Preparation of novel morning glory structure γ-MnO/carbon nanofiber composite materials with the electrospinning method and their high electrochemical performance.

A novel γ-MnO/carbon nanofiber composite electrode material with a morning glory structure was prepared for the first time by electrospinning a mixture solution of Mn(CHCOO) salt and polyacrylonitrile and subsequently treating it with NH atmosphere. The resultant materials were applied in supercapacitors, exhibiting a high voltage of 2 V and high energy density of 15.7 W h kg at the current density of 0.