Abstract
La(OH)3 was deposited from nitrate bath via pulsed cathodic electrodeposition at a typical on-time and off-time (ton = 10 ms and toff = 40 ms). The obtained deposit was then heat treated at 600°C for 3 h in dry air atmosphere. The structural and morphological characterizations via XRD, CFTN, FT-IR and SEM techniques revealed that one-dimensional (1D) La(OH)3 nanorods have been prepared at the applied pulse conditions. It was also observed that heat-treatment of the prepared La(OH)3 nanorods promotes the formation of La2O3 nanorods without any change in their morphology. Mechanism of the formation and the growth of La(OH)3 nanorods was proposed on base of the hydrogen bubbles dynamic template. The results showed that horizontally aligned nanorods of La(OH)3 and La2O3 can be easily prepared by the pulse deposition followed by heat-treatment.
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