Abstract
A cobalt(II) tetra-neopentyloxy phthalocyanine-multi-walled carbon nanotubes (CoTNPPc–MWNTs) composite was synthesized and characterized by UV–Vis spectra and transmission electron microscopy. The CoTNPPc–MWNTs glassy carbon electrode (CoTNPPc–MWNTs/GCE) was prepared by drop coating. The electrocatalytic performance of the chemically modified electrode was investigated for oxidation of ascorbic acid (AA). It was found that in phosphate buffer solution at pH = 6.60, the chemically modified electrode exhibited excellent electrocatalytic activity toward the oxidation of AA. The oxidation peak current increased linearly with the concentration of AA in the range of 10 μM–1.6 mM within the detection limit of 5 μM and low response time of 4 s.
Similar content being viewed by others
References
Barros AI, Silva AP, Gonçalves B, Nunes FM (2010) Anal Bioanal Chem 396:1863
Ijeri VS, Jaiswal PV, Srivastava AK (2001) Anal Chim Acta 439:291
Mannino S, Cosio MS (1997) Analyst 122:1153
Arya SP, Mahajan M, Jain P (2001) Anal Chim Acta 427:245
Lenghor N, Jakmunee J, Vilen M, Sara R, Christian GD, Grudpan K (2002) Talanta 58:1139
Greenway GM, Ongomo P (1990) Analyst 115:1297
Agboola BO, Vilakazi SL, Ozoemena KI (2009) J Solid State Electrochem 13:1367
Chen SM, Chen JY, Vasantha VS (2006) Electrochim Acta 52:455
Han XJ, Tang JL, Wang JG, Wang EK (2001) Electrochim Acta 46:3367
Heliclal IS (1991) Nature 354:56
Baughman RH, Heer AA, Zakhidov WA (2002) Science 297:787
Star A, Han TR, Christophe J, Gabriel P, Bradley K, Gruner G (2003) Nano Lett 3:403
Imisides MD, John R, Riley PJ, Wallace GG (1991) Electroanalysis 3:879
Moraes FC, Cabral MF, Machado SAS, Mascaro LH (2008) Electroanalysis 20:851
Tasis D, Tagmatarchis N, Bianco A, Prato M (2006) Chem Rev 106:1105
Burghard M (2005) Surf Sci Rep 58:1
Matemadombo F, Griveau S, Bedioui F, Nyokonga T (2008) Electroanalysis 20:1863
Raoof JB, Ojani R, Beitollahi H, Hossienzadeh R (2006) Electroanalysis 18:1193
Yang T, Zhuang RF (1992) J Inorg Chem 8:358
Maree S, Nyokong T (2000) J Electroanal Chem 492:120
Acknowledgement
We gratefully acknowledge the support of this study by project of the National Natural Science Foundation (11179033), Beijing Natural Science Foundation (2102012) and Beijing Education Committee.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Zuo, X., Li, N. & Zhang, H. Direct electrochemical determination of ascorbic acid by a cobalt(II) tetra-neopentyloxy phthalocyanine-multi-walled carbon nanotubes glassy carbon electrode. J Mater Sci 47, 2731–2735 (2012). https://doi.org/10.1007/s10853-011-6099-y
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10853-011-6099-y