UM
The effects of surface modification on the supercapacitive behaviors of novel mesoporous carbon derived from rod-like hydroxyapatite template
Wu X.3; Hong X.3; Luo Z.4; Hui K.S.1; Chen H.3; Wu J.3; Hui K.N.2; Li L.3; Nan J.3; Zhang Q.3
2013-02-01
Source PublicationElectrochimica Acta
ISSN00134686
Volume89Pages:400-406
AbstractNovel mesoporous carbon has been synthesized using rod-like nano-hydroxyapatite (HA) particles as templates, sucrose as carbon precursor by polymerizing, carbonizing and the removal of templates with HCl solution. In the process, HA not only acted as an endotemplate but also an exotemplate producing micropores and mesopores. Subsequently, mesoporous carbon was modified by HNO solution with different concentration. The morphology, pore structure, and surface functional groups of the as-obtained samples are analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller method (BET), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS). The electrochemical performance for electrochemical capacitors is evaluated in a 1 M HSO aqueous solution. The results manifest that the structrue of resultant carbon with a high surface area (719.7 m g) and large pore volume (1.51 cm g) is the replica of HA. After modification, the surface area and pore volume mesoporous carbons slightly decrease, while their electrochemical performance have been significantly improved with the increase of the capacitance from 125.7 to 170.1 F g and a non-decayed cycle life over 5000 cycles for HA-C-0.15N. © 2012 Elsevier Ltd. All Rights Reserved.
KeywordElectrical double-layer capacitors HNO3 solution Hydroxyapatite Mesoporous carbon Template
DOI10.1016/j.electacta.2012.11.067
URLView the original
Language英語
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Cited Times [WOS]:73   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.City University of Hong Kong
2.Pusan National University
3.South China Normal University
4.Fayetteville State University
Recommended Citation
GB/T 7714
Wu X.,Hong X.,Luo Z.,et al. The effects of surface modification on the supercapacitive behaviors of novel mesoporous carbon derived from rod-like hydroxyapatite template[J]. Electrochimica Acta,2013,89:400-406.
APA Wu X.,Hong X.,Luo Z.,Hui K.S.,Chen H.,Wu J.,Hui K.N.,Li L.,Nan J.,&Zhang Q..(2013).The effects of surface modification on the supercapacitive behaviors of novel mesoporous carbon derived from rod-like hydroxyapatite template.Electrochimica Acta,89,400-406.
MLA Wu X.,et al."The effects of surface modification on the supercapacitive behaviors of novel mesoporous carbon derived from rod-like hydroxyapatite template".Electrochimica Acta 89(2013):400-406.
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