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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/5788

Title: Tuning the physico-electrochemical properties of novel cobalt (II) octa[(3,5-biscarboxylate)-phenoxy] phthalocyanine complex using phenylamine-functionalised SWCNTs
Authors: Agboola, BO
Ozoemena, KI
Nyokong, T
Fukuda, T
Kobayashi, N
Keywords: SWCNTs
Phthalocyanine
Impedance spectroscopy
Voltammetry
Issue Date: Mar-2010
Publisher: Elsevier
Citation: Agboola, BO, Ozoemena, KI, Nyokong, T, Fukuda, T and Kobayashi, N. 2010. Tuning the physico-electrochemical properties of novel cobalt (II) octa[(3,5-biscarboxylate)-phenoxy] phthalocyanine complex using phenylamine-functionalised SWCNTs. Carbon, vol. 48(3), pp 763-773
Series/Report no.: Workflow;6129
Abstract: The integration of phenylamine-functionalised SWCNTs (SWCNT-phenylamine) with a novel cobalt (II) octa[(3,5-biscarboxylate)-phenoxy] phthalocyanine (CoOBPPc) complex has been described. The physical and electrochemical properties of the CoOBPPc-SWCNT-phenylamine hybrid were evaluated using spectroscopy (IR and UV–vis), field emission scanning electron microscopy and electrochemistry (cyclic voltammetry and electrochemical impedance spectroscopy). Integration of SWCNT-phenylamine resulted in the physical transformation of the CoOBCPPc from the usually bluish colour of cobalt phthalocyanine complexes to a beautiful bright green colour. In addition, the heterogeneous electron transfer kinetics and electrocatalytic properties of the CoOBCPPc were greatly enhanced following the attachment of the SWCNT-phenylamine. The potential electrocatalytic application of the hybrid was tested using b-nicotinamide adenine dinucleotide (NADH) as a model biological analyte. Interestingly, the onset oxidation potential of this analyte was significantly reduced (300 mV) by this hybrid compared to the bare electrode.
Description: Copyright: 2009 Elsevier. This is an ABSTRACT ONLY
URI: http://www.sciencedirect.com/science/article/pii/S0008622309006964
http://hdl.handle.net/10204/5788
ISSN: 0008-6223
Appears in Collections:National Centre for nano-structured materials
Nanotechnology
Analytical science
General science, engineering & technology

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