Abstract
Nano-energetic materials have recently become a subject of intense interest due to improved performance in terms of energy release, ignition, and mechanical properties. Here we report the mechanism of highly energetic behavior of nano-crystalline porous silicon. We show that the nanocomposite reacts at lower temperatures than that required for the dehydration of NaClO 4·1H 2O by itself. Using time-resolved emission during energetic reaction and infrared absorption analysis after explosion, we demonstrated the formation of O and OH radicals during the explosion. A detailed chemical mechanism for the formation of O and OH radicals is presented based on QRRK estimates.
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