SERVICE LIFE OF TI SNO2-SB2O5 ANODES

Authors
CORREALOZANO B COMNINELLIS C DEBATTISTI A
Citation
B. Correalozano et al., SERVICE LIFE OF TI SNO2-SB2O5 ANODES, Journal of Applied Electrochemistry, 27(8), 1997, pp. 970-974
Citations number
15
Categorie Soggetti
Electrochemistry
Journal title
Journal of Applied Electrochemistry → ACNP
ISSN journal
0021891X
Volume
27
Issue
8
Year of publication
1997
Pages
970 - 974
Database
ISI
SICI code
0021-891X(1997)27:8<970:SLOTSA>2.0.ZU;2-T
Abstract
The service life of SnO2-Sb2O5 coated anodes prepared by the spray pyr olysis technique using Ti or Ti/IrO2 substrate, was studied under galv anostatic conditions (100 mA cm(-2) in 1 M H2SO4 at 25 degrees C, The results showed that the presence of an IrO2 interlayer between the Ti substrate and the SnO2-Sb2O5 coating (Ti/IrO2/SnO2-Sb2O5 anode) strong ly increases the service life of the anode. This beneficial action of the IrO2 interlayer was attributed to its high anodic stability and it s isomorphous structure with TiO2 and SnO2. Cyclic voltammetry anti st eady-state polarization curves showed that the electrochemical behavio ur of the Ti/IrO2/SnO2-Sb2O5 electrode lies between the behaviour of t he Ti/IrO2 and the Ti/SnO2-Sb2O5 electrodes due to incorporation of Ir O2 in the SnO2-Sb2O5 coating during its preparation.