Nanostructure CharacterizationOpen Access

PRAPARATION AND CHARACTERISATION OF TiO₂ NANOTUBULAR ARRAYS FOR ELECTRO-OXIDATION OF ORGANIC COMPOUNDS: EFFECT OF IMMOBILIZATION OF THE NOBLE METAL PARTICLES

Electrochemistry Research Laboratory, Department of Physical Chemistry, Chemistry Faculty, University of Tabriz, Tabriz, Iran

Search for more papers by this author

and

MOHAMAD MOHSEN MOMENI

Electrochemistry Research Laboratory, Department of Physical Chemistry, Chemistry Faculty, University of Tabriz, Tabriz, Iran

Search for more papers by this author

https://doi.org/10.1142/S2010194512001821Cited by:2 (Source: Crossref)

Abstract

The morphology, composition and the electrochemical behavior of the anodic nanoporous layer, prepared by the galvanostatic anodisation of titanium, followed by galvanostatic deposition of noble metal particles have been investigated. The morphology and surface characteristics of result electrodes were investigated using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX), respectively. The results indicated that noble metal particles were homogeneously deposited on the surface of TiO₂ nanotubes. The nanotubular TiO₂ layers consist of individual tubes of about 40-80 nm diameters. The electrocatalytic behavior of result electrodes for electro-oxidation of organic compounds (glucose, dopamine, ascorbic acid and hydrazine) was studied by cyclic voltammetry. The results showed that the result electrodes possess catalytic activity toward the oxidation organic compounds.

Keywords:

References

Z. Bing , S. Hermans and G. A. Somorjai (eds.) , Nanotechnology in Catalysis , Springer series: nanostructure science and technology ( Springer , New York , 2004 ) . Google Scholar
S. Liu and A. Chen, Langmuir 21, 8409 (2005), DOI: 10.1021/la050875x. Crossref, Google Scholar
Y. Du and J. Rabani, J. Phys. Chem. B 107, 11970 (2003), DOI: 10.1021/jp035491z. Crossref, Google Scholar
G. K. Moret al., Nano Lett. 6, 215 (2006), DOI: 10.1021/nl052099j. Crossref, ADS, Google Scholar
J. H. Park, S. Kim and A. J. Bard, Nano Lett. 6, 24 (2006), DOI: 10.1021/nl051807y. Crossref, Google Scholar
V. Zwilling, M. Aucouturier and E. Darque-Ceretti, Electrochim. Acta 45, 921 (1999), DOI: 10.1016/S0013-4686(99)00283-2. Crossref, Google Scholar
J. Kunzeet al., Electrochim. Acta 53, 6995 (2008), DOI: 10.1016/j.electacta.2008.01.027. Crossref, Google Scholar
S. C. Roy, M. Paulose and C. A. Grimes, Biomaterials 28, 4667 (2007), DOI: 10.1016/j.biomaterials.2007.07.045. Crossref, Google Scholar
J. R. Jenningset al., J. Am. Chem. Soc. 130, 13364 (2008), DOI: 10.1021/ja804852z. Crossref, Google Scholar
J. Parket al., Nano Lett. 7, 1686 (2007), DOI: 10.1021/nl070678d. Crossref, Google Scholar
A. Ghicovet al., Electrochem. Commun. 7, 505 (2005), DOI: 10.1016/j.elecom.2005.03.007. Crossref, Google Scholar
G. K. Moret al., Sol. Energy Mater. Sol. Cells 90, 2011 (2006). Crossref, Google Scholar
H. Tsuchiyaet al., Electrochem. Commun. 7, 576 (2005), DOI: 10.1016/j.elecom.2005.04.008. Crossref, Google Scholar
J. M. Macak and P. Schmuki, Electrochim. Acta 52, 1258 (2006), DOI: 10.1016/j.electacta.2006.07.021. Crossref, Google Scholar
M. G. Hosseini, S. A. S. Sajjadi and M. M. Momeni, J. Sur. Eng. 23, 419 (2007), DOI: 10.1179/174329407X260582. Crossref, Google Scholar
M. G. Hosseini, S. A. S. Sajjadi and M. M. Momeni, IUST Int. J. Eng. Sci. 7, 39 (2008). Google Scholar
M. G. Hosseini and M. M. Momeni, J. Solid State Electrochem. 14, 1109 (2010), DOI: 10.1007/s10008-009-0920-4. Crossref, Google Scholar