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  • N‐Doped Graphene‐SnO 2 Sand...
    Wang, Xi; Cao, Xinqiang; Bourgeois, Laure; Guan, Hasigaowa; Chen, Shimou; Zhong, Yeteng; Tang, Dai‐Ming; Li, Huiqiao; Zhai, Tianyou; Li, Liang; Bando, Yoshio; Golberg, Dmitri

    Advanced functional materials, 07/2012, Letnik: 22, Številka: 13
    Journal Article

    Abstract A new facile route to fabricate N‐doped graphene‐SnO 2 sandwich papers is developed. The 7,7,8,8‐tetracyanoquinodimethane anion (TCNQ − ) plays a key role for the formation of such structures as it acts as both the nitrogen source and complexing agent. If used in lithium‐ion batteries (LIBs), the material exhibits a large capacity, high rate capability, and excellent cycling stability. The superior electrochemical performance of this novel material is the result from its unique features: excellent electronic conductivity related to the sandwich structure, short transportation length for both lithium ions and electrons, and elastomeric space to accommodate volume changes upon Li insertion/extraction.