SCHEDULED MAINTENANCE
Solvothermally synthesized nanoporous hypercrosslinked polyaniline: studies of the gas sorption and charge storage behavior†
Abstract
A facile solvothermal method has been developed for the synthesis of high surface area nanoporous hypercrosslinked polyaniline (HCPANISs). A series of samples have been prepared by varying the hypercrosslinker content and reaction temperature. The maximum specific surface area (SABET) of 711 m2 g−1 with the pore size distribution centered at 0.64 nm was measured for the sample synthesized with 1 mL diiodomethane (hypercrosslinker) at 160 °C (HCPANIS-1 mL-160 °C). This specimen further exhibited a CO2 and CH4 uptake of 14.7 and 1.8 wt%, respectively, at 0 °C and 1 bar. It also showed the H2 storage capacity of 1.18 wt% at −196 °C and 1 bar. HCPANIS-1 mL-160 °C was further investigated for electrochemical supercapacitor applications. The maximum specific capacitance calculated was 580 F g−1 at a scan rate of 3 mV s−1 with 68% retention capacity over 10 000 cycles at a current density of 10 A g−1.
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