Hollow Co2P nanoflowers organized by nanorods for ultralong cycle-life supercapacitors

Handle URI:
http://hdl.handle.net/10754/625424
Title:
Hollow Co2P nanoflowers organized by nanorods for ultralong cycle-life supercapacitors
Authors:
Cheng, Ming; Fan, Hongsheng; Xu, Yingying; Wang, Rongming; Zhang, Xixiang ( 0000-0002-3478-6414 )
Abstract:
Hollow Co2P nanoflowers (Co2P HNF) are successfully prepared via a one-step, template-free method. Microstructure analysis reveals that Co2P HNF is assembled by nanorods, possesses abundant mesopores and a amorphous carbon shell. Density functional theory calculation and electrochemical measurements demonstrate the high electrical conductivity of Co2P. Benefiting from the unique nanostructures, when employed as electrode material for supercapacitors, Co2P HNF exhibits a high specific capacitance, an outstanding rate capability, and an ultralong cycle stability. Furthermore,. the constructed Co2P HNF//AC ASC yields a high energy density of 30.5 Wh kg-1 at a power density of 850 W kg-1, along with an superior cycling performance (108.0% specific capacitance retained after 10000 cycles at 5 A g-1). These impressive results make Co2P HNF a promising candidate for supercapacitor applications.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Cheng M, Fan H, Xu Y, Wang R, Zhang xixiang (2017) Hollow Co2P nanoflowers organized by nanorods for ultralong cycle-life supercapacitors. Nanoscale. Available: http://dx.doi.org/10.1039/c7nr04464j.
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Nanoscale
Issue Date:
24-Aug-2017
DOI:
10.1039/c7nr04464j
Type:
Article
ISSN:
2040-3364; 2040-3372
Sponsors:
This work was supported by the National Natural Science Foundation of China (No.51371015, 51331002, 51501004), the Beijing Municipal Science and Technology Project (No. Z17111000220000), and King Abdullah University of Science and Technology (KAUST).
Additional Links:
http://pubs.rsc.org/en/Content/ArticleLanding/2017/NR/C7NR04464J#!divAbstract
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorCheng, Mingen
dc.contributor.authorFan, Hongshengen
dc.contributor.authorXu, Yingyingen
dc.contributor.authorWang, Rongmingen
dc.contributor.authorZhang, Xixiangen
dc.date.accessioned2017-08-30T11:40:25Z-
dc.date.available2017-08-30T11:40:25Z-
dc.date.issued2017-08-24en
dc.identifier.citationCheng M, Fan H, Xu Y, Wang R, Zhang xixiang (2017) Hollow Co2P nanoflowers organized by nanorods for ultralong cycle-life supercapacitors. Nanoscale. Available: http://dx.doi.org/10.1039/c7nr04464j.en
dc.identifier.issn2040-3364en
dc.identifier.issn2040-3372en
dc.identifier.doi10.1039/c7nr04464jen
dc.identifier.urihttp://hdl.handle.net/10754/625424-
dc.description.abstractHollow Co2P nanoflowers (Co2P HNF) are successfully prepared via a one-step, template-free method. Microstructure analysis reveals that Co2P HNF is assembled by nanorods, possesses abundant mesopores and a amorphous carbon shell. Density functional theory calculation and electrochemical measurements demonstrate the high electrical conductivity of Co2P. Benefiting from the unique nanostructures, when employed as electrode material for supercapacitors, Co2P HNF exhibits a high specific capacitance, an outstanding rate capability, and an ultralong cycle stability. Furthermore,. the constructed Co2P HNF//AC ASC yields a high energy density of 30.5 Wh kg-1 at a power density of 850 W kg-1, along with an superior cycling performance (108.0% specific capacitance retained after 10000 cycles at 5 A g-1). These impressive results make Co2P HNF a promising candidate for supercapacitor applications.en
dc.description.sponsorshipThis work was supported by the National Natural Science Foundation of China (No.51371015, 51331002, 51501004), the Beijing Municipal Science and Technology Project (No. Z17111000220000), and King Abdullah University of Science and Technology (KAUST).en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.relation.urlhttp://pubs.rsc.org/en/Content/ArticleLanding/2017/NR/C7NR04464J#!divAbstracten
dc.rightsArchived with thanks to Nanoscaleen
dc.titleHollow Co2P nanoflowers organized by nanorods for ultralong cycle-life supercapacitorsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalNanoscaleen
dc.eprint.versionPost-printen
dc.contributor.institutionDepartment of Physics, Beihang University, Beijing 100191, P. R. Chinaen
dc.contributor.institutionBeijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, P. R. Chinaen
kaust.authorCheng, Mingen
kaust.authorFan, Hongshengen
kaust.authorZhang, Xixiangen
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