Finite volume effects of ions in ionic membranes

A Boldini, M Porfiri - Electroactive Polymer Actuators and …, 2022 - spiedigitallibrary.org
Due to their favorable characteristics, including high permselectivity and chemical stability,
ionic membranes are widely adopted in electrochemical applications, including …

Charge dynamics and bending actuation in Aquivion membrane swelled with ionic liquids

J Lin, Y Liu, QM Zhang - Polymer, 2011 - Elsevier
The actuation strain and speed of ionic electroactive polymer (EAP) actuators are mainly
determined by the charge transport through the actuators and excess ion storage near the …

Evidence of counterion migration in ionic polymer actuators via investigation of electromechanical performance

W Hong, C Meis, JR Heflin, R Montazami - Sensors and Actuators B …, 2014 - Elsevier
Functional ionomeric polymer membranes are the backbone of a wide range of ionic
devices; the mobility of ions through the ionomeric membrane is the principle of operation of …

Experimental characterization of actuation of anion-exchange membranes in salt solution

N Ulbricht, A Boldini, C Bae… - Electroactive …, 2023 - spiedigitallibrary.org
Besides their use in separation and filtration processes, ion-exchange membranes have
been adopted as electroactive polymer actuators in soft robotics and biomedical …

A multi-cation model for the actuation of ionic membranes with ionic liquids

A Boldini - Materials Advances, 2024 - pubs.rsc.org
Soft actuators based on water-swollen ionic membranes are able to operate in water, a
critical feature for applications in biomedical engineering and underwater robotics. On the …

What are steric effects? A purely continuum model

A Boldini, M Porfiri - Electroactive Polymer Actuators and …, 2023 - spiedigitallibrary.org
In electrolyte solutions, the application of an external voltage elicits a series of complex
microscopic phenomena. When there is no charge transfer between solution and electrodes …

Solvation-driven electrochemical actuation

A Boldini, Y Cha, M Porfiri - Physical review letters, 2021 - APS
We demonstrate a novel principle of contactless actuation for ionic membranes in salt
solution based on solvation. Actuation is driven by differential swelling of the sides of the …

Solvation‐Driven Actuation of Anion‐Exchange Membranes

N Ulbricht, A Boldini, C Bae… - Advanced Materials …, 2022 - Wiley Online Library
Ion‐exchange membranes, conventionally utilized in separation processes of electrolyte
solutions, are electroactive polymers that display a unique coupling between …

A non-ideal solution theory for the mechanics and electrochemistry of charged membranes

A Boldini, M Porfiri - npj Computational Materials, 2022 - nature.com
Understanding how ions and solvent molecules migrate within charged membranes is
fundamental for advancing the analysis of biological membranes and the design of energy …

Micro-structured porous electrolytes for highly responsive ionic soft actuators

U Raza, S Oh, R Tabassian, M Mahato, IK Oh - Sensors and Actuators B …, 2022 - Elsevier
Electro-active ionic polymer actuators are an attractive type of soft actuators that bend due to
the ion migration in the polymer electrolyte membrane under the electrical field. However …