| 石墨烯／ZnO／聚苯胺复合材料的制备及其储锂性能的研究 |
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| 引用本文： | 张利锋,张金振,宋巧兰,何蕾.石墨烯／ZnO／聚苯胺复合材料的制备及其储锂性能的研究[J].西北轻工业学院学报,2013(6):67-72. |
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| 作者姓名： | 张利锋 张金振 宋巧兰 何蕾 |
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| 作者单位： | [1]陕西科技大学材料科学与工程学院,陕西西安710021 [2]广东海洋大学食品科技学院,广东湛江524088 |
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| 基金项目： | 国家自然科学基金项目（21203116）;陕西省科技厅自然科学基金项目（2013JQ2018）;陕西省教育厅科研计划项目（2013JK0934）;陕西科技大学“三秦学者”科研启动基金项目（BJ11-26）;陕西科技大学博士科研启动基金项目（BJ12-09）;2012国家级大学生创新创业训练计划项目（201210708016） |
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| 摘 要： | 以六水合硝酸锌、石墨及苯胺为原料，采用传统水热一原位聚合两步法首次制备了石墨烯／ZnO／聚苯胺复合材料．通过XRD、SEM、FT—IR、TG等分析方法对产物进行表征，并测试了该复合材料的储锂能力和循环稳定性．实验结果表明：ZnO以纳米棒状结构均匀分布在石墨烯表面，聚苯胺包裹在石墨烯／ZnO的表面形成石墨烯／znO／聚苯胺复合材料．电化学性能测试结果表明：石墨烯的存在可有效提高ZnO的导电性，同时聚苯胺柔性分子链可有效缓冲ZnO在充放电过程中的体积效应，对电极材料的循环稳定性起到了至关重要的作用．
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| 关 键 词： | 石墨烯 ZnO 聚苯胺 复合材料 |
Preparation of graphene/ZnO/polyaniline composites and research on lithium storage performance |
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| ZHANG Li-fengI,ZHANG Jin-zhen,SONG Qiao-lan,HE Lei.Preparation of graphene/ZnO/polyaniline composites and research on lithium storage performance[J].Journal of Northwest University of Light Industry,2013(6):67-72. |
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| Authors: | ZHANG Li-fengI ZHANG Jin-zhen SONG Qiao-lan HE Lei |
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| Affiliation: | 1. College of Materials Science and Engineering, Shaanxi University of Science Technology, Xi＇an 710021, China; 2. College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China) |
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| Abstract: | Graphene/ZnO/polyaniline composite materials were synthesized for the first time by two-step method of traditional hydrothermal and in situ polymerization with Zn（NO3）2 · 6H2O,graphite and aniline as raw materials. The physical and chemical properties of gra- phene/ZnO/polyaniline composite materials were studied by XRD, SEM, FT-IR and TG. The electrochemical properties of as-prepared products were evaluated by galvanostatic charge- discharge tests. The experimental results showed that the ZnO nanorod attached on the sur- face of graphene matrix. Polyaniline covered graphene/ZnO to form graphene/ZnO/polyani- line composite materials. Electrochemical property research showed that the present of gra- phene can effectively improve the conductivity of ZnO. Simultaneously, the flexible chains of polyaniline can reduce the volume effect of ZnO during charge-discharge process, which play a crucial role for its cycling stability. |
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| Keywords: | graphene ZnO polyaniline composite materials |
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