Synthesis and Characterization of Nanostructured Co(OH)₂ and Co₃O₄ Thin Films by a Simple Solution Growth Process

Abstract:

Nanostructured Co(OH)₂ thin films were synthesized by a simple solution growth process. In experiment, F^– and NH₃ were used as Co²⁺ ordination agents, and hydroxyl ions were supplied by ammonia hydroxide solution for the hydrolysis reaction. The results showed that the solution pH and F/Co ratio had great influences on the morphologies of the thin films. The Co(OH)₂ thin films were constructed with lots of Co(OH)₂ nanoflakes. Nanostructured Co3O4 thin films were prepared by annealing the Co(OH)₂ thin films at 400°C for 2 h. The magnetic properties of Co₃O₄ thin films were also investigated.

• Periodical: Key Engineering Materials (Volume 537)
• Pages: 247-251
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.537.247
• Online since: January 2013
• Authors: Yu Xin Liu, Qun Yan Li, Zuo-Ren Nie, Qi Wei
• Keywords: Co(OH)₂, Co₃O₄ Thin Film, Magnetic Measurement, Nanostructure

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