Programmable Graphene Architectures by Hydrogenation
Liuyang Zhang (), Xianqiao Wang (University of Georgia)
Advances in Nanocomposites for Thermal and Structural Applications
Tue 4:20 - 5:40
Barus-Holley 165
The folded graphene has been extensively explored in the recent years owing to its new three dimensional structure and distinct electrical and mechanical properties. How to overcome the energy barrier of folding and fold the graphene under the specific shape and direction during the folding formation remains elusive. Here we propose a novel approach --- programmable formation of graphene origami via chemical functionalization --- to manipulate the folding formation under a variety of rules. We perform delicate chemical doping to hybridize the graphene in the armchair or zigzag direction, which results in intriguing plane angles and geometric morphologies of the doped systems. Controlled hybridization of graphene can further lead to complex origami architectures infeasible to fabricate with current techniques due to the fragility of the bond on the edges. By employing molecular dynamic simulation in our research, we create a cross-shaped cubic carbon nanocage by warping the top graphene layer downward and the bottom graphene layer upward. We aim to explore the formation of unconventional graphene-based nanocage that can be utilized as the nanocontainer and components of nanocomposites. Such a paradigm, programmable enabled graphene origami, can open up a new avenue to control the 3D architecture of graphene and therefore provide the feasible way to exploit and fabricate the graphene-based unconventional nanomaterials and nanodevices.