Electrochemical studies on Iron Tungstate membrane

Abstract

In Current study, the conductance’s of parchmwnt supported inron tungstate membrane bathed in potassium, sodium and ammonium nitrate solutions of different concentrations have been measured at different temperatures. Absolute reaction rate theory has thermodynamic parameters, ∆H# , ∆F# Ea and ∆S# . The activation energies are found to depend on site of penetration in a species which decrease with the increase in the concentration of the bathing Solutions. It is concluded that the membrane is weakly charged and ionic species retain their hydration shell at lead partially , while diffusing through the membrane pores. The values of ∆s# are negative indicating that partial immobilization ions takes place probably due to the interstitial permeation and ionic interaction with the fixed charge groups of the membrane skeleton.