| 초록 |
Molybdenum trioxide (α-MoO3) with orthorhombic crystal structure has been intensively studied to control its shape and morphology to nanobelts, nanoflowers and nanoplates. Also, scalable and cost-effective solution chemistry synthesis methods have been developed apart from non-solution processed methods such as high temperature calcination or vacuum evaporation. Nevertheless, there has been no successful report of a method for synthesizing α-MoO3 nanoplates with size ranging from 10 to 100 μm through a solution process, because MoO6 octahedral crystals strongly favor growth in the [001] direction in solution chemistry. Herein, we inhibited the [001] growth of α-MoO3 by selectively passivating specific faces of MoO3 with TiO2. In addition, large-sized a-MoO3 nanoplates were synthesized by introducing titanium tetra isopropoxide (TTIP), a TiO2 precursor, in hydrothermal solution chemistry to promote growth along the [100] direction, and its growth mechanism was studied. |
