TY - JOUR
T1 - Electrocrystallization of cadmium on anodically formed titanium oxide
AU - Carrera-Crespo, J. Edgar
AU - Acevedo-Peña, Próspero
AU - Miranda-Hernández, Margarita
AU - González, Ignacio
N1 - Funding Information:
This work has been given the financial support by CONACyT (Project CB-2008/105655). J. Edgar Carrera-Crespo and Próspero Acevedo-Peña are grateful to CONACyT for their grants for postgraduate studies. The authors thank to Ing. Rogelio Morán Elvira from CIE-UNAM and to the Laboratorio Central de Microscopía Electrónica from UAM-I, for the SEM images.
PY - 2013/2
Y1 - 2013/2
N2 - The electrocrystallization of Cd on previously anodized Ti substrates was studied by means of electrochemical techniques and SEM images in three different solutions of CdSO4 (2, 10, and 50 mM). Voltammetric characterization showed the typical behavior of metal electrodeposition on conducting substrates, and potentials for electrodeposition of Cd were identified. However, the response obtained at different potentials in current transients exhibited an abnormal behavior suggesting the influence of TiO2 on the process of electrocrystallization. The characterization of the obtained electrodeposits by SEM images allowed relating electrochemical with morphological changes, in particular, variations in the crystal size and shape as well as formation of presumably Cd branches on the substrate surface. This behavior only allowed the analysis of current transients of the electrodeposits obtained in 2 mM CdSO 4 solution using general equation for diffusion-controlled 3D growth and relating parameters of Cd crystal growth on anodized Ti electrode with the observed morphological changes.
AB - The electrocrystallization of Cd on previously anodized Ti substrates was studied by means of electrochemical techniques and SEM images in three different solutions of CdSO4 (2, 10, and 50 mM). Voltammetric characterization showed the typical behavior of metal electrodeposition on conducting substrates, and potentials for electrodeposition of Cd were identified. However, the response obtained at different potentials in current transients exhibited an abnormal behavior suggesting the influence of TiO2 on the process of electrocrystallization. The characterization of the obtained electrodeposits by SEM images allowed relating electrochemical with morphological changes, in particular, variations in the crystal size and shape as well as formation of presumably Cd branches on the substrate surface. This behavior only allowed the analysis of current transients of the electrodeposits obtained in 2 mM CdSO 4 solution using general equation for diffusion-controlled 3D growth and relating parameters of Cd crystal growth on anodized Ti electrode with the observed morphological changes.
KW - Branches
KW - Cadmium
KW - Electrocrystallization
KW - Titanium oxide
UR - http://www.scopus.com/inward/record.url?scp=84878497448&partnerID=8YFLogxK
U2 - 10.1007/s10008-012-1975-1
DO - 10.1007/s10008-012-1975-1
M3 - Artículo
SN - 1432-8488
VL - 17
SP - 445
EP - 457
JO - Journal of Solid State Electrochemistry
JF - Journal of Solid State Electrochemistry
IS - 2
ER -