Abstract: Owing to their unique physicochemical properties, nanoclusters have attracted widespread attention, and show great promising in varies applications, such as in catalysis, sensing, and biomedicine. At present, there is no reports on the preparation of gallium nanoclusters by ultrasonication. In this work, two types of gallium nanoclusters were successfully prepared by one-step ultrasonication method by adjusting the para-meters of ultrasonic temperature and ultrasonic time. The temperature effect during the preparation of gallium nanoclusters was analyzed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM), and the morphological characteristics and forming process of gallium nanoclusters were studied. It was found that the optimum temperature for gallium nanocluster formation was around 70 ℃ at 60 min. In addition, the morphology of gallium nanoclusters can be divided into two types:the first type is a cluster structure formed by gallium growing radially outwards, and the second type formed by interspersed rods. This study enriches the variety of gallium nanoclusters and provides a useful refe-rence for the morphological control during the ultrasonic preparation of gallium micro/nano particles.
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2024, Vol. 38 
