2026-06-05T15:32:25Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/310172026-02-03T10:58:52Zcom_10630_2254col_10630_37953

00925njm 22002777a 4500 dc Romero Fernández, Virginia author Gelde, Lourdes author Benavente-Herrera, Juana author 2023-08-17 Electrochemical characterization of positively and negatively charged membranes is performed by analyzing membrane potential values on the basis of the Teorell–Meyer–Sievers (TMS) model. This analysis allows the separate estimation of Donnan (interfacial effects) and diffusion (differences in ions transport through the membrane) contributions, and it permits the evaluation of the membrane’s effective fixed charge concentration and the transport number of the ions in the membrane. Typical ion-exchange commercial membranes (AMX, Ionics or Nafion) are analyzed, though other experimental and commercial membranes, which are derived from different materials and have diverse structures (dense, swollen or nanoporous structures), are also considered. Moreover, for some membranes, changes associated with different modifications and other effects (concentration gradient or level, solution stirring, etc.) are also analyzed. Romero, V., Gelde, L., & Benavente, J. (2023). Electrochemical Characterization of Charged Membranes from Different Materials and Structures via Membrane Potential Analysis. Membranes, 13(8), 739. https://doi.org/10.3390/membranes13080739 https://hdl.handle.net/10630/31017 10.3390/membranes13080739 Electroquímica industrial Membranas (Tecnología) Electrochemical characterization of charged membranes from different materials and structures by membrane potential analysis.