Study on preparation of functional nanoribbons via solid phase reactions under hydrothermal conditions

由于CDW在较低温度下的运动，蓝青铜表现出许多有趣的行为，并有望在纳米带状晶体中表现出新的特性。然而，到目前为止，几乎不可能获得蓝青铜纳米带。本研究旨在研究其制备方法。首先，我们开发了一种简便的单相蓝青铜制备方法。利用该方法，我们成功地制备了钾蓝青铜K0.3MoO3纳米带，其沿晶体b轴生长良好，与准一维金属传导方向相对应。测试了纳米带的一些性能（电导率和纳米带系综磁化率）。此外，我们还成功地制备了铯蓝青铜Cs0.3MoO3纳米带和铯钾蓝青铜混合晶体Cs0.3-xKxMoO3 (0<x<0.3)，这是常规制备技术如熔盐法无法获得的。

Blue bronzes exhibit numerous interesting behaviors due to the CDW motion at a lower temperature and have been expected to show novel properties when being nanoribbon-like crystals. However, so far it was hardly possible to obtain blue bronze nanoribbons. In this study we aimed at developing preparation methods of them.First we developed a facile preparation method of single phase of blue bronze. Using the method we have succeeded in preparing the potassium blue bronze K0.3MoO3 nanoribbons grown well along the crystal b axis that corresponds to the direction of quasi-1D metallic conduction. Some properties of the nanoribbons (the electrical conductivity and the magnetic susceptibility of nanoribbon ensemble) were measured. Furthermore, we have succeeded in preparing nanoribbons of cesium blue bronze Cs0.3MoO3 and cesium-potassium blue bronze mixed crystals Cs0.3-xKxMoO3 (0<x<0.3) that cannot be obtained by usual preparation techniques such as molten salt methods.