Synthesis of tin oxide nanoparticle film by cathodic electrodeposition.
Three-dimensional SnO2 nanoparticle films were deposited onto a copper substrate by cathodic electrodeposition in a nitric acid solution. A new formation mechanism for SnO2 films is proposed based on the oxidation of Sn2+ ion to Sn4+ ion by NO+ ion and the hydrolysis of Sn4+. The particle size of SnO2 was controlled by deposition potential. The SnO2 showed excellent charge capacity (729 mAh/g) at a 0.2 C rate and high rate capability (460 mAh/g) at a 5 C rate.
Department of Chemical and Biochemical Engineering, Pusan National University, Pusan, 609-390, Korea.
Seok
S
Kim
Hochun
H
Lee
Chang Min
CM
Park
Yongju
Y
Jung