Abstract Single crystalline K 0.4 WO 3 whiskers were successfully prepared at temperature of 360°C through a hydrothermal reaction using WO 3 as tungsten source, KOH as potassium source, and hydrazine hydrate (N 2 H 4 ·H 2 O) as reducing agent. X-ray powder diffraction showed the as-prepared whiskers was tetragonal K 0.475 WO 3 with cell parameters of a =12.29 A and c =3.824 A. Scanning electron microscope observation showed that the size of whiskers reached up to 2 mm in length and 6–25 μm in diameter. The influence of some reaction parameters, including the pressure-relief process, on the growth of the whiskers was studied. The possible chemical solution transport mechanism was also discussed.

中文翻译：

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通过减压辅助水热过程生长 K0.4WO3 晶须

摘要 以WO 3 为钨源，KOH为钾源，水合肼（N 2 H 4 ·H 2 O）为还原剂，在360℃下通过水热反应成功制备了单晶K 0.4 WO 3 晶须。X 射线粉末衍射表明制备的晶须为四方晶须 K 0.475 WO 3，晶胞参数 a =12.29 A 和 c =3.824 A。扫描电镜观察表明晶须尺寸达到 2 mm 长和 6 –25 微米直径。研究了包括减压过程在内的一些反应参数对晶须生长的影响。还讨论了可能的化学溶液传输机制。