6533b86ffe1ef96bd12cdc5c

RESEARCH PRODUCT

Channel flow at an immobilised liquid|liquid interface

Christoffer JohansPeter LiljerothKyösti KontturiJosé A. Manzanares

subject

ChromatographyAqueous solutionChemistryGeneral Chemical EngineeringAqueous two-phase systemMechanicsAnalytical ChemistryOpen-channel flowElectrochemical cellVolumetric flow ratePhysics::Fluid DynamicsPhase (matter)ElectrochemistryITIESCyclic voltammetry

description

A novel rectangular channel flow electrochemical cell for the study of liquid | liquid interfaces is presented. The organic phase is immobilised by the use of a gelling agent, while the aqueous phase flows past the interface. This creates an asymmetric setup that allows us to establish diagnostic criteria to determine, for example, the direction of the ion transfer. The effects of varying flow rate and sweep rate have been considered both theoretically and experimentally. By comparison with two-dimensional simulations, it is demonstrated that a simple one-dimensional theory can be used to describe the cyclic voltammetry response of the channel flow cell.

https://doi.org/10.1016/s0022-0728(00)00029-2