TY - JOUR
T1 - Influence of structural transformations over the electrochemical behavior of Ti anodic films grown in 0.1 M NaOH
AU - Acevedo-Peña, Próspero
AU - Vázquez, Gerardo
AU - Laverde, Dionisio
AU - Pedraza-Rosas, Julio E.
AU - González, Ignacio
N1 - Funding Information:
This work has been carried out in the frame of the projects COLCIENCIAS (Project 1102-332-18533) and CONACYT (Project SEP-2004-C01-47162). P. Acevedo-Peña thanks the Universidad Industrial de Santander for the master scholarship and the financial support through the “Program for Mobility of Researchers 2007-VIE”. G. Vázquez thanks the financial support of CONACYT for the postdoctoral grant.
PY - 2010/5
Y1 - 2010/5
N2 - In this work, the structural transformation during the anodic growth of Ti oxide films and its influence on the resistive properties of the film are studied. The voltammetric characterization of Ti/0.1 M NaOH indicates that the oxide film composition depends on potential. Depending on the anodic switching potential, the oxide film can produce up to three cathodic peaks, and the peaks can be related to different Ti oxides. During the early stages of potentiostatic formation, the oxide film seems to have the same initial structure regardless of the film formation potential; however, after increasing growth time, the oxide structure depends on the formation potential. The evaluation of the resistive properties of Ti oxide films determined by electrochemical impedance spectroscopy shows that despite the chemical transformations within the film, there is a linear dependence between the capacitance of the Ti oxide film with formation potential.
AB - In this work, the structural transformation during the anodic growth of Ti oxide films and its influence on the resistive properties of the film are studied. The voltammetric characterization of Ti/0.1 M NaOH indicates that the oxide film composition depends on potential. Depending on the anodic switching potential, the oxide film can produce up to three cathodic peaks, and the peaks can be related to different Ti oxides. During the early stages of potentiostatic formation, the oxide film seems to have the same initial structure regardless of the film formation potential; however, after increasing growth time, the oxide structure depends on the formation potential. The evaluation of the resistive properties of Ti oxide films determined by electrochemical impedance spectroscopy shows that despite the chemical transformations within the film, there is a linear dependence between the capacitance of the Ti oxide film with formation potential.
KW - EIS
KW - Potentiostatic growth
KW - Structure transformation
KW - Titanium oxide film
KW - Voltammetry
UR - http://www.scopus.com/inward/record.url?scp=77952291441&partnerID=8YFLogxK
U2 - 10.1007/s10008-009-0838-x
DO - 10.1007/s10008-009-0838-x
M3 - Artículo
SN - 1432-8488
VL - 14
SP - 757
EP - 767
JO - Journal of Solid State Electrochemistry
JF - Journal of Solid State Electrochemistry
IS - 5
ER -