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Ion-specific phenomena limit energy recovery in forward-biased bipolar membranes

Journal Article · · Nature Chemical Engineering

The ability for bipolar membranes (BPMs) to interconvert voltage and pH makes them attractive materials for use in energy conversion and storage. Reverse-biased BPMs, which use electrical voltage to dissociate water into acid and base, have become increasingly well studied. However, forward-biased BPMs (FB-BPMs), in which voltage is extracted from pH gradients through recombination, require further study. Here physics-based modeling elucidates how the complex coupling of transport and kinetics dictates the performance of FB-BPMs in electrochemical devices. Simulations reveal that the open-circuit potential of FB-BPMs is dictated by the balance of ion recombination and crossover, where recombination of buffering counter-ions attenuates the open-circuit potential. Counter-ion mass-transport limitations and uptake of ionic impurities limit achievable current densities by reducing the applied pH gradient or the available fixed-charge sites that mediate recombination. Further, the model highlights the importance of selective ion management in mitigating energy losses and provides insight into the rational material design of FB-BPMs for energy applications.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); US Army Research Office (ARO); National Science Foundation (NSF)
Grant/Contract Number:
AC02-05CH11231; SC0024713
OSTI ID:
2565274
Journal Information:
Nature Chemical Engineering, Journal Name: Nature Chemical Engineering Journal Issue: 1 Vol. 2; ISSN 2948-1198
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

References (55)

Transport phenomena in flow battery ion-conducting membranes journal June 2020
Redox flow batteries: Mitigating cross-contamination via bipolar redox-active materials and bipolar membranes journal February 2023
Influence of CO2 dissolution into anion exchange membrane on fuel cell performance journal January 2013
Impact of carbonation processes in anion exchange membrane fuel cells journal February 2018
Bipolar membrane electrodialysis for energetically competitive ammonium removal and dissolved ammonia production journal June 2020
A Process for Capturing CO2 from the Atmosphere journal August 2018
Coupling covariance matrix adaptation with continuum modeling for determination of kinetic parameters associated with electrochemical CO2 reduction journal June 2023
A self-humidifying acidic–alkaline bipolar membrane fuel cell journal December 2015
Effect of CO 2 absorption on ion and water mobility in an anion exchange membrane journal March 2018
Bipolar membranes: A review on principles, latest developments, and applications journal January 2021
Bipolar membrane-assisted reverse electrodialysis for high power density energy conversion via acid-base neutralization journal April 2022
The need for ion-exchange membranes with high charge densities journal July 2023
Modelling of selective ion partitioning between ion-exchange membranes and highly concentrated multi-ionic brines journal May 2024
Engineering Catalyst–Electrolyte Microenvironments to Optimize the Activity and Selectivity for the Electrochemical Reduction of CO 2 on Cu and Ag journal February 2022
New Insights into Perfluorinated Sulfonic-Acid Ionomers journal January 2017
Origin of Limiting and Overlimiting Currents in Bipolar Membranes journal June 2023
High Pressure Electrochemical Reduction of CO 2 to Formic Acid/Formate: A Comparison between Bipolar Membranes and Cation Exchange Membranes journal January 2019
On the Nature of Field-Enhanced Water Dissociation in Bipolar Membranes journal November 2021
Quantum Chemical Prediction of p K a Values of Cationic Ion-Exchange Groups in Polymer Electrolyte Membranes journal January 2018
Gas-Induced Structural Damages in Forward-Bias Bipolar Membrane CO2 Electrolysis Studied by Fast X-ray Tomography journal April 2024
Understanding Multi-Ion Transport Mechanisms in Bipolar Membranes journal November 2020
Neutralization Short-Circuiting with Weak Electrolytes Erodes the Efficiency of Bipolar Membranes journal January 2023
Pure-Water-Fed Forward-Bias Bipolar Membrane CO2 Electrolyzer journal May 2024
High-Voltage Aqueous Redox Flow Batteries Enabled by Catalyzed Water Dissociation and Acid–Base Neutralization in Bipolar Membranes journal May 2021
Conversion of Bicarbonate to Formate in an Electrochemical Flow Reactor journal July 2020
Insights and Challenges for Applying Bipolar Membranes in Advanced Electrochemical Energy Systems journal June 2021
Continuum Model to Define the Chemistry and Mass Transfer in a Bicarbonate Electrolyzer journal January 2022
Catalytic Proton–Hydroxide Recombination for Forward-Bias Bipolar Membranes journal October 2022
Engineering Bipolar Interfaces for Water Electrolysis Using Earth-Abundant Anodes journal November 2023
Asymmetric Bipolar Membrane for High Current Density Electrodialysis Operation with Exceptional Stability journal October 2024
Hydration, Prediction of the pKa, and Infrared Spectroscopic Study of Sulfonated Polybenzophenone (SPK) Block-Copolymer Hydrocarbon Membranes and Comparisons with Nafion journal November 2021
Properties of Strongly Basic Anion Exchange Resins journal May 1951
Irreversible Processes in Electrolytes. Diffusion, Conductance and Viscous Flow in Arbitrary Mixtures of Strong Electrolytes journal November 1932
Limiting laws and counterion condensation in polyelectrolyte solutions. 8. Mixtures of counterions, species selectivity, and valence selectivity journal December 1984
Onsager’s Wien effect on a lattice journal August 2013
The future of low-temperature carbon dioxide electrolysis depends on solving one basic problem journal October 2020
Improving the efficiency of CO2 electrolysis by using a bipolar membrane with a weak-acid cation exchange layer journal December 2020
The role of ionic blockades in controlling the efficiency of energy recovery in forward bias bipolar membranes journal December 2023
Pure-water-fed, electrocatalytic CO2 reduction to ethylene beyond 1,000 h stability at 10 A journal January 2024
Mild pH-decoupling aqueous flow battery with practical pH recovery journal February 2024
Ion solvation kinetics in bipolar membranes and at electrolyte–metal interfaces journal March 2024
High-rate electroreduction of carbon monoxide to multi-carbon products journal August 2018
Partitioning of mobile ions between ion exchange polymers and aqueous salt solutions: importance of counter-ion condensation journal January 2016
Orientation of a bipolar membrane determines the dominant ion and carbonic species transport in membrane electrode assemblies for CO 2 reduction journal January 2021
Modeling the electrochemical behavior and interfacial junction profiles of bipolar membranes at solar flux relevant operating current densities journal January 2021
Analysis of bipolar membranes for electrochemical CO2 capture from air and oceanwater journal January 2023
Ion diode logics for pH control journal January 2012
Deviations from Ohm's Law in Weak Electrolytes journal September 1934
Current‐voltage curves of bipolar membranes journal July 1992
Current-Induced Membrane Discharge journal September 2012
Accelerating water dissociation in bipolar membranes and for electrocatalysis journal July 2020
A Dusty Fluid Model for Predicting Hydroxyl Anion Conductivity in Alkaline Anion Exchange Membranes journal January 2010
Theory of Multicomponent Phenomena in Cation-Exchange Membranes: Part III. Transport in Vanadium Redox-Flow-Battery Separators journal January 2020
Measurement of ion transport properties in ion exchange membranes for photoelectrochemical water splitting journal September 2022
The Acid–Base Flow Battery: Sustainable Energy Storage via Reversible Water Dissociation with Bipolar Membranes journal December 2020

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