| 초록 |
Manganese oxide-loaded porous carbon nanofibers are prepared by electrospinning polyacrylonitrile nanofibers containing different amounts of Mn(CH3COO)2, followed by thermal treatments in different environments. It is found that the manganese salt may transform into γ-Mn(OOH)2 or other Mn compounds during the thermal oxidation in air environment, while further thermal treatment in inert atmosphere results in MnO and Mn3O4 particles confined to a nanoporous carbon structure. Surface morphology properties, element components and crystal structures are characterized using various analytical techniques via X-ray powder diffraction (XRD), elemental analysis (XPS), and nitrogen adsorption-desorption experiments. The CO2 capture capacity of composite materials were investigated by thermal gravimetric analysis (TGA) at 60oC. |
