Facile chemical synthesis of nanoporous layered δ-MnO2 thin film for high-performance flexible electrochemical capacitors

Oil–water interfacial synthesis of graphene–polyaniline–MnO2 hybrids using binary oxidant for high performance supercapacitor

“…For G-PANI, these characteristic bands of GO disappear completely, suggesting that GO can be reduced to G successfully by aniline, and four new peaks at 1570, 1482, 1294, 1124 cm À1 are associated with C¼N, C¼C, CÀ ÀN and CÀ ÀH in PANI, respectively [10]. Compared with G-PANI, a new peak corresponding to the vibration of MnÀ ÀO appears at 538 cm À1 [38], indicating the presence of MnO 2 in the G-P-Mn hybrids synthesized using the binary oxidant of KMnO 4 and (NH 4 ) 2 S 2 O 8 .…”