Bubble effects on ion exchange membranes — an electrochemical study

摘要: Bubble attachment on ion exchange membranes during electrolysis in chlor-alkali cells is of great concern because it has a marked influence the cell voltage. Du Pont and Asahi Glass Corporation have developed new membranes, Nation 961 Flemion 775, respectively. By introducing inorganic compounds onto membrane surface they been made hydrophilic to such degree that bubble effect can be ignored even when cathode anode touch electrolysis. Thus, an advanced gap (MGC) prevented from shrinkage vibration, voltage reduced. Although gas evolution electrodes widely studied (e.g. [1-5]), little information exists membranes. Bergner [6] proposed simple method ascertain whether there serious accumulation electrolysis, or suitable for MGC technology, according decreases continuously as distance between decreased zero. Here, investigate reported which uses conventional electrochemical linear sweep voltametry (LSV) four electrode system.