Synthesis of hierarchically porous carbon spheres by an emulsification-crosslinking method and their application in supercapacitors | |
Department | 固体润滑国家重点实验室 |
Zhang, Dingjun1,2; Gao, Jiechang1,2; Li ZP(李章朋)3; He SH(何淑花)3; Wang JQ(王金清)3; Wang JQ(王金清) | |
2016 | |
Source Publication | RSC Advances |
ISSN | 2046-2069 |
Volume | 6Issue:60Pages:54880-54888 |
Abstract | Porous carbon materials have greatly developed as promising electrode materials for electric double-layer capacitors (EDLCs). Herein, hierarchically porous carbon spheres (HPCSs) were synthesized by using chitosan, glutaraldehyde and KOH as the carbon source, crosslinking agent and chemical activating agent, respectively. The morphology of the HPCSs was characterized by scanning electron microscopy and transmission electron microscopy, while the porous structural features, including high specific surface area (1974 m2 g−1), total pore volume (2.52 cm3 g−1) and wide pore-size distribution, were measured by nitrogen sorption technology. Electrochemical tests in a three-electrode cell indicated that the prepared HPCSs displayed excellent capacitive performances (328 F g−1), and good cycling stability with approximately 9% of capacitance reduction after 10000 times of cycling. Moreover, the electrochemical properties characterized in a two-electrode system indicated that the specific capacitance is 66.1 F g−1 at a current density of 0.5 A g−1, and the energy density is 8.3 W h kg−1 at a power density of 6 kW kg−1, demonstrating that the obtained HPCSs are a potential electrode material and met well the practical requirement for an EDLC. |
Subject Area | 材料科学与物理化学 |
DOI | 10.1039/c6ra04052g |
Funding Organization | the National Natural Science Foundation of China (Grant No. 51502306) |
Indexed By | SCI |
If | 3.108 |
Language | 英语 |
Funding Project | 聚合物摩擦学组 |
compositor | 第三作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/20130 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Wang JQ(王金清) |
Affiliation | 1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, Coll Mat Sci & Engn, Lanzhou 730050, Peoples R China 3.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China |
Recommended Citation GB/T 7714 | Zhang, Dingjun,Gao, Jiechang,Li ZP,et al. Synthesis of hierarchically porous carbon spheres by an emulsification-crosslinking method and their application in supercapacitors[J]. RSC Advances,2016,6(60):54880-54888. |
APA | Zhang, Dingjun,Gao, Jiechang,Li ZP,He SH,Wang JQ,&王金清.(2016).Synthesis of hierarchically porous carbon spheres by an emulsification-crosslinking method and their application in supercapacitors.RSC Advances,6(60),54880-54888. |
MLA | Zhang, Dingjun,et al."Synthesis of hierarchically porous carbon spheres by an emulsification-crosslinking method and their application in supercapacitors".RSC Advances 6.60(2016):54880-54888. |
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c6ra04052g.pdf(1166KB) | 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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