoshi Saitoh
Version of Record online: 27 MAR 2014 | DOI: 10.1002/smll.201400017
A new synthetic method is demonstrated for transforming rice husks into bulk amounts of graphene through its calcination and chemical activation. The bulk sample consists of crystalline nano-sized graphene and corrugated individual graphene sheets; the material generally contains one, two, or a few layers, and corrugated graphene domains are typically observed in monolayers containing topological defects within the hexagonal lattice and edges. Both types of graphenes exhibit atomically smooth surfaces and edges.