Stenina, IA. Sistat, Ph. Rebrov, AI. Pourcelly, G. Yaroslavtsev, AB. Ion mobility in Nafion-117 membranes. Desalination. 2004; 170: 49-57.I.A. Stenina Ph. Sistat A.I. Rebrov G. Pourcelly and A.B. Yroslavtsev.Ion
Learn how Nafion™ ion exchange materials can operate in the most challenging and innovative applications, while retaining their properties over time.
Furthermore, the transport of the different counter-ion species through the membrane is described by membrane/solution equilibria and ion mobility [14]. To elucidate the equilibrium between an IEM and a multi-electrolyte solution, an understanding of the ion activity (ai) [15] in each phase ...
While various new electrochemical processes have been developed, the use of expensive commercial ion-exchange membranes, such as the poly(perfluorosulfonic acid)-based Nafion (~US$500 per m2), dominate, despite suffering from poor selectivity due to swelling in water. Intensive research efforts have...
owing to its distinctive electrical filtration capabilities and scalability. Briefly, the perm-selectivity of nanoporous membranes initiates an electrolyte concentration polarization on both sides of the membrane. In the case of cation-selective membranes, an ion depletion zone forms on the anodic side ...
Lithium-ion batteries (LIBs) with liquid electrolytes and microporous polyolefin separator membranes are ubiquitous. Though not necessarily an active component in a cell, the separator plays a key role in ion transport and influences rate performance, cell life and safety. As our understanding of sep...
2H+and –NR3+(R = hydrocarbon chain) cations, allowing for the mobility of counteranions (e.g., OH−, CO32−, HCO3−); they are discussed in Sect.3.2. A CEM and an AEM can be laminated together to form a new class of membranes called BPMs, which are reviewed in Sect....
PSS/PAH LBL on Nafion cation exchange membranes always show significantly higher selectivities for monovalent ions over biva- lent ions. Interpretation of such contradictory results requires a rigorous description of mass transport through multilayer architectures. The parameters of interest in such recent ...
The Born model or its modifications consider a single ion at infinite dilution, while, in reality, the ion concentration is always finite, especially, in the case of membranes containing fixed charges. The Born model of a single ion solvation then captures the most essential physics, but – ...
proton exchange groups in the chemical structure of the material. The sulfonic acid function is one of the most efficient proton exchange groups, however, carboxylic or phosphonic acid groups or the like can also be used, as well as other groups set forth herein below, for proton mobility. ...