Effect of surface phosphorus functionalities of activated carbons containing oxygen and nitrogen on electrochemical capacitance

Hulicova-Jurcakova, Denisa, Seredych, Mykola, Lu, Gao Qing, Kodiweera, N.K.A.C., Stallworth, PE, Greenbaum, Steven and Bandosz, Teresa J. (2009) Effect of surface phosphorus functionalities of activated carbons containing oxygen and nitrogen on electrochemical capacitance. Carbon, 47 6: 1576-1584. doi:10.1016/j.carbon.2009.02.006


Author Hulicova-Jurcakova, Denisa
Seredych, Mykola
Lu, Gao Qing
Kodiweera, N.K.A.C.
Stallworth, PE
Greenbaum, Steven
Bandosz, Teresa J.
Title Effect of surface phosphorus functionalities of activated carbons containing oxygen and nitrogen on electrochemical capacitance
Journal name Carbon   Check publisher's open access policy
ISSN 0008-6223
Publication date 2009-05-01
Year available 2009
Sub-type Article (original research)
DOI 10.1016/j.carbon.2009.02.006
Open Access Status DOI
Volume 47
Issue 6
Start page 1576
End page 1584
Total pages 9
Editor Peter A. Thrower
Place of publication New York
Publisher Pergamon Press/Elsevier
Language eng
Subject 1007 Nanotechnology
C1
100708 Nanomaterials
850602 Energy Storage (excl. Hydrogen)
Abstract Micro/mesoporous activated carbons containing oxygen and phosphorus heteroatoms were modified by incorporation of nitrogen using melamine and urea precursors. The surface chemistry was analyzed by the means of elemental analysis, XPS, and 31P MAS NMR. The results indicate that upon the incorporation of nitrogen at high temperatures not only new species involving carbon/nitrogen/oxygen are formed but also the phosphorous environment is significantly altered. Both urea and melamine precursors have similar effects on formation of P–N and P–C bonds. These compounds, although present in small but measurable quantities seem to affect the performance of carbons in electrochemical capacitors. With an increase in the heterogeneity of phosphorus containing species and with a decrease in the content pyrophosphates the capacitance increases and the retention ratio of the capacitor is improved.
Keyword double-layer capacitors
PORE-SIZE
SUPERCAPACITORS
ION
PERFORMANCE
PYROLYSIS
CHEMISTRY
ELECTRODE
ACID
AREA
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID G12 RR003037-24
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
Australian Institute for Bioengineering and Nanotechnology Publications
 
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Created: Thu, 03 Sep 2009, 18:14:42 EST by Mr Andrew Martlew on behalf of Aust Institute for Bioengineering & Nanotechnology