Dangerous, an explosion of polyaniline nanomaterials

Polyaniline nanomaterials were successfully prepared by potentiostatic polymerization method, and then post-treated by the aqueous solution containing HClO4 and H2O2, I2, FeCl3, or APS, respectively. The product was dried under vacuum condition at least 72-h, and then it was characterized by SEM, FTIR and UV–Vis techniques. While product treated with H2O2 was weighed, an accident, an explosion of polyaniline nanowires broke out. Here, experimental process is reported in detail and the explosive mechanism is proposed, and thus providing a warning for PANI nanomaterials research and production.