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Interconnected Phosphorus and Nitrogen Codoped Porous Exfoliated Carbon Nanosheets for High-Rate Supercapacitors
Jin, Jutao1; Qiao, Xiaochang1; Zhou, Feng2; Wu, Zhong-Shuai2; Cui, Lifeng1; Fan, Hongbo1
KeywordPhosphorus And Nitrogen Codoped Exfoliated Carbon Nanosheets High Rate Supercapacitor Cycle Stability
Source PublicationACS APPLIED MATERIALS & INTERFACES
2017-05-24
DOI10.1021/acsami.7b00617
Volume9Pages:17318-17326
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS KeywordHIGH-PERFORMANCE SUPERCAPACITORS ; SOLID-STATE SUPERCAPACITORS ; DOPED GRAPHENE ; HIGH-ENERGY ; DENSITY SUPERCAPACITORS ; ELECTRODE MATERIALS ; SURFACE-CHEMISTRY ; ACID ; CAPACITANCE ; ULTRACAPACITORS
AbstractCarbon-based supercapacitors have high power density and long cycle life; however, they are known to suffer from problems related to low energy density and high inner resistance. Here, we report a novel hierarchically porous functional carbon that is made up of interconnected exfoliated carbon nanosheets with thickness of a few nanometers. Notably, these porous carbon nanosheets are doped with abundant nitrogen (N) dopants in the basal plane and phosphorus (P) functional groups at the edge of the graphene lattice. The specific surface chemistry and pore structure of the synthesized sample, combined with its large specific surface area, make it a high-performance active material for supercapacitor electrode. The obtained supercapacitor made with the optimized sample showed a high specific capacitance (265 F g(-1) at 0.5 A g(-1)) as well as long-term stability (94% capacitance retention after 5000 cycles). Particularly, the enhanced electrochemical characteristics were maintained even at high electrode mass loading (time constant (tau(0)) is 1.10 s for an electrode mass loading of 12.38 mg cm(-2) compared to 1.61 s for a mass loading of 4.17 mg cm(-2) for commercial activated carbon), which is important for a high packing factor of the capacitor.
Language英语
WOS IDWOS:000402498600063
Citation statistics
Cited Times:30[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/152219
Collection中国科学院大连化学物理研究所
Affiliation1.Dongguan Univ Technol, Sch Environm & Architecture, Songshan Lake High Tech Dev, Daxue Rd 1, Dongguan 523808, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, 457 Zhongshan Rd, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Jin, Jutao,Qiao, Xiaochang,Zhou, Feng,et al. Interconnected Phosphorus and Nitrogen Codoped Porous Exfoliated Carbon Nanosheets for High-Rate Supercapacitors[J]. ACS APPLIED MATERIALS & INTERFACES,2017,9:17318-17326.
APA Jin, Jutao,Qiao, Xiaochang,Zhou, Feng,Wu, Zhong-Shuai,Cui, Lifeng,&Fan, Hongbo.(2017).Interconnected Phosphorus and Nitrogen Codoped Porous Exfoliated Carbon Nanosheets for High-Rate Supercapacitors.ACS APPLIED MATERIALS & INTERFACES,9,17318-17326.
MLA Jin, Jutao,et al."Interconnected Phosphorus and Nitrogen Codoped Porous Exfoliated Carbon Nanosheets for High-Rate Supercapacitors".ACS APPLIED MATERIALS & INTERFACES 9(2017):17318-17326.
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