Abstract: Herein we have fabricated AuTiO2 from a one-dimensional (1D) nanocomposite by the
simple oxidation method of the Ti sheet for supercapacitor applications. We intended on fabricating a
microlayer extended into the sheet body to form a selfstanding electrode. Raman spectra and XRD
patterns confirmed the formation of the rutile phase of the TiO2 bulk, and FESEM confirmed the
growth of the 1D nanostructure made of Au/TiO2, where the Au nanoparticles reside on the tip of
the TiO2 nanorods. The growth of 1D TiO2 by this method is supported by a growth mechanism
during the oxidation process. Three electrodes were fabricated based on pure and doped TiO2. These
electrodes were used as a selfstanding supercapacitor electrode. The Au-doped TiO2 exhibited a great
improvement in the electrochemical performance at low Au concentrations, whereas the excessive Au
concentration on the TiO2 surface exhibited a negative effect on the capacitance value. The highest
areal capacitance of 72 mFcm􀀀2 at a current density of 5 Acm􀀀2 was recorded for TiO2 doped with
a low Au concentration. The mechanism of the electrochemical reaction was proposed based on
Nyquist and Bode plots. The obtained results point out that the effect of Au on the TiO2 surface
makes Au/TiO2 ceramic electrodes a promising material as selfstanding energy storage electrodes.