Akademik Veri Yönetim Sistemi
MATERIALS, cilt.16, ss.1-14, 2023 (SCI-Expanded)
In this study, boron carbide powders consisting mainly of nano/micro fibers or polyhedralequiaxed particles were synthesized via the sol–gel technique, and the influence of particle morphology on electrochemical performance of boron carbide electrodes was investigated. Thermal
decomposition duration of the precursors played a determinant role in the final morphology of the
synthesized boron carbide powders. The morphology of boron carbide powders successfully tuned
from polyhedral-equiaxed (with ~3 µm average particle size) to nano/micro fibers by adjusting the
thermal decomposition duration of precursors. The length and thickness of fibers were in the range
of 30 to 200 µm and sub-micron to 5 µm, respectively. The electrochemical performance analysis
of boron carbide powders has shown that the particle morphology has a considerable impact on
the boron carbide electrodes electrochemical performance. It was found that the synergetic effects
of polyhedral-equiaxed and nano/micro fiber morphologies exhibited the best electrochemical performance in supercapacitor devices, resulting in the power and energy density of 34.9 W/kg and
0.016 Wh/kg, respectively.