期刊
CARBON
卷 87, 期 -, 页码 186-192出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2015.01.063
关键词
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资金
- National Research Foundation of Korea (NRF) grant of the Korea government (MSIP) through GCRC-SOP [2011-0030013]
- Industrial Strategic Technology Development Program - Ministry of Knowledge Economy (MKE, Korea) [10038606]
- Korea Evaluation Institute of Industrial Technology (KEIT) [10038606] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
We report a fast and facile microwave technique to synthesize nitrogen-doped carbon nanotubes anchored on graphene substrates from azobis(cyclohexanecarbonitrile), a commodity chemical, commonly used as a radical initiator in polymerization reactions as the nanotube precursor. Micrometer-long, nitrogen-doped carbon nanotubes vertically anchored on graphene was obtained to produce mesoporous, hierarchical nanostructures. X-ray photoelectron spectroscopy reveals that nitrogen moieties exist as pyridinic and graphitic nitrogen. When applied as anodes in lithium-ion batteries, our materials exhibit a high capacity of 1342 mA h g(-1) even after prolonged cycling reflecting the ability of the three-dimensional network to accommodate the extreme volume changes occurring during the lithiation/delithiation reactions. (C) 2015 Elsevier Ltd. All rights reserved.
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