Meso- and micro- porous composite carbons derived from humic acid for supercapacitors | |
Yin, Jiao; Zhang, Duanyi; Zhao, Jiquan; Wang, Xiaolei; Zhu, Hui; Wang, Chuanyi | |
刊名 | Electrochimica Acta |
2014 | |
卷号 | 136期号:8页码:504-512 |
关键词 | composite porous carbons humic acid supercapacitors |
ISSN号 | 134686 |
英文摘要 | Herein, humic acid (HA), a kind of biomass (natural polymer), is firstly adopted as a raw material for synthesis of activated carbons (ACs) via a high-temperature activation procedure with KOH. Their porous textures as well as surface groups are fully characterized by N2 sorption isothermal analysis, SEM, TEM, XPS and IR, respectively. The HA-derived ACs show very high specific surface areas (up to 2990.32 m2g-1). Furthermore, electrochemical studies such as cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and galvanostatic charge/discharge (GCD) are carried out to evaluate their specific capacitance and rate capability. It reveals that HA-derived ACs possess high specific capacitance (350 Fg -1) at a scan rate of 5 mV s-1 in 1 M H2SO 4. Moreover, supercapacitors based on HA-derived ACs demonstrate good cycling stability in which the 92% initial capacitance has been retained even after 9000 cycle numbers at a high current density of 1 A g-1. |
收录类别 | SCI |
WOS记录号 | WOS:000340320800061 |
公开日期 | 2014-11-11 |
内容类型 | 期刊论文 |
源URL | [http://ir.xjipc.cas.cn/handle/365002/3754] |
专题 | 新疆理化技术研究所_环境科学与技术研究室 |
作者单位 | Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Key Lab Funct Mat & Devices Special Environm, Urumqi 830011, Xinjiang, Peoples R China;Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China;Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Lab Ecomat & Sustainable Technol LEMST, Urumqi 830011, Xinjiang, Peoples R China;Hebei Univ Technol, Sch Chem Engn & Technol, Tianjin 300130, Peoples R China |
推荐引用方式 GB/T 7714 | Yin, Jiao,Zhang, Duanyi,Zhao, Jiquan,et al. Meso- and micro- porous composite carbons derived from humic acid for supercapacitors[J]. Electrochimica Acta,2014,136(8):504-512. |
APA | Yin, Jiao,Zhang, Duanyi,Zhao, Jiquan,Wang, Xiaolei,Zhu, Hui,&Wang, Chuanyi.(2014).Meso- and micro- porous composite carbons derived from humic acid for supercapacitors.Electrochimica Acta,136(8),504-512. |
MLA | Yin, Jiao,et al."Meso- and micro- porous composite carbons derived from humic acid for supercapacitors".Electrochimica Acta 136.8(2014):504-512. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论