Spontaneous hybrids of graphene and carbon nanotube arrays at the liquid–gas interface for Li-ion battery anodes

Hyeri Kim; Jongsoon Kim; Hee-Sung Jeong; Hyungsub Kim; Hoyeon Lee; Jae-Min Ha; Sung-Min Choi; Tae-Ho Kim; Yoon-Chae Nah; Tae Joo Shin; Joona Bang; Sushil K. Satija; Jaseung Koo

doi:10.1039/C8CC02148A

Spontaneous hybrids of graphene and carbon nanotube arrays at the liquid–gas interface for Li-ion battery anodes†

Hyeri Kim,‡^a Jongsoon Kim,

‡^b Hee-Sung Jeong,^a Hyungsub Kim,^a Hoyeon Lee,^a Jae-Min Ha,^c Sung-Min Choi,^c Tae-Ho Kim,^d Yoon-Chae Nah,^d Tae Joo Shin,^e Joona Bang,

^f Sushil K. Satija^g and Jaseung Koo

*^h

Author affiliations

* Corresponding authors

^a Neutron Science Division, Korea Atomic Energy Research Institute, Daejeon, Korea

^b Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul, Korea

^c Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea

^d Interdisciplinary Program in Creative Engineering, School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education, Cheonan, Korea

^e UNIST Central Research Facilities, Ulsan National Institute of Science and Technology, Ulsan, Korea

^f Department of Chemical and Biological Engineering, Korea University, Seoul, Korea

^g Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA

^h Department of Organic Materials Engineering, Chungnam National University, Daejeon, Korea
E-mail: jkoo@cnu.ac.kr

Abstract

We demonstrate that hybrid structures of graphene and single-walled carbon nanotubes (SWNTs) are precisely controlled at the liquid–gas interface. The functionalized SWNT Langmuir monolayers anchor single-layer graphene nanosheets (GNSs) suspended in water via Coulomb interaction at the interface. This GNS/SWNT hybrid multilayer electrode can be a promising anode material for Li-ion batteries, offering high specific capacity, outstanding power capability, and excellent cyclability.

Chemical Communications

Spontaneous hybrids of graphene and carbon nanotube arrays at the liquid–gas interface for Li-ion battery anodes†

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Spontaneous hybrids of graphene and carbon nanotube arrays at the liquid–gas interface for Li-ion battery anodes

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