A simple hydrothermal route to GaOOH intersecting-rods with regular diamond-like cross section

作者：Chen, S G^*; Luo, S M; Zhou, Y; Chen, Y; Liu, Y Q; Long, C G

来源：Materials Letters, 2008, 62(30): 4566-4569.

DOI：10.1016/j.matlet.2008.09.001

• Gallium oxide hydroxide
• Hydrothermal
• Crystal structure
• Crystal growth

GaOOH crystals were synthesized by a simple hydrothermal method at 90-200 degrees C for 18 h. The products were characterized by X-ray powder diffraction (XRD), field emission scanning electron microscopy (FESEM) and high-resolution transmission electron microscope (HRTEM). The rods synthesized at 110-150 degrees C exhibited intersecting morphology and regular diamond-like cross section with a diagonal length ratio of 2:1, and those synthesized at 180-200 degrees C exhibited nunchakus-like architecture. The formation of diamond-like cross section was due to homogeneous growth of lattice planes, namely {110}, along [410], [4 (-) over bar 10], [(-) over bar 410], and [4 10] directions of orthorhombic GaOOH. Moreover, the formation of the trunk was due to the growth along [001] direction.

• 出版日期2008-12-15
• 单位长沙理工大学; 湖南科技大学