25^th Nano Congress for Future Advancements

Biography

Biography: Il-Kwon Oh

Abstract

Low-dimensional nanostructures such as 0D fullerene, 1D carbon nanotube, and 2D graphene materials have received widespread attention due to their excellent mechanical, electrical, and chemical properties. However, they have not yet reached the stage of engineering applications and industrialization because of problems such as intrinsic defects, dispersion, restacking, and alignment. Therefore, to overcome the limitations of the low-dimensional nano-carbons, it is necessary to develop 3D multifunctional hetero nanostructures that have strong bonding between other nanostructures. Herein, this study will establish innovative defect engineering methods to form 3D multifunctional hetero-nanostructures by intentionally generating defects and using those defects as nucleation sites. And, we will establish a new concept of functionally antagonistic nano-engineering, which will allow us to realize synergistic multifunctionalities with 3D hetero nanostructures having two concurrent antagonistic functions (i.e. energy storage and energy dissipation). During the defect engineering processes, physical and atomic scale defects will be intentionally generated and those defects will be used as functionally active sites for strong bonding among different nanostructures. This study will extend this new preliminary method to make various 3D hetero-nanostructures such as highly porous 3D networked structures with efficient ionic pathways, nanohole-structured and catalyst-embedded porous nanostructures, carbon fabric having anode/cathode nanowire electrodes, and particle damping nanomaterials. 3D multifunctional hetero nanostructures will be applied in functionally antagonistic nano-engineering, which will have a great impact on our lives, allowing the fabrication of integrated composite structural modules with two antagonistic functions such as energy storage and energy dissipation functions needed in next generation electronics and vehicles. Thus, this new technology is expected to lead to new future industries that will greatly contribute to improvements in life quality, pique public interests, and lead to healthy lives for humankind. In addition, the defect engineering synthesis of 3D multifunctional hetero-nanostructures will include fundamental nano-science and will be disruptive technology that will have a great impact on industries involving machinery, energy, electronic instruments, the environment, etc.