Teng LiUniversity of Maryland, USA
Teng Li is an associate professor in University of Maryland, the Clark School Academy of Distinguished Professor. He received Ph.D degree from Harvard University in 2006.
His research is focused on Mechanics of the micro/nano structures in flexible macroelectronics and nanoelectronics, Mechanics of low-dimensional carbon materials (graphene, CNTs, CNSs), Deformation instability of thin films and multilayers and Biomechanics of membrane and cytoskeleton in cells.
He received the Ralph E. Powe Junior Faculty Enhancement Award in 2007, Best Poster Award, Gordon Research Conference (GRC) on Thin film & Small Scale Mechanical Behavior in 2006, Poster Award, Gordon Research Conference (GRC) on Ceramics, Solid State Studies In in 2005, Outstanding Poster Award, Materials Research Society (MRS), 16 out of 1700+ posters in 2004. Best Poster Award (Runner-up),Gordon Research Conference (GRC) on Thin film & Small Scale Mechanical Behavior in 2004.
Title：Graphene Origami: Toward Unconventional Carbon Nanostructures
SymposiumSensors & Biosensor
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Abstract
The malleable nature of atomically thin graphene makes it a potential candidate material for nanoscale origami, a promising bottom-up nanomanufacturing approach to fabricating nano-building blocks of desirable shapes. The success of graphene origami hinges upon precise and facile control of graphene morphology, which still remains as a significant challenge. Inspired by recent progresses on functionalization and patterning of graphene, we demonstrate hydrogenation assisted graphene origami (HAGO), a feasible and robust approach to enabling the formation of unconventional carbon nanostructures, through systematic molecular dynamics simulations. A unique and desirable feature of HAGOenabled nanostructures is the programmable tunability of their morphology via an external electric field. In particular, we demonstrate reversible opening and closing of a HAGO-enabled graphene nanocage, a mechanism that is crucial to achieve molecular mass uptake, storage and release. HAGO holds promise to enable an array of novel carbon nanostructures of desirable functionalities by design. As an example, we demonstrate HAGO-enabled high-density hydrogen storage with a weighted percentage exceeding the ultimate goal of US Department of Energy.
Reference:
[1] S. Zhu, T. Li, Hydrogenation-Assisted Graphene Origami and Its Application in Programmable Molecular Mass Uptake, Storage, and Release, ACS Nano, 8 (3), 2864–2872 (2014)
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