posted on 2024-05-24, 14:04authored bySuk Jekal, Zambaga Otgonbayar, Yeon-Ryong Chu, Ha-Yeong Kim, Chan-Gyo Kim, Jiwon Kim, Jungchul Noh, Hyemin Kim, Hyung Sub Sim, Hyung Ju Lee, Hyunchang Lee, Chang-Min Yoon
Dual-silane-capped
boron nanoparticles (DS-BNPs) with enhanced
dispersion stability in jet fuels were synthesized for the first time.
To this end, a complete dual-silane capping process was implemented
via continuous stirring under standard reference conditions. The ratio
of dual-silane was adjusted to optimize the experimental procedure
for successfully capping the BNPs. The same amount of silane could
completely cap the surfaces of the BNPs. The morphological and chemical
changes, thermal properties, and comprehensive behavior of the BNPs
after single- and dual-silane capping were investigated by using analytical
methods. The analysis results indicated the successful dual-silane
capping of the BNPs owing to the oxide layer and its hydroxyl group,
which enabled the organic groups of silane to replace the hydroxyl
groups of the BNPs, resulting in successful surface modification by
the condensation reaction. The DS-BNPs showed excellent dispersion
stability in jet fuels for 50 days without sedimentation and the shortest
combustion time (1300 ms) with the highest calorific value of 10,734
kcal kg–1. Surface modification successfully achieved
optimal dispersion stability and increased the energy content of the
nanofluid fuel. This study highlights the significant benefits of
DS-BNPs as promising materials for nanofluid fuels to improve the
performance of jet fuels.