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

蓝青铜由于在较低温度下的CDW运动而表现出许多有趣的行为，并且被期望在纳米带状晶体时表现出新颖的性质。然而，到目前为止，几乎不可能获得蓝色青铜纳米带。本研究的目的是发展其制备方法，首先发展了一种简单易行的蓝青铜单相制备方法。利用该方法，我们成功地制备出了沿着晶体B轴（对应于准一维金属导电方向）生长的钾蓝青铜K_（0.3）MoO_3纳米带。测量了纳米带的一些性质（纳米带系综的电导率和磁化率）。此外，我们成功地制备了铯蓝青铜Cs0.3MoO3和铯钾蓝青铜混合晶体Cs0.3-xKxMoO 3（0<x<0.3）的纳米带，这些纳米带不能通过通常的制备技术如熔盐法获得。

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.