TY - JOUR
T1 - Comparison of oxidized carbon nanotubes for Li-ion storage capacity
AU - Antic, Aleks
AU - Barone, Veronica
AU - Fahlman, Bradley D.
N1 - Publisher Copyright:
© 2014, Springer Science+Business Media Dordrecht.
PY - 2015/2
Y1 - 2015/2
N2 - Oxidized carbon nanotubes, oxCNTs, were formed when multi-walled carbon nanotubes were treated by chemical oxidation with acidic potassium permanganate. The synthesis and characterization of oxidized multi-walled carbon nanotubes of five diameter ranges for use as anode materials in lithium-ion battery applications is detailed herein. Thermogravimetric analysis and typical spectroscopic methods confirmed extensive oxidation, while X-ray photoelectron spectroscopy comparisons provided quantification of specific components. Images from high-resolution transmission electron microscopy indicated a change in structure associated with the oxidation as X-ray diffraction peaks indicated broadening interplanar spacing. This study confirmed that the oxidative process successfully led to oxCNTs, with a reversible capacity demonstratively higher than their parent multi-walled carbon nanotubes. Higher capacities were demonstrated in smaller-diameter oxCNTs, and associated with structural and compositional differences between the samples.
AB - Oxidized carbon nanotubes, oxCNTs, were formed when multi-walled carbon nanotubes were treated by chemical oxidation with acidic potassium permanganate. The synthesis and characterization of oxidized multi-walled carbon nanotubes of five diameter ranges for use as anode materials in lithium-ion battery applications is detailed herein. Thermogravimetric analysis and typical spectroscopic methods confirmed extensive oxidation, while X-ray photoelectron spectroscopy comparisons provided quantification of specific components. Images from high-resolution transmission electron microscopy indicated a change in structure associated with the oxidation as X-ray diffraction peaks indicated broadening interplanar spacing. This study confirmed that the oxidative process successfully led to oxCNTs, with a reversible capacity demonstratively higher than their parent multi-walled carbon nanotubes. Higher capacities were demonstrated in smaller-diameter oxCNTs, and associated with structural and compositional differences between the samples.
KW - Anode
KW - Graphene nanoribbons
KW - Lithium-ion
KW - Oxidized carbon nanotubes
KW - Specific capacity
UR - http://www.scopus.com/inward/record.url?scp=84920710323&partnerID=8YFLogxK
U2 - 10.1007/s10800-014-0784-x
DO - 10.1007/s10800-014-0784-x
M3 - Article
AN - SCOPUS:84920710323
VL - 45
SP - 161
EP - 167
JO - Journal of Applied Electrochemistry
JF - Journal of Applied Electrochemistry
SN - 0021-891X
IS - 2
ER -