Facile preparation of nitrogen/sulfur co-doped and hierarchical porous graphene hydrogel for high-performance electrochemical capacitor.
文献类型：期刊论文
| 作者 | Li, Jinhui; Zhang, Guoping; Fu, Chaopeng; Deng, Libo; Sun, Rong; Wong, Ching-Ping |
| 刊名 | JOURNAL OF POWER SOURCES
 |
| 出版日期 | 2017 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Nitrogen/sulfur co-doped and hierarchical porous graphene hydrogels (DHGHs) are prepared by facile self-assembly process. The results show that the pH values of preparation process significantly affect the microstructures and electrochemical properties of DHGHs and the mechanism has been discussed. The as-prepared DHGHs can be directly used as binder-free electrodes to assemble full-cell supercapacitor devices. It is surprising that the DHGHs prepared at basic condition (DHGH-12) delivers a specific capacitance of 251 F g(-1) (0.5 A g(-1)). Moreover, the DHGH-12 shows rectangular cyclic voltammetry shape at a high scan rate of 3000 mV s(-1) and symmetrical galvanostatic charge/discharge curves at 100 A g(-1) which exhibits a specific capacitance of 136.5 F g(-1), a high energy density of 4.74 Wh kg(-1) and high power density of 25.47 kW kg(-I). Additionally, DHGH-12 presents superior cycling stability (96.8% retention after 2000 cycles at 20 A g(-1)) in 6 M ICOH solution. Therefore, the novel DHGHs can be considered as promising candidate for high energy density supercapacitors at high rates. (C) 2017 Elsevier B.V. All rights reserved. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/11674]  |
| 专题 | 深圳先进技术研究院_集成所 |
| 作者单位 | JOURNAL OF POWER SOURCES |
| 推荐引用方式 GB/T 7714 | Li, Jinhui,Zhang, Guoping,Fu, Chaopeng,et al. Facile preparation of nitrogen/sulfur co-doped and hierarchical porous graphene hydrogel for high-performance electrochemical capacitor.[J]. JOURNAL OF POWER SOURCES,2017. |
| APA | Li, Jinhui,Zhang, Guoping,Fu, Chaopeng,Deng, Libo,Sun, Rong,&Wong, Ching-Ping.(2017).Facile preparation of nitrogen/sulfur co-doped and hierarchical porous graphene hydrogel for high-performance electrochemical capacitor..JOURNAL OF POWER SOURCES. |
| MLA | Li, Jinhui,et al."Facile preparation of nitrogen/sulfur co-doped and hierarchical porous graphene hydrogel for high-performance electrochemical capacitor.".JOURNAL OF POWER SOURCES (2017). |
入库方式： OAI收割
来源：深圳先进技术研究院
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