A novel Ni3N/graphene nanocomposite as supercapacitor electrode material with high capacitance and energy density
文献类型：期刊论文
| 作者 | Yu, Yu1; Gao, Wenyu1; Shen, Zongxu1; Zheng, Qing1; Wu, Hao1; Wang, Xi1; Song, Weiguo2; Ding, Kejian1 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2015 |
| 卷号 | 3期号:32页码:16633-16641 |
| 英文摘要 | A novel Ni3N/graphene nanocomposite of small Ni3N nanoparticles anchoring on the reduced graphene oxide nanosheets has been successfully synthesized. Due to the quite small size of Ni3N nanocrystals, the surface for faradic redox reaction of pseudocapacitive materials dramatically increases. The main issue of the volume change obstructing the pseudo-supercapacitor performance is concurrently resolved by the tight attachment of Ni3N nanoparticles with flexible texture. Importantly, the two-step oxidation/reduction reaction between Ni(I) and Ni(III) endows this nanocomposite with large capacitance by providing more faradic charge. The kind of electrode material behaves excellently both in three-electrode and asymmetric supercapacitors. The biggest specific capacitance reaches to 2087.5 F g(-1) (at 1 A g(-1)), and its asymmetric supercapacitor cell with ethylene glycol modified RGO as negative electrode has a high energy density (50.5 W h kg(-1) at 800 W kg(-1)). The cell capacitance retention exceeds 80% after 5000 cycles at different high current densities, showing its promising prospects for high-energy supercapacitors. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2015-10-27 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/27741]  |
| 专题 | 化学研究所_分子纳米结构与纳米技术实验室 |
| 作者单位 | 1.Beijing Jiaotong Univ, Sch Sci, Beijing 100044, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Yu,Gao, Wenyu,Shen, Zongxu,et al. A novel Ni3N/graphene nanocomposite as supercapacitor electrode material with high capacitance and energy density[J]. JOURNAL OF MATERIALS CHEMISTRY A,2015,3(32):16633-16641. |
| APA | Yu, Yu.,Gao, Wenyu.,Shen, Zongxu.,Zheng, Qing.,Wu, Hao.,...&Ding, Kejian.(2015).A novel Ni3N/graphene nanocomposite as supercapacitor electrode material with high capacitance and energy density.JOURNAL OF MATERIALS CHEMISTRY A,3(32),16633-16641. |
| MLA | Yu, Yu,et al."A novel Ni3N/graphene nanocomposite as supercapacitor electrode material with high capacitance and energy density".JOURNAL OF MATERIALS CHEMISTRY A 3.32(2015):16633-16641. |
入库方式： OAI收割
来源：化学研究所
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