TY - JOUR
AU - Loza, N. V.
AB - A series of composite ion-exchange membranes based on an heterogeneous cation-exchange MK‑40 membrane and polyaniline is obtained under the conditions of electrodiffusion of a monomer and an oxidizing agent. The process of polyaniline synthesis on the membrane surface is accompanied by recording of chronopotentiograms and pH of the solution leaving the desalination compartment. The initial cation-exchange MK-40 membrane and obtained composites based on it are studied by voltammetry and chronopotentiometry in solutions of NaCl, CaCl2, and MgCl2 in the same flow-type electrodialysis cell, in which the composites are obtained. To calculate the transport numbers of counterions in the membranes in solutions of CaCl2 and MgCl2 by chronopotentiometry, the apparent fraction of the conductive membrane surface in a solution of NaCl is calculated based on the experimental data on the potentiometric transport numbers of counterions in the membrane. The conditions for the synthesis of polyaniline on the surface of an heterogeneous MK-40 membrane which result in the preparation of samples with selectivity to singly charged ions are found out.
TI - Electrochemical Behavior of Polyaniline-Modified Cation-Exchange Heterogeneous Membranes in Solutions Containing Mono- and Bivalent Cations
JO - Membranes and Membrane Technologies
DO - 10.1134/s2517751623030034
DA - 2023-06-01
UR - https://www.deepdyve.com/lp/springer-journals/electrochemical-behavior-of-polyaniline-modified-cation-exchange-gU6lJ8Xwpg
SP - 178
EP - 192
VL - 5
IS - 3
DP - DeepDyve
ER -