The Prevention of Environmental Damage in Durable Unsymmetrical Huge-capacitors Based on MnO2 and Fe2O3 Nanotubes

Subject Areas : Structural Engineering

M.  Ebrahimi ¹ (Department of Mechanical Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran)
seyed Ali  Haj Seiyed Taghia ² (Department of Civil Engineering Qazvin Branch, Islamic Azad University, Qazvin, Iran)

Received: 2014-04-08 Accepted : 2014-06-25 Published : 2014-04-01

Keywords: Environment, Durable, Huge-capacitor, MnO2, Fe2O3,

Abstract :

The prevention of environmental damage in durable unsymmetrical huge-capacitor (UHC) with α-MnO2 nanotubes and amorphous Fe2O3 nanotubes grown on flexible carbon fabric is first designed and fabricated. The assembled novel flexible UHC device with an extended operating voltage window of 1.6 V exhibits excellent performance such as a high energy density of 0.55 mWh/cm3 and good rate capability. The UHC devices can find numerous applications as effective power sources, such as powering color-switchable sun glasses and smart windows.