Synthesis, structural characterization, electrochemical, and electrical study of polystyrene-based manganous tungstate composite cation exchange membrane

Abstract

The polystyrene-based manganous tungstate composite membrane was prepared by applying sol–gel method. The membrane was characterized by Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, differential thermal analysis, scanning electron microscopy, and (LCR) study. Membrane was found to be crystalline, the arrangement of particle was uniform, and there were no sign of visible breakage or cracks. The theoretical value of potential was determined by Teorell–Meyer–Sievers, method and the electrochemical property was measured by a potentiometer. From observation, it is clear that the membrane potential increases with decreasing the concentration of electrolytes and the charge density follows the reverse order of potentials. By observing transport number the mobility ratio, distribution coefficient, and charge effectiveness can be calculated very easily.

Keywords:

• Inorganic compounds
• Polymer
• Sol–gel chemistry
• X-ray diffraction
• Mechanical and electrical properties

Acknowledgment

The authors gratefully acknowledge the Chairman, Department of Chemistry, and Aligarh Muslim University, Aligarh (India) for providing necessary research facilities for FTIR, LCR, and TGA/DTA analysis. We are also thankful to the UGC for providing financial assistance, Center of Excellence in Materials Science-Department of Applied Physics AMU Aligarh to provide XRD facility and USIF-AMU Aligarh for Scanning electron microscope facility.