Hierarchically Porous Carbons Derived from Cotton Stalks for High-Performance Supercapacitors
Kang, XN (Kang, Xiaonan); Wang, CY (Wang, Chuanyi); Yin, J (Yin, Jiao)
2017
发表期刊CHEMELECTROCHEM
卷号4期号:10页码:2599-2607
摘要

In this work, cotton stalks (CSs), as an earth-abundant biomass, were originally proposed as a new carbonaceous precursor to prepare hierarchically porous carbons (HPCs) with the activation of various concentrations of H3PO4 at high temperatures. A variety of measurements including SEM, TEM, N-2 adsorption/desorption analysis, XPS and FTIR have been adopted to systemically investigate the micromorphology, pore structure, and surface chemistry of the HPCs. The CS-derived HPCs (CSHPCs) have large specific surface areas up to 1403.123m(2)g(-1) and a broad pore-size distribution indicates their hierarchically porous structures. Furthermore, electrochemical measurements including electrochemical impedance spectroscopy, galvanostatic charge/discharge and cyclic voltammetry were used to evaluate the capacitance and rate performance of the HPCs. The investigations illustrated that CSHPCs possess a high specific capacitance up to 175Fg(-1) at a scan rate of 5mVs(-1) in 2M KOH. In addition, CSHPCs have good long-term cycling stability and more than 90% of the initial capacity is retained after 10000 cycles at a large current density of 1Ag(-1).

关键词Cotton Stalk Hierarchically Porous Materials Activated Carbon Supercapacitors
DOI10.1002/celc.201700501
收录类别SCI
WOS记录号WOS:000412892600026
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/5034
专题中国科学院特殊环境功能材料与器件重点试验室
作者单位1.Shihezi Univ, Sch Chem & Chem Engn, Shihezi 832003, Peoples R China
2.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Key Lab Funct Mat & Devices Special Environm, 40-1 South Beijing Rd, Urumqi 830011, Xinjiang, Peoples R China
3.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Lab Ecomat & Sustainable Technol LEMST, 40-1 South Beijing Rd, Urumqi 830011, Xinjiang, Peoples R China
推荐引用方式
GB/T 7714
Kang, XN ,Wang, CY ,Yin, J . Hierarchically Porous Carbons Derived from Cotton Stalks for High-Performance Supercapacitors[J]. CHEMELECTROCHEM,2017,4(10):2599-2607.
APA Kang, XN ,Wang, CY ,&Yin, J .(2017).Hierarchically Porous Carbons Derived from Cotton Stalks for High-Performance Supercapacitors.CHEMELECTROCHEM,4(10),2599-2607.
MLA Kang, XN ,et al."Hierarchically Porous Carbons Derived from Cotton Stalks for High-Performance Supercapacitors".CHEMELECTROCHEM 4.10(2017):2599-2607.
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