High-performance supercapacitors based on novel carbons derived from sterculia lychnophora | |
Department | 清洁能源化学与材料实验室 |
Zhang X(张旭); Peng C(彭超); Wang RT(王儒涛); Lang JW(郎俊伟); Lang JW(郎俊伟) | |
The second department | 固体润滑国家重点实验室 |
2015 | |
Source Publication | RSC Advances |
ISSN | 2046-2069 |
Volume | 5Pages:32159-32167 |
Abstract | In this paper, two nanoporous carbons were prepared from Sterculia lychnophora (SL) by simple hydrothermal conditions followed by a KOH activation step with and without a carbonization process. Structural characterization indicates that the carbon sample without the carbonization process (AC-1) exhibits a cross linked and hole-like structure, a BET surface area of 2589 m2 g−1, pore volume of 1.21 cm3 g−1 and BJH average pore width of 2.78 nm. The carbon sample with the carbonization process (AC-2) shows dozens of nanometer microspheres, a BET surface area of 2660 m2 g−1, pore volume of 1.258 cm3 g−1 and BJH average pore width of 3.321 nm. The electrochemical capacitance behaviors of these carbon materials were investigated in KOH and NaNO3 aqueous solutions in three and two-electrode cells, respectively. By using the NaNO3 electrolyte, the efficient capacitor can work in a wider voltage window of 1.7 V without any significant capacitance fading over 3000 cycles; the highest specific capacitance of 47.8 F g−1 and energy density of 18.5 W h kg−1 are demonstrated. The desirable porous structure and electrochemical characteristics may enable SL biomass based carbon to be excellent electrode materials for high performance electrical energy storage devices. |
Subject Area | 材料科学与物理化学 |
DOI | 10.1039/c5ra02085a |
Funding Organization | the National defense Basic Scientific Research Project of China (B1320133001);the National Nature Science Foundations of China (21203223;21201171) |
Indexed By | SCI |
If | 3.289 |
Language | 英语 |
Funding Project | 低维材料与化学储能课题组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/19465 |
Collection | 清洁能源化学与材料实验室 固体润滑国家重点实验室(LSL) |
Corresponding Author | Lang JW(郎俊伟) |
Affiliation | Laboratory of Clean Energy Chemistry and Materials, State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China |
Recommended Citation GB/T 7714 | Zhang X,Peng C,Wang RT,et al. High-performance supercapacitors based on novel carbons derived from sterculia lychnophora[J]. RSC Advances,2015,5:32159-32167. |
APA | Zhang X,Peng C,Wang RT,Lang JW,&郎俊伟.(2015).High-performance supercapacitors based on novel carbons derived from sterculia lychnophora.RSC Advances,5,32159-32167. |
MLA | Zhang X,et al."High-performance supercapacitors based on novel carbons derived from sterculia lychnophora".RSC Advances 5(2015):32159-32167. |
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RSC.pdf(1119KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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