No abstract

Polypyrrole (PPy) nanowire network plates with both average length and width in tens of micrometers were prepared in an aqueous solution containing cetyltrimethylammonium bromide (CTAB) and nitric acid (HNO 3 ) by chemical oxidative polymerization methods. It is found that PPy plates are constructed with double layers of nanowire networks. The influences of recipe such as the concentration of CTAB, HNO 3 , and pyrrole, as well as the reaction temperature on the morphologies of produced PPy were systematically investigated. By control experiment employing H 2 SO 4 or HCl in place of HNO 3 , it is disclosed that HNO 3 probably plays a key role in forming PPy plates. A plausible forming mechanism of PPy plate structures is offered.