6533b86dfe1ef96bd12ca7fe

RESEARCH PRODUCT

Observable Streaming Potential in Membranes

Javier Garrido

subject

Work (thermodynamics)Renewable Energy Sustainability and the EnvironmentChemistryObservableCondensed Matter PhysicsStreaming currentSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsPressure differenceElectrokinetic phenomenaClassical mechanicsMembraneMaterials ChemistryElectrochemistryRelaxation (physics)Electric potential

description

Theories describing the electrokinetic processes in membranes usually involve nonobservable variables. One of these phenomena is the streaming potential, i.e., the electric potential generated by a pressure difference imposed across the membrane system. In this work the streaming potential is successfully described by using observable variables in the framework of thermodynamics of irreversible processes. The observable electric potential is the central quantity of the transport equations. The relaxation with time of this electric potential difference is well explained by the solute flux in these transport equations. The fluxes and forces defined in the formulation permit one to analyze the transport of the constituents through the membrane pores.

https://doi.org/10.1149/1.1614271