Abstract Cobalt oxide nanoparticles were synthesized using a facile and convenient sonochemical method, followed by a calcination process. For the synthesis, cobalt nitrate, and sodium borohydride were used as precursors. Polyvinyl alcohol, 3-mercaptopropionic acid, and styrene were used as a stabilizing agent. To identify the structure, optical properties and morphology, the synthesized nanoparticles were characterized using X-ray diffraction, Ultraviolet-Visible Spectroscopy, Fourier-transform infrared spectroscopy, transmission electron microscopy, and scanning electron microscopy. To explain the formation mechanism of cobalt oxide nanoparticles, some investigations were carried out before thermal annealing. In addition, the particle size was tuned by variation of the concentration of 3-mercaptopropionic acid.

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稳定剂对超声辅助法合成氧化钴纳米粒子结构和光学性能的影响

摘要 使用简便的声化学方法合成氧化钴纳米粒子，然后进行煅烧。对于合成，硝酸钴和硼氢化钠用作前体。聚乙烯醇、3-巯基丙酸和苯乙烯用作稳定剂。为了鉴定结构、光学性质和形态，合成的纳米粒子使用 X 射线衍射、紫外-可见光谱、傅里叶变换红外光谱、透射电子显微镜和扫描电子显微镜进行表征。为了解释氧化钴纳米粒子的形成机制，在热退火之前进行了一些研究。此外，通过改变 3-巯基丙酸的浓度来调整粒径。