articleNature Chemical EngineeringJan 11, 2024HYBRID OA

Multi-scale physics of bipolar membranes in electrochemical processes

nLIGHT (United States) · Lawrence Berkeley National Laboratory · +4 more institutions

Indexed incrossref

Abstract

Bipolar membranes (BPMs) enable control of ion concentrations and fluxes in electrochemical cells suitable for a wide range of applications. Here we present the multi-scale physics of BPMs in an electrochemical engineering context and articulate design principles to drive the development of advanced BPMs. The chemistry, structure, and physics of BPMs are illustrated and related to the thermodynamics, transport phenomena, and chemical kinetics that dictate ion and species fluxes and selectivity. These interactions give rise to emergent structure–property–performance relationships that yield design criteria for BPMs that achieve high permselectivity, durability, and voltaic efficiency. The resulting performance…

No related works found for this paper.

Funding