P. Kathirgamanathan et S. Ravichandran, CONDUCTING POLYMER CATHODES FOR HIGH-FREQUENCY OPERABLE ELECTROLYTIC NIOBIUM CAPACITORS, Synthetic metals, 74(2), 1995, pp. 165-170
A capacitor based on niobium pentoxide (anodized niobium) has been suc
cessfully produced with conducting polyaniline and polypyrrole as the
cathodes, which performs well up to 800 kHz. This has been compared wi
th a commercial tantalum pentoxide capacitor with manganese dioxide as
cathode, which performs well only up to 100 kHz. Leakage current, equ
ivalent series resistance and impedance are reported for both devices.