Free‐Radical‐Promoted Conversion of Graphite Oxide into Chemically Modified Graphene |
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| Authors: | Na‐Na Chai Jing Zeng Kai‐Ge Zhou Yu‐Long Xie Hang‐Xing Wang Prof?Dr Hao‐Li Zhang Chen Xu Ji‐Xin Zhu Prof?Dr Qing‐Yu Yan |
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| Institution: | 1. State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou (China), Fax: (+86)?931‐8912365;2. School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798 (Singapore);3. TUM CREATE Research Centre@NTU, Nanyang Technological University, Singapore 637459 (Singapore) |
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| Abstract: | The preparation of chemically modified graphene (CMG) generally involves the reduction of graphite oxide (GO) by using various reducing reagents. Herein, we report a free‐radical‐promoted synthesis of CMG, which does not require any conventional reductant. We demonstrated that the phenyl free radical can efficiently promote the conversion of GO into CMG under mild conditions and produces phenyl‐functionalized CMG. This pseudo‐“reduction” process is attributed to a free‐radical‐mediated elimination of the surface‐attached oxygen‐containing functionalities. This work illustrates a new strategy for preparing CMG that is alternative to the conventional means of chemical reduction. Furthermore, the phenyl‐functionalized graphene shows an excellent performance as an electrode material for lithium‐battery applications. |
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| Keywords: | graphene graphite radicals lithium batteries peroxides |
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