Functional Nanomaterials: Functional Low-Dimensional (0D, 1D, 2D) Materials 2022: CANCELLED: Functional Energy Nanomaterials: Lithium-based Energy Storage
Sponsored by: TMS Functional Materials Division, TMS: Nanomaterials Committee
Program Organizers: Michael Cai Wang, University of South Florida; Yong Lin Kong, University of Utah; Sarah Ying Zhong, University of South Florida; Surojit Gupta, University of North Dakota; Nasrin Hooshmand, Georgia Institute of Technology; Woochul Lee, University of Hawaii at Manoa; Min-Kyu Song, Washington State University; Simona Hunyadi Murph, Savannah River National Laboratory; Hagar Labouta, University of Manitoba; Max Anikovskiy, University of Calgary; Patrick Ward, Savannah River National Laboratory
Thursday 2:00 PM
March 3, 2022
Room: 260B
Location: Anaheim Convention Center
Session Chair: Min-Kyu Song, Washington State University; Woochull Lee, University of Hawaiʻi at Mānoa
2:00 PM Cancelled
3D Carbon Nanotube Sponges: Surface Treatments for Improving the Performances of Energy Storage and Mechanical Properties: Choongho Yu1; 1Texas A&M University
A novel self-assembled, porous 3D carbon nanotube (CNT) structures have been synthesized, and then their surfaces have been modified for energy storage applications including lithium batteries. Furthermore, the surface of individual CNTs has been coated with a thin polymer layer by selectively curing the polymer near the CNT surface with microwave irradiation. For lithium-sulfur batteries, trench walls on the CNT surface were created by a controllable mechano-chemical method, acting as dual hosts for high-areal-capacity sulfur cathodes and lithium anodes by providing nano-reactors for promoting electrochemical reactions. The selective polymer coating resolved the prevailing problem of mechanical weakness by an ultra-fast pulsed microwave method to obtain uniform nanoscale coating layers on the inner surfaces of a porous CNT. The coating layer strongly bound CNTs while maintaining the pores, resulting in super-resilient 3D porous structures. The surface modifications are useful in developing various nanostructured materials with desired functionalities.
2:25 PM Invited
NOW ON-DEMAND ONLY - MOF-derived Metal Oxide Composites for High Performance Energy Storage: Tae-Sik Oh1; 1Auburn University
Metal-organic frameworks (MOFs) are crystalline porous materials composed of metal ion centers and organic linkers. The intrinsic high surface area and controllable pore size of MOF structures by linker length variation make them ideal in porous templates preparation.In this work, we adopt a rational strategy to fabricate NiCo2O4/Co3O4-rGO supercapacitor electrodes. Highly porous ZIF-67 nanocrystals are firstly produced through the coordination modulation process. By carefully etching these structures, ZIF-67/Ni-Co layered double-hydroxide template is formed. The as-prepared templates are subsequently calcinated to obtain the NiCo2O4/Co3O4 nanocomposite. To prevent particle agglomeration and improve the charge transfer, we functionalize the surface of as-prepared nanostructures through a silanization process. We mixed the surface-treated nanostructure with graphene oxide dispersion to form a self-assembled NiCo2O4/Co3O4-rGO composite electrode.