微乳法制备纳米级WO_3粉体

Preparation of the Nanometer scale WO 3 Powders Prepared by Emulsion Method

以最佳重量比６∶４的ＣＨ２－ＣＨＯＨ和ＣＨ３Ｃ１０Ｈ２２ＣＯＣＨ（ＯＨ）ＣＨ（ＯＨ）ＮＨ２作为混合型乳化剂，在二甲苯／水体系中首次制备了纳米级三氧化钨粉体，确定了最佳反应条件。在不同温度下处理得到的纳米级粉体为分散的规则球形粒子（最小尺寸为１５ｎｍ）。用透射电镜和Ｘ－Ｒａｙ衍射对各种温度处理得到的ＷＯ３粉体进行了分析。所制备的ＷＯ３纯度为９９．９６％。

Using CH-CHOH and CH 3C 10 H 22 COCH(OH)CH(OH)NH 2(weight ratio of 6∶4) as a mixing surfactant, the nanometer scale WO 3 particles with dispersion and sphere were first prepared, and the minimum size was 15nm, the optimum reaction conditions were also confirmed. The XRD and TEM were used to measure the powders. The purity of WO 3 powders prepared by this approach is 99.96 %.