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[1]朱珍妮,熊惠之,喻湘华,等.氮掺杂石墨烯/聚苯胺复合凝胶的制备与性能[J].武汉工程大学学报,2017,39(05):455-460.[doi:10. 3969/j. issn. 1674?2869. 2017. 05. 009]
　ZHU Zhenni,XIONG Huizhi,YU Xianghua,et al. Preparation of Nitrogen-Doped Graphene/Polyaniline Composite Hydrogels and Their Performance[J].Journal of Wuhan Institute of Technology,2017,39(05):455-460.[doi:10. 3969/j. issn. 1674?2869. 2017. 05. 009]
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氮掺杂石墨烯/聚苯胺复合凝胶的制备与性能(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
39
期数:
2017年05期
页码:
455-460
栏目:
材料科学与工程
出版日期:
2017-12-19

文章信息/Info

Title:
  Preparation of Nitrogen-Doped Graphene/Polyaniline Composite Hydrogels and Their Performance
文章编号:
20170509
作者:
朱珍妮; 熊惠之; 喻湘华; 李　亮*
武汉工程大学材料科学与工程学院，湖北 武汉 430205
Author(s):
ZHU Zhenni; XIONG Huizhi; YU Xianghua; LI Liang*
School of Materials Science and Engineering，Wuhan Institute of Technology，Wuhan 430205，China
关键词:
石墨烯; 聚苯胺; 凝胶; 电化学性能; 超级电容器
Keywords:
nitrogen-doped graphene;  polyaniline;  composite;  hydrogel;  supercapacitor
分类号:
O633
DOI:
10. 3969/j. issn. 1674?2869. 2017. 05. 009
文献标志码:
A
摘要:
为了拓展石墨烯凝胶在超级电容器方面的应用，采用氨水与水合肼作为掺杂剂和还原剂，通过与氧化石墨烯的水热反应制备了氮掺杂石墨烯凝胶，并进一步运用原位聚合的方法在氮掺杂石墨烯凝胶上负载聚苯胺，得到氮掺杂石墨烯/聚苯胺复合凝胶. 利用X射线衍射、扫描电子显微镜对产物的结构和微观形貌进行表征，采用循环伏安、恒电流充放电等方法测试其电化学性能. 结果表明，氮掺杂石墨烯/聚苯胺复合凝胶与纯氮掺杂石墨烯凝胶相比，电化学性能有显著的提高. 当扫描速率为10 mV/s时，复合凝胶的比电容约为500 F/g；在恒电流充放电实验中，当电流密度增加到10 A/g时，复合凝胶的比电容仍然保持在约400 F/g. 当循环伏安扫描1 000圈后，比电容的保持率达到80%. 这些表明氮掺杂石墨烯/聚苯胺复合凝胶拥有突出的电化学性能，也表明了氮掺杂石墨烯/聚苯胺在超级电容器方面将会有很好的应用前景.
Abstract:
For the development of graphene hydrogel in supercapacitors，nitrogen-doped graphene hydrogels were first prepared by the hydrothermal method using ammonia and hydrazine hydrate as the nitrogen resource and reducing agent，respectively. Then， the nitrogen-doped grapheme/polyaniline composite hydrogels were synthesized by in-situ polymerization of aniline monomer into nitrogen-doped grapheme hydrogel. X-ray diffraction and scanning electron microscopy were used to characterize the structure and microstructure of the products. The electrochemical performances were tested by cyclic voltammetry and galvanostatic charge-discharge. The results show that nitrogen-doped graphene/polyaniline composite hydrogel possesses better electrochemical performance than pure nitrogen-doped graphene gel. The specific capacitance of nitrogen-doped graphene hydrogel is about 500 F/g at the scanning rate of 10 mV/s. It keeps about 400 F/g at current density of 10 A/g in the galvanostatic charge-discharge test. Nitrogen-doped graphene/polyaniline composite hydrogel retains more than 80% of its initial specific capacitance after 1 000 cycles of cyclic voltammetry. It indicates that nitrogen-doped graphene/polyaniline composite hydrogel has good electrochemical properties for the application of supercapacitor electrode in the future.

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备注/Memo

备注/Memo:
收稿日期：2017-02-19 基金项目：武汉工程大学第八届研究生创新基金（CX2016001）；2016年省级大学生创新创业训练计划项目（201610490019）作者简介：朱珍妮，硕士研究生. E-mail：[email protected]
更新日期/Last Update: 2017-10-25