A novel method to prepare metal oxide electrode: Spin-coating with thermal decomposition

In this work, we propose a new spin-coating method coupling with high thermal decomposition, to prepare the tin-antimony (Sn-Sb) oxide electrode. The character of the spin-coating electrode was compared with the dip-coating electrode through X-ray diffraction (XRD), scanning electron microscopy (SEM), accelerated life test, cyclic voltammetry, and electrolytic degradability. The results showed that the spin-coating electrode had a better defined crystal form, a smoother and more compact surface than that of the dip-coating electrode. Service time of the spin-coating electrode was determined to be longer than 15 h, and it was less than 2 min for the dip-coating electrode. Electrochemical characterization analysis showed that the electrolytic degradability of the spin-coating electrode is better than that of the dip-coating electrode.