Bi2O3 particles 70 to 90 nm in size were prepared with the polyol method. According to this method a suitable metal precursor (e.g. halogenide, acetate, alcoholate) and a defined amount of water were heated in a high boiling alcohol (e.g. diethylene glycol). Based on temperatures up to 180 degreesC crystalline alpha -Bi2O3 particles were formed. The material was isolated by centrifugation and characterized by XRD and SEM. The size of Bi2O3 particles in colloidally stable diethylene glycol suspension as well as in diethylene glycol/water mixtures was determined with laser diffraction methods. These suspensions were used to prepare homogeneous thin Bi2O3 particle layers on planar glass substrates. (C) 2001 Kluwer Academic Publishers. [References: 12]
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机译：用多元醇法制备尺寸为70至90nm的Bi 2 O 3颗粒。根据该方法，在高沸点醇（例如二甘醇）中加热合适的金属前体（例如卤化物，乙酸盐，醇化物）和一定量的水。基于高达180℃的温度，形成结晶的α-Bi2 O 3颗粒。通过离心分离该材料，并通过XRD和SEM表征。用激光衍射法测定胶体稳定的二甘醇悬浮液以及二甘醇/水混合物中Bi2O3颗粒的大小。这些悬浮液用于在平面玻璃基板上制备均匀的Bi2O3薄层。 （C）2001 Kluwer学术出版社。 [参考：12]
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