Graphene nanosheet–titanium nitride nanocomposite for high performance electrochemical capacitors without extra conductive agent addition | |
Han, P.; Yue, Y.; Wang, X.; Ma, W.; Dong, S.; Zhang, K.; Cui, G. | |
2012 | |
发表期刊 | Journal of Materials Chemistry |
卷号 | 22期号:47页码:24918 |
其他摘要 | ; 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 1MLiPF6–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. |
学科领域 | 仿生能源系统 |
收录类别 | SCI |
语种 | 英语 |
文献类型 | 期刊论文 |
条目标识符 | http://ir.qibebt.ac.cn/handle/337004/1731 |
专题 | 仿生与固态能源系统研究组 |
推荐引用方式 GB/T 7714 | Han, P.,Yue, Y.,Wang, X.,等. Graphene nanosheet–titanium nitride nanocomposite for high performance electrochemical capacitors without extra conductive agent addition[J]. Journal of Materials Chemistry,2012,22(47):24918. |
APA | Han, P..,Yue, Y..,Wang, X..,Ma, W..,Dong, S..,...&Cui, G..(2012).Graphene nanosheet–titanium nitride nanocomposite for high performance electrochemical capacitors without extra conductive agent addition.Journal of Materials Chemistry,22(47),24918. |
MLA | Han, P.,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. |
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