A Versatile, Ultralight, Nitrogen-Doped Graphene Framework

Authors

  • Yang Zhao,

    1. Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry, Beijing Institute of Technology, Beijing 100081 (China)
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  • Chuangang Hu,

    1. Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry, Beijing Institute of Technology, Beijing 100081 (China)
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  • Yue Hu,

    1. Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry, Beijing Institute of Technology, Beijing 100081 (China)
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  • Huhu Cheng,

    1. Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry, Beijing Institute of Technology, Beijing 100081 (China)
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  • Prof. Gaoquan Shi,

    1. Department of Chemistry, Tsinghua University, Beijing 100084 (China)
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  • Prof. Liangti Qu

    Corresponding author
    1. Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry, Beijing Institute of Technology, Beijing 100081 (China)
    • Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry, Beijing Institute of Technology, Beijing 100081 (China)
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  • We thank the financial support from the National Basic Research Program of China (2011CB013000) and NSFC (21004006, 21174019, 51161120361).

Abstract

original image

Graphene lite: A density of (2.1±0.3) mg cm−3, the lowest to date for a graphene framework architecture, is achieved by preparing an ultralight, N-doped, 3D graphene framework (see photo of a block of the material balancing on a dandelion). Its adsorption capacity for oils and organic solvents is much higher than that of the best carbonaceous sorbents, and it is a promising electrode material for supercapacitors (484 F g−1) and as a metal-free catalyst for the oxygen reduction reaction.

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