Sn02 meso-scale tubes: One-step, room temperature electrodeposition synthesis and kinetic investigation for lithium storage

Authors

Shulei Chou, University of WollongongFollow
Jiazhao Wang, University of WollongongFollow
Hua-Kun Liu, University of WollongongFollow
S. X. Dou, University of WollongongFollow

RIS ID

29265

Publication Details

Chou, S., Wang, J., Liu, H. K. and Dou, S. (2009). Sn0₂ meso-scale tubes: One-step, room temperature electrodeposition synthesis and kinetic investigation for lithium storage. Electrochemistry Communications, 11 (2), 242-246.

Abstract

SnO₂ meso-scale tubes were synthesized by anodic electrochemical deposition under ambient conditions. Controlled self-bubbling O₂ acted as both the template and the oxidizing agent for obtaining SnO₂ tube structures at the interface of the gas (O₂) and the liquid (electrolyte). Electrochemical testing showed that the meso-scale tubes have higher discharge capacity and better rate capability than the “microbowls” produced by varying the deposition conditions. From the Arrhenius plot, the apparent activation energies were calculated to be 58.4 and 90.1 kJ mol⁻¹ for the meso-scale tubes and the microbowls, respectively, indicating that the meso-scale structure allows shorter diffusion routes for the lithium ions or for easier interaction with lithium.