From environmental pollutant to activated carbons for high-performance supercapacitors
Yin, J (Yin, Jiao); Zhu, YQ (Zhu, Yunqing); Yue, X (Yue, Xiu); Wang, L (Wang, Lan); Zhu, H (Zhu, Hui); Wang, CY (Wang, Chuanyi)
2016
Source PublicationELECTROCHIMICA ACTA
ISSN0013-4686
Volume201Issue:5Pages:96-105
Abstract

In this research, Methylene blue (MB), a type of environmental pollutants (dye), was initially adopted as a carbonaceous precursor to synthesize activated carbons (ACs) with the activation of ZnCl2 at high temperatures. Varieties of techniques have been used to characterize the MB-derived ACs. The pore structures and surface functional groups were fully studied by N-2 adsorption-desorption analysis, XPS, IR, SEM and TEM, respectively. The MB-derived ACs have as large specific surface area as up to 2151.92 m(2)g(-1) and the pore size distribution concentrates on 2-5 nm. Moreover, electrochemical techniques such as cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and galvanostatic charge/discharge (GCD) were employed to assess AC's capacitive behavior and rate performance. It demonstrated that MB-derived ACs possessed as high specific capacitance as 265 Fg(-1) at a scan rate of 5 mV s(-1) in 1 M H2SO4. In addition, the MB-derived ACs exhibited long-term cycling stability and more than 90% original capacity have been maintained after first 1000 cycles (the total cycles of 10000 were carried out.) at a high current density of 1 Ag-1.

KeywordEnvironmental Pollutant Methylene Blue Activated Carbons Supercapacitors
DOI10.1016/j.electacta.2016.03.196
Indexed BySCI
WOS IDWOS:000375132500011
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/4660
Collection中国科学院特殊环境功能材料与器件重点试验室
Affiliation1.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
2.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Lab Ecomat & Sustainable Technol LEMST, 40-1 South Beijing Rd, Urumqi 830011, Xinjiang, Peoples R China
3.Nanchang Univ, Coll Chem, Inst Polymers, 999 Xuefu Ave, Nanchang 330031, Peoples R China
4.Nanchang Univ, Jiangxi Prov Key Lab New Energy Chem, 999 Xuefu Ave, Nanchang 330031, Peoples R China
Recommended Citation
GB/T 7714
Yin, J ,Zhu, YQ ,Yue, X ,et al. From environmental pollutant to activated carbons for high-performance supercapacitors[J]. ELECTROCHIMICA ACTA,2016,201(5):96-105.
APA Yin, J ,Zhu, YQ ,Yue, X ,Wang, L ,Zhu, H ,&Wang, CY .(2016).From environmental pollutant to activated carbons for high-performance supercapacitors.ELECTROCHIMICA ACTA,201(5),96-105.
MLA Yin, J ,et al."From environmental pollutant to activated carbons for high-performance supercapacitors".ELECTROCHIMICA ACTA 201.5(2016):96-105.
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