Synthesis of CdSnO(3).3H(2)O nanocubes via ion exchange and their thermal decompositions to cadmium stannate.
Uniform crystalline CdSnO3.3H2O nanocubes with a 28-35 nm edge length have been obtained via the ion-exchange reaction of Na2Sn(OH)6 in a CdSO4 aqueous solution, assisted by ultrasonic treatment. Precursor Na2Sn(OH)6 crystals were prepared via hydrothermal treatment in an ethanol/water solution. The formation of CdSnO3.3H2O nanocubes resulted from the strain during the ion-exchange process. The influences of reaction conditions, such as ion-exchange (ultrasonic treatment) duration, solvent constitutes, surfactant, and pH on the formation of CdSnO3.3H2O crystals were described. Crystalline CdSnO3 and Cd2SnO4 have been obtained by thermal treatment at 300 and 500 degrees C, respectively, for 5 h under an inert-gas protecting condition using CdSnO3.3H2O nanocubes as the precursor. The cube shape of CdSnO3.3H2O was sustained after thermal decomposition to CdSnO3.
Tang
Yiwen
Y
Institute of Nano-science and Technology, Central China Normal University, Wuhan 430079, China. ywtang@phy.ccnu.edu.cn
Jiang
Yun
Y
Jia
Zhiyong
Z
Li
Bihui
B
Luo
Lijuan
L
Xu
Liang
L