三维石墨烯/碳纳米管复合材料的制备及超电容性能研究
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- 英文论文题名：Preparation and supercapacitor property of 3D graphene/CNT composite
- 论文作者：赵廷凯 ; 金文博 ; 郭新爱 ; 吉祥麟 ; 党阿磊 ; 李昊 ; 李铁虎
- 英文论文作者：Tingkai Zhao ; Wenbo Jin ; Xinai Guo ; Xianglin Ji ; Alei Dang ; Hao Li ; Tiehu Li ; School of Materials Science and Engineering ; Northwestern Polytechnical University
- 年：2016
- 作者机构：西北工业大学材料学院;
- 论文关键词：石墨烯 ; 碳纳米管 ; 复合材料 ; 超级电容器
- 英文论文关键词：Graphene ; Carbon Nanotubes ; Composites ; Supercapacitor
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十九分会：纳米碳材料
- 语种：中文
- 分类号：TB332;TM53
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十九分会 ; 纳米碳材料
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：209k
- 原文格式：D
- 会议级别：全国
摘要
使用二茂铁和二甲苯混合物作为催化剂,采用化学气相沉积法原位在泡沫镍基体上直接制备出三维石墨烯/碳纳米管复合材料。运用扫描电子显微镜和透射电子显微镜表征样品的形貌和微观结构,电化学工作站测试分析样品的超电容性能。实验结果表明,三维石墨烯/碳纳米管复合材料作为超级电容器电极材料具有较高的比电容,在运用1.5 M Li_2SO_4作为电解液时,其比电容可达到290 F/g,2000次循环后其比电容仍旧保持92%,且该复合材料具有优异的循环稳定性。
The 3D graphene/CNT composite was directly grown on nickel foam as the substrate material via in-situ chemical vapor deposition(CVD) growth process using ferrocene and xylene mixture solutions as catalysts~([1,2]). The morphology and microstructure of the resulting samples were characterized using scanning electron microscopy(SEM) and transmission electron microscopy(TEM), CHI650 D electrochemical workstation, and the supercapacitor performance of the samples were investigated by cyclic voltammetry and AC impedance. The experimental results indicated that the 3D graphene/CNT composite, as good supercapacitor electrode material, exhibits a maximum specific capacitance of 290 F/g using 1.5 M Li_2SO_4 as the electrolyte, and the capacitance remains 92% after 2000 cycles. The 3D graphene/CNT composite has excellent cycling stability~([3]).
The 3D graphene/CNT composite was directly grown on nickel foam as the substrate material via in-situ chemical vapor deposition(CVD) growth process using ferrocene and xylene mixture solutions as catalysts~([1,2]). The morphology and microstructure of the resulting samples were characterized using scanning electron microscopy(SEM) and transmission electron microscopy(TEM), CHI650 D electrochemical workstation, and the supercapacitor performance of the samples were investigated by cyclic voltammetry and AC impedance. The experimental results indicated that the 3D graphene/CNT composite, as good supercapacitor electrode material, exhibits a maximum specific capacitance of 290 F/g using 1.5 M Li_2SO_4 as the electrolyte, and the capacitance remains 92% after 2000 cycles. The 3D graphene/CNT composite has excellent cycling stability~([3]).
引文
[1]Burke,A.Journal of power sources,2000,91:37-50.
[2]Wang,Y.;Shi,Z.;Huang,Y.;et al.The Journal of Physical Chemistry C,2009,113:13103-13107.
[3]Du,X.;Guo,P.;Song,H.;et al.Electrochimica Acta,2010,55:4812-4819.
[2]Wang,Y.;Shi,Z.;Huang,Y.;et al.The Journal of Physical Chemistry C,2009,113:13103-13107.
[3]Du,X.;Guo,P.;Song,H.;et al.Electrochimica Acta,2010,55:4812-4819.