Tuning the physico-electrochemical properties of novel cobalt (II) octa[(3,5-biscarboxylate)-phenoxy] phthalocyanine complex using phenylamine-functionalised SWCNTs

被引：27
作者：
Agboola, Bolade O. [1 ]
Ozoemena, Kenneth I. [1 ]
Nyokong, Tebello [2 ]
Fukuda, Takamitsu [3 ]
Kobayashi, Nagao [3 ]
机构：
[1] CSIR, Energy & Proc Unit, ZA-0001 Pretoria, South Africa
[2] Rhodes Univ, Dept Chem, ZA-6140 Grahamstown, South Africa
[3] Tohoku Univ, Grad Sch Sci, Dept Chem, Sendai, Miyagi 9808578, Japan
来源：
CARBON | 2010年 / 48卷 / 03期
关键词：
WALLED CARBON NANOTUBES; ELECTROCATALYTIC ACTIVITY; ELECTRODES; OXIDATION; NADH; VOLTAMMETRY; ARRAYS;
D O I：
10.1016/j.carbon.2009.10.023
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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 beta-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. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：763 / 773
页数：11
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