Recent research has revealed that polyaniline-graphene oxide (PAGO) composites with conductive polymer strands located at the surface and between graphene oxide sheets exhibit high capacitance and superior cycling stability for supercapacitor applications. We are currently exploring the effect that specific morphosynthetic conditions (such as time, concentration, temperature, and oxidant) have on PANI morphology, guest-host interactions, and capacitance response. SEM, FTIR, and XRD studies indicated successful syntheses of PAGO composites using vanadium oxide as an oxidant. Infrared spectroscopy studies verified that PANI was in the conductive emeraldine salt form and confirmed strong interactions between PANI and GO heterointerfaces. Morphological studies of PAGO composites indicted that we can control PANI coverage on GO surfaces through both time and initial aniline concentration. Laponite nanoparticles were also employed as structure-directing agents within these PAGO composites to improve colloidal dispersion, water processibility, and film formation. These morphosynthetic studies offer important insight to optimize supercapacitor performance.

Morphosynthetic studies of polyaniline/graphene oxide/Laponite nanoscaffolds

249th National Meeting (2015)

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