Facile and controlled growth of SWCNT on well-dispersed Ni-SBA-15 for an efficient electro-catalytic oxidation of ascorbic acid, dopamine and uric acid
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
View Archive Info| Field | Value | |
| Title |
Facile and controlled growth of SWCNT on well-dispersed Ni-SBA-15 for an
efficient electro-catalytic oxidation of ascorbic acid, dopamine and uric acid
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| Creator |
Balamurugan, J.
Senthilkumar, S.M. Thangamuthu, R. Pandurangan, A. |
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| Subject |
Nanotechnology
Electrochemical Materials Science |
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| Description |
High-surface area and well-ordered mesoporous Ni incorporated SBA-15 (Ni-SBA-15) catalysts were
synthesized following a controlled post synthesis grafting process. The activities of these catalysts were
evaluated in the synthesis of uniform diameter single walled carbon nanotubes (SWCNTs) adopting high
temperature methane pyrolysis under atmospheric pressure. The characteristics of SWCNTs were confirmed
by X-ray diffraction, thermogravimetric analysis, transmission electron microscopy (TEM) and
Raman spectroscopy. The TEM micrographs reveal that the SWCNTs were mostly entangled bundles
with diameters of about 2–3 nm. Raman spectra prove that the SWCNTs synthesized at 900 ◦C posses low
amount of amorphous/defected carbon with very low ID/IG ratio. The radial breathing mode Raman peaks
confirm the formation of SWCNTs of <3 nm diameter. SWCNTs modified glassy carbon electrode (GCE)
has been developed and tested in 0.1 M phosphate buffer solution of pH 4.5. The SWCNTs/GCE exhibits
superior electro-catalytic activity toward ascorbic acid (AA), dopamine (DA) and uric acid (UA). Moreover,
AA, DA, UA were oxidized separately at distinguishable potentials along with well defined peaks thereby
making possible for simultaneous determination of each compound.
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| Publisher |
Elsevier B.V.
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| Date |
2013
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cecri.csircentral.net/3044/1/025-2013.pdf
Balamurugan, J. and Senthilkumar, S.M. and Thangamuthu, R. and Pandurangan, A. (2013) Facile and controlled growth of SWCNT on well-dispersed Ni-SBA-15 for an efficient electro-catalytic oxidation of ascorbic acid, dopamine and uric acid. Journal of Molecular Catalysis, 372. pp. 13-22. ISSN 1381-1169 |
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| Relation |
http://www.elsevier.com/locate/molcata
http://cecri.csircentral.net/3044/ |
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