Biomass derived hierarchically porous and heteroatom-doped carbons for supercapacitors
Kang, XN (Kang, Xiaonan); Zhu, H (Zhu, Hui); Wang, CY (Wang, Chuanyi); Sun, K (Sun, Kang); Yin, J (Yin, Jiao)
2018
发表期刊JOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN0021-9797
卷号509期号:1页码:369-383
摘要

In this research, Rapeseed dregs (RDs), as a byproduct of agriculture (derived from processing of rapeseed for oil production), were originally employed as a new carbonaceous precursor to synthesize hierarchically porous and heteroatom-doped activated carbons (ACs) with the activation of ZnCl2 at various high temperatures. A variety of measurements have been adopted to systemically characterize the RD-derived ACs. The micro-morphology, pore structures and surface chemistry property were fully investigated by SEM, TEM, XRD, Raman, N-2 adsorption-desorption analysis, XPS and IR, respectively. The RD-derived ACs possess as large specific surface area as up to 1416.966 m(2) g(-1) and the pore size distribution concentrates on 1-2, 2-5, 5-15 and 25-35 nm, indicating their hierarchically porous structures. Furthermore, electrochemical measurements including electrochemical impedance spectroscopy (EIS), galvanostatic charge/discharge (GCD) and cyclic voltammetry (CV) were conducted to estimate RDAC's supercapacitive performance and rate capability. The investigations illustrated that RD derived ACs reached as high specific capacitance as 170.5 and 153.2 F g(-1) at a scan rate of 5 mV s(-1) in 1 M H2SO4 and 1 M Et4NBF4/AN, respectively. In addition, the RD-derived ACs demonstrated good long-term cycling stability and more than 90% initial capacity have been retained after 6400 cycles at a large current density of 1 A g(-1).

关键词Rapeseed Dregs Hierarchically Porous Heteroatom-doped
DOI10.1016/j.jcis.2017.09.013
收录类别SCI
WOS记录号WOS:000413389900040
引用统计
被引频次:7[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/365002/5068
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.CAF, Inst Chem Ind Forest Prod, Natl Engn Lab Biomass Chem Utilizat, Key & Open Lab Forest Chem Engn,SFA, Nanjing 210042, Jiangsu, 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, Lab Ecomat & Sustainable Technol LEMST, Xinjiang Tech Inst Phys & Chem, 40-1 South Beijing Rd, Urumqi 830011, Xinjiang, Peoples R China
4.Shihezi Univ, Sch Chem & Chem Engn, Shihezi 832003, Peoples R China
5.Nanchang Univ, Coll Chem, 999 Xuefu Ave, Nanchang 330031, Jiangxi, Peoples R China
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Kang, XN ,Zhu, H ,Wang, CY ,et al. Biomass derived hierarchically porous and heteroatom-doped carbons for supercapacitors[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2018,509(1):369-383.
APA Kang, XN ,Zhu, H ,Wang, CY ,Sun, K ,&Yin, J .(2018).Biomass derived hierarchically porous and heteroatom-doped carbons for supercapacitors.JOURNAL OF COLLOID AND INTERFACE SCIENCE,509(1),369-383.
MLA Kang, XN ,et al."Biomass derived hierarchically porous and heteroatom-doped carbons for supercapacitors".JOURNAL OF COLLOID AND INTERFACE SCIENCE 509.1(2018):369-383.
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