Acetic Acid Assistant Hydrogenation of Graphene Sheets with Ferromagnetism |
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Authors: | SUN Qiushi WANG Xiaofeng LI Benxian WU Yunpeng ZHANG Ziqing ZHANG Xinyang ZHAO Xudong LIU Xiaoyang |
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Institution: | State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China |
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Abstract: | Ferromagnetism of pure carbon-based materials has been widely researched for several years. In therocially and experimentally, semi-hydrogenation graphene sheets exhibit ferromagnitism, which is related to the degree of hydrogenation. Here we reported the controllable hydrogenation of graphene using ball-milling method with acetic acid as hydrogenating agent. The hydrogenation graphene sheets were characterized by means of transmission electron microscopy(TEM), Raman spectroscopy and X-ray photoelectron spectroscopy, and magnetic measurement. The relusts of Raman spectroscopy demonstrate that the relative intensity of D band increases with the hydrogenation degree. The resluts of magnetic meansurement indicate the maximal magnetic moment of 0.274 A·m2/kg at 2 K for semi-hydrogenation graphene. |
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Keywords: | Graphene Hydrogenated graphene Ball-milling Ferromagnetism |
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