caa a22 4500 445304006 CHVBK 20180317142607.0 cr unu---uuuuu 170323e20101101xx s 000 0 eng 10.1007/s12274-010-0050-4 doi (NATIONALLICENCE)springer-10.1007/s12274-010-0050-4 SnO2/graphene composite with high lithium storage capability for lithium rechargeable batteries [Elektronische Daten] [Haegyeom Kim, Sung-Wook Kim, Young-Uk Park, Hyeokjo Gwon, Dong-Hwa Seo, Yuhee Kim, Kisuk Kang] SnO2/graphene nanocomposites have been fabricated by a simple chemical method. In the fabrication process, the control of surface charge causes echinoid-like SnO2 nanoparticles to be formed and uniformly decorated on the graphene. The electrostatic attraction between a graphene nanosheet (GNS) and the echinoid-like SnO2 particles under controlled pH creates a unique nanostructure in which extremely small SnO2 particles are uniformly dispersed on the GNS. The SnO2/graphene nanocomposite has been shown to perform as a high capacity anode with good cycling behavior in lithium rechargeable batteries. The anode retained a reversible capacity of 634 mA·h·g−1 with a coulombic efficiency of 98% after 50 cycles. The high reversibility can be attributed to the mechanical buffering by the GNS against the large volume change of SnO2 during delithiation/lithiation reactions. Furthermore, the power capability is significantly enhanced due to the nanostructure, which enables facile electron transport through the GNS and fast delithiation/lithiation reactions within the echinoid-like nano-SnO2. The route suggested here for the fabrication of SnO2/graphene hybrid materials is a simple economical route for the preparation of other graphene-based hybrid materials which can be employed in many different fields. Tsinghua University Press and Springer-Verlag Berlin Heidelberg, 2010 Graphene nationallicence SnO2 nationallicence surface charge nationallicence nanocomposite nationallicence rechargeable batteries nationallicence lithium nationallicence Kim Haegyeom Graduate School of Energy, Environment, Water, and Sustainability, Korea Advanced Institute of Science and Technology (KAIST), 335 Gwahangno, 305-701, Yuseong-gu, Daejeon, Republic of Korea aut Kim Sung-Wook Department of Materials Science and Engineering, KAIST, 335 Gwahangno, 305-701, Yuseong-gu, Daejeon, Republic of Korea aut Park Young-Uk Department of Materials Science and Engineering, KAIST, 335 Gwahangno, 305-701, Yuseong-gu, Daejeon, Republic of Korea aut Gwon Hyeokjo Department of Materials Science and Engineering, KAIST, 335 Gwahangno, 305-701, Yuseong-gu, Daejeon, Republic of Korea aut Seo Dong-Hwa Department of Materials Science and Engineering, KAIST, 335 Gwahangno, 305-701, Yuseong-gu, Daejeon, Republic of Korea aut Kim Yuhee Korea Institute of Science and Technology (KIST), 39-1 Hawolgok-dong, Wolsong-gil 5, 136-791, Seongbuk-gu, Seoul, Republic of Korea aut Kang Kisuk Graduate School of Energy, Environment, Water, and Sustainability, Korea Advanced Institute of Science and Technology (KAIST), 335 Gwahangno, 305-701, Yuseong-gu, Daejeon, Republic of Korea aut Nano Research Tsinghua Press 3/11(2010-11-01), 813-821 1998-0124 3:11<813 2010 3 12274 https://doi.org/10.1007/s12274-010-0050-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12274-010-0050-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kim Haegyeom Graduate School of Energy, Environment, Water, and Sustainability, Korea Advanced Institute of Science and Technology (KAIST), 335 Gwahangno, 305-701, Yuseong-gu, Daejeon, Republic of Korea aut NATIONALLICENCE 700 1- Kim Sung-Wook Department of Materials Science and Engineering, KAIST, 335 Gwahangno, 305-701, Yuseong-gu, Daejeon, Republic of Korea aut NATIONALLICENCE 700 1- Park Young-Uk Department of Materials Science and Engineering, KAIST, 335 Gwahangno, 305-701, Yuseong-gu, Daejeon, Republic of Korea aut NATIONALLICENCE 700 1- Gwon Hyeokjo Department of Materials Science and Engineering, KAIST, 335 Gwahangno, 305-701, Yuseong-gu, Daejeon, Republic of Korea aut NATIONALLICENCE 700 1- Seo Dong-Hwa Department of Materials Science and Engineering, KAIST, 335 Gwahangno, 305-701, Yuseong-gu, Daejeon, Republic of Korea aut NATIONALLICENCE 700 1- Kim Yuhee Korea Institute of Science and Technology (KIST), 39-1 Hawolgok-dong, Wolsong-gil 5, 136-791, Seongbuk-gu, Seoul, Republic of Korea aut NATIONALLICENCE 700 1- Kang Kisuk Graduate School of Energy, Environment, Water, and Sustainability, Korea Advanced Institute of Science and Technology (KAIST), 335 Gwahangno, 305-701, Yuseong-gu, Daejeon, Republic of Korea aut NATIONALLICENCE 773 0- Nano Research Tsinghua Press 3/11(2010-11-01), 813-821 1998-0124 3:11<813 2010 3 12274 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer