Electro-Catalytic Reduction Performance of La-Doped Nano-TiO2 Electrode

Article Preview

Abstract:

Homogeneous and transparent lanthanum La-doped TiO2 nanocrystalline thin films were deposited on pure titanium substrates by sol gel dip coating method. The surface structures, morphologies and electrocatalytic activities of the prepared nano-TiO2 film electrodes were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Cyclic voltammetry (CV). The results demonstrated that the optimum molar proportion of La was 0.5%. This optimum La-nanoTiO2 electrode (Ti/0.5%La nano-TiO2) showed a higher electrocatalytic activity than the undoped nano-TiO2 electrode (Ti/nano-TiO2)

You might also be interested in these eBooks

Info:

Periodical:

Pages:

41-44

Citation:

Online since:

July 2013

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] J. D. Zhang, M. Oyama, Tunable electrochemical properties of liquid phase deposited TiO2 films, J. Appl. Electrochem 38 (2008) 1421–1426.

DOI: 10.1007/s10800-008-9582-7

Google Scholar

[2] Y. Chen, D. D. Dionysiou, Correlation of structural properties and film thickness to photocatalytic activity of thick TiO2 films coated on stainless steel, Appl. Catal. B Environ. 69 (2006) 24-33.

DOI: 10.1016/j.apcatb.2006.05.002

Google Scholar

[3] D. F. Ollis, E. Pellizzetti and N. Serpone, Photocatalyzed destruction of water contaminants, Environ. Sci. Technol.25 (1991) 1522–1529.

DOI: 10.1021/es00021a001

Google Scholar

[4] G. Boschloo, D. Fitzmaurice, Spectroelectrochemical investigation of surface states in nanostructured TiO2 electrodes, J. Phys. Chem B. 103 (1999) 2228-2231.

DOI: 10.1021/jp984414e

Google Scholar

[5] G. Boschloo, D. Fitzmaurice, Electron accumulation in nanostructured TiO2 (anatase) electrodes, J. Phys. Chem. B. 103 (1999) 7860-7868.

DOI: 10.1021/jp983040m

Google Scholar

[6] H. Wang, J. He, G. Boschloo, H. Lindstrom, A. Hagfeldt, S. Lindquist, Electronchemical investigation of traps in a nanostructured TiO2 film, J. Phys. Chem. B. 105 (2001) 2529-2533.

DOI: 10.1021/jp0036083

Google Scholar

[7] Y. Wang, H.Y. Tong, W. Xu. Electrocatalytic activity of Ti/TiO2 electrodes in H2SO4 solution, The Chinese Journal of Process Engineering.3 (2003) 356-340.

Google Scholar

[8] X. B. Chen and S. S. Mao, Titanium dioxide nanomaterials: synthesis, properties, modifications, and applications,Chem. Rev. 2007, 107, 2891–2959.

DOI: 10.1021/cr0500535

Google Scholar

[9] Y. Wang, T. Chen and Q. Mu. Electrochemical performance of W-doped anatase TiO2 nanoparticles as an electrode material for lithium-ion batteries, J. Mater. Chem. 21 (2011) 6006–6013.

DOI: 10.1039/c0jm04275g

Google Scholar

[10] M. Xu, F. W. Wang, Y. J. Wei. Ti/nanoTiO2-ZrO2 Electrode with high catalytic activity for electrocatalytic reduction of maleic acid to succinic acid. Acta Chimica Sinica. 70 (2012) 1407-1411.

DOI: 10.6023/a1105263

Google Scholar

[11] Iolanda Cimieri, Hilde Poelman, Nursen Avci, et al, Sol–gel preparation of pure and doped TiO2 films for the photocatalytic oxidation of ethanol in air, Sol-Gel. Sci. Techno. 63 (2012) 526-536.

DOI: 10.1007/s10971-012-2815-6

Google Scholar

[12] T. Rodriguez, S. Vargas, C. Montiel, et al. Modification of the phase transition temperature in Titania doped with various cations, Journal of Material Research, 12 (1997) 439-442.

Google Scholar

[13] K. Asako, N. Kota, H. Go, et al. Photoreactions on LaTiO2 N under visible light irradiation, Journal of Physical Chemistry A. 106 (2002) 6750-6753.

Google Scholar

[14] Y. Zhang, H. Zhang, Y. Xu, et al. Significant effect of lanthanide doping on the texture and properties of nanocrystalline mesoporous TiO2, Journal of Solid State Chemistry. 177 (2004) 3490-3498.

DOI: 10.1016/j.jssc.2004.05.026

Google Scholar