KMS Chongqing Institute of Green and Intelligent Technology, CAS
| A facile strategy of in-situ anchoring of Co3O4 on N doped carbon cloth for an ultrahigh electrochemical performance | |
Lu, Junlin1; Li, Jien1; Wan, Jing1; Han, Xiangyu1; Ji, Peiyuan1; Luo, Shuang1; Gu, Mingxin2; Wei, Dapeng2  ; Hu, Chenguo1
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| 2020-12-03 | |
| 摘要 | Enhancement of supercapacitors (SCs) with high-energy density and high-power density is still a great challenge. In this paper, a facile strategy for in situ anchoring of Co3O4 particles on N doped carbon cloth (pCoNCC) is reported. Due to the interaction of the doped N and Co3O4, the electrochemical performance improves significantly, reaching 1,940.13 mF.cm(-2) at 1 mA.cm(-2) and energy density of 172.46 mu Wh.cm(-2) at the power density of 400 mu W.cm(-2), much larger than that without N doping electrode of 28.5 mF.cm(-2). An aqueous symmetric supercapacitor (ASSC) assembled by two pCoNCC electrodes achieves a maximum energy density of 447.42 mu Wh.cm(-2) and a highest power density of 8,000 mu W.cm(-2). Utilizing such a high-energy storage ASSC, a digital watch and a temperature-humidity detector are powered for nearly 1 and 2 h, respectively. Moreover, the ASSC displays a superb electrochemical stability of 87.7% retention after 10,000 cycles at 40 mA.cm(-2). This work would provide a new sight to enhance active materials performance and be beneficial for the future energy storage and supply systems. |
| 关键词 | Co3O4 N doping carbon cloth supercapacitor |
| DOI | 10.1007/s12274-019-3242-6 |
| 发表期刊 | NANO RESEARCH
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| ISSN | 1998-0124 |
| 页码 | 8 |
| 通讯作者 | Wei, Dapeng(dpwei@cigit.ac.cn) ; Hu, Chenguo(hucg@cqu.edu.cn) |
| 收录类别 | SCI |
| WOS记录号 | WOS:000601145500001 |
| 语种 | 英语 |
