Two-dimensional array of polyoxomolybdate nanoball constructed by Langmuir-Blodgett semiamphiphilic method
Two-dimensional array of polyoxomolybdate nanoball constructed by Langmuir-Blodgett semiamphiphilic method
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DOI：
10.1021/cm070436e
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发表时间：
2007-05-15
影响因子：
8.6
通讯作者：
Yamase, Toshihiro
中科院分区：
文献类型：
--
作者：
Clemente-Leon, Miguel;Ito, Takeru;Yamase, Toshihiro
以Mo-132水溶液为底相，二甲基双十八烷基铵通过Langmuir-Blodgett（LB）半两亲法成功构建了多钼酸纳米球二维阵列（[(Mo72Mo60O372)-Mo-VI-O-V(CH3COO)(30)(H2O)(72)](42-), Mo-132） (DODA) 作为阳离子两亲物。紫外-可见光 (UV-vis) 和红外 (IR) 光谱证实了组合 LB 膜中 Mo-132 纳米球分子结构的守恒性。镜面 X 射线反射率 (SXR) 测量与紫外-可见光谱相结合表明，Mo-132/DODA LB 薄膜具有明确的层状结构，其中包含密集的二维 Mo-132 纳米球阵列。 Mo-132纳米球沉积到固体基底上后保留了电化学特性，这证明LB半两亲方法是制备由功能性纳米簇组成的薄膜的二维分子器件的有效方法。
A two-dimensional array of polyoxomolybdate nanoball ([(Mo72Mo60O372)-Mo-VI-O-V(CH3COO)(30)(H2O)(72)](42-), Mo-132) was successfully constructed by a Langmuir - Blodgett (LB) semiamphiphilic method by using Mo-132 aqueous solution as a subphase and dimethyldioctadecylammonium (DODA) as a cationic amphiphile. Conservation of molecular structure of the Mo-132 nanoball in the built-up LB film was confirmed by ultraviolet - visible (UV - vis) and infrared (IR) spectroscopy. Specular X-ray reflectivity (SXR) measurements combined with UV - vis spectroscopy revealed that the Mo-132/DODA LB film had a well-defined layered structure containing a densely packed two-dimensional array of the Mo-132 nanoballs. The electrochemical characteristics of the Mo-132 nanoballs were retained after the deposition onto the solid substrates, which verifies that the LB semiamphiphilic method is an effective way to fabricate thin films composed of functional nanosized clusters toward a two-dimensional molecular device.