According to Wiki: Nano-thermite is the common name for a subset of metastable intermolecular composites (MICs) characterized by a highly exothermic reaction after ignition.
That is almost an understatement. MICs are not just an incremental gain in explosive power, but when processed in the sub 2 nanometer range, there have been blog reports of order of magnitude increases, consistent with k-shell interaction. Could be rumor. Could be fractional hydrogen . if in processing the iron oxide, water is taken on (or added intentionally). Nano-thermites (thermates) contain a tightly bound oxidizer and a reactive metal like aluminum. Magnesium is even better. The tighter the oxidant is bound, the more reactive can be the reducing agent. Imagine liquid triple bound CO, the most tightly bound oxidant possible, in a nanocavity matrix of magnesium, for instance - how does it compare with nanothermite?
