Graphene nanosheet-titanium nitride nanocomposite for high performance electrochemical capacitors without extra conductive agent addition

doi:10.1039/c2jm35485c

QIBEBT-IR > 仿生与固态能源系统研究组

	Graphene nanosheet-titanium nitride nanocomposite for high performance electrochemical capacitors without extra conductive agent addition
	Han, Pengxian; Yue, Yanhua; Wang, Xiaogang; Ma, Wen; Dong, Shanmu; Zhang, Kejun; Zhang, Chuanjian; Cui, Guanglei
	2012
发表期刊	JOURNAL OF MATERIALS CHEMISTRY
卷号	22 期号:47 页码:24918-24923
摘要	A graphene nanosheet-titanium nitride (G-TiN) nanocomposite has been fabricated through a simple in situ hydrolysis method combined with ammonia annealing. TiN nanoparticles are homogeneously anchored on G, which is beneficial for the formation of a porous structure and the enhancement of electrical conductivity perpendicular to the graphene layers. Such a texture allows for the fast accessibility of ions and rapid transfer of electrons. In 1 M LiPF6-EC : DEC (vol. 1 : 1) electrolyte, the specific capacitances of the electrochemical capacitors (ECs) assembled without extra conductive agent addition, are 560 and 132 F g(-1) at current densities of 0.1 and 4 A g(-1), respectively. Meanwhile, high energy densities of 162 and 81 W h kg(-1) are obtained at power densities of 150 and 934 W kg(-1), respectively. Even at a higher power density of 4367 W kg(-1), a remarkable energy density of 41 W h kg(-1) is delivered. The unique characteristic of G-TiN endows the ECs with high energy density and power density, due to the combination of electric double layer capacitance and lithium ion intercalation capacitance.
文章类型	Article
WOS标题词	Science & Technology ; Physical Sciences ; Technology
DOI	10.1039/c2jm35485c
关键词[WOS]	LITHIUM-ION BATTERIES ; ENERGY-STORAGE ; SUPERCAPACITORS ; ELECTRODES ; FACILE
收录类别	SCI
语种	英语
WOS研究方向	Chemistry ; Materials Science
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary
WOS记录号	WOS:000311808200056
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/6348
专题	仿生与固态能源系统研究组
作者单位	Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
推荐引用方式 GB/T 7714	Han, Pengxian,Yue, Yanhua,Wang, Xiaogang,et al. Graphene nanosheet-titanium nitride nanocomposite for high performance electrochemical capacitors without extra conductive agent addition[J]. JOURNAL OF MATERIALS CHEMISTRY,2012,22(47):24918-24923.
APA	Han, Pengxian.,Yue, Yanhua.,Wang, Xiaogang.,Ma, Wen.,Dong, Shanmu.,...&Cui, Guanglei.(2012).Graphene nanosheet-titanium nitride nanocomposite for high performance electrochemical capacitors without extra conductive agent addition.JOURNAL OF MATERIALS CHEMISTRY,22(47),24918-24923.
MLA	Han, Pengxian,et al."Graphene nanosheet-titanium nitride nanocomposite for high performance electrochemical capacitors without extra conductive agent addition".JOURNAL OF MATERIALS CHEMISTRY 22.47(2012):24918-24923.