Modeling actuation and sensing in ionic polymer metal composites by electrochemo-poromechanics

Leronni, Alessandro; Bardella, Lorenzo

doi:10.1016/j.jmps.2021.104292

Cited by 37 publications

(61 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Following the examples of the literature 11,23,[31][32][33] , we put forward two constraints that allow us to significantly simplify the description of the motion of the solution in the membrane. Specifically, we assume that connected pores are fully saturated, and we impose that the individual constituents of the mixture (solid phase, counterions, and solvent) are incompressible, such that 23…”

Section: Continuum Theory Of Mechanics and Electrochemistry Of Charge...mentioning

confidence: 99%

“…Constitutive equations that satisfy the second principle of thermodynamics can be derived upon differentiation of the Helmholtz free-energy density 34 , see "Methods". The only quantities that are not defined by the functional are the solvent and counterions' fluxes, for which we consider a Nernst-Planck form 11 , see "Methods". Due to the presence of ε, C 0 , and C + in the incompressibility constraint, the modification of the free-energy density with π affects the stress and electrochemical potentials of solvent and cations.…”

Section: Constitutive Equations and Excess Energymentioning

confidence: 99%

“…Modeling of charged membranes is central to understand biological processes and designing new, sustainable energy devices. Typically, charged membranes have been studied through the lens of electrochemistry, wherein the motion of charges is modeled by means of homogenized continuum treatments [9][10][11] , with roots in the classical Poisson-Nernst-Planck system that describes electrolytes in solution 12 . Extensions of these models include complex, non-ideal behavior of electrolytes within charged membranes 13,14 .…”

Section: Introductionmentioning

confidence: 99%

“…In this picture, membrane mechanics has often been neglected and relegated to a handful of phenomena in which deformations play a major role, such as mechanosensitive ionic gates in cell membranes 15 . A more thorough analysis of membrane chemoelectromechanics has been proposed for actuators and sensors based on ionic polymers, which transduce mechanical to electrochemical energy and vice versa 9,11,[16][17][18][19] . Despite these inquiries, the coupling between mechanics and electrochemistry has yet to be explored in many of the natural and artificial processes in which charged membranes play a key role.…”

Section: Introductionmentioning

confidence: 99%

“…In classical models of electrolyte solutions, the definition of the 'ideal' model is different, whereby long-range electrostatic interactions are typically included in addition to the ideal mixing term. Our choice of not including this term in the 'ideal' model is motivated by the previous literature on the mechanics and electrochemistry of charged membranes, where long-range electrostatic interactions have typically been neglected [9][10][11] .…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

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

Boldini

Porfiri

2022

npj Comput Mater

View full text Add to dashboard Cite

Understanding how ions and solvent molecules migrate within charged membranes is fundamental for advancing the analysis of biological membranes and the design of energy storage and production devices. Recent efforts highlighted a significant interplay between mechanics and electrochemistry in charged membranes, calling for the development of high-fidelity models to describe their interaction. Here, we propose a continuum theory of the chemoelectromechanics of charged membranes, accounting for potentially large deformations and non-idealities of the solution permeating the membrane. We demonstrate the potential applications of our theory within the study of ionic polymer actuators. Our theory predicts sizeable effects of non-idealities and mechanical deformations, enabling insight into the role of mechanics on solute and solvent transport within charged membranes.

show abstract

Section: Continuum Theory Of Mechanics and Electrochemistry Of Charge...mentioning

confidence: 99%

Section: Constitutive Equations and Excess Energymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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

Boldini

Porfiri

2022

npj Comput Mater

View full text Add to dashboard Cite

show abstract

Application‐Oriented Modeling of Soft Actuator Ionic Polymer–Metal Composites: A Review

Jiang,

Lin,

et al. 2023

Advanced Intelligent Systems

View full text Add to dashboard Cite

Compared to conventional actuators, the soft ionic polymer–metal composite (IPMC) actuator has significant advantages in specific applications, and the mathematical model of IPMC actuators is essential to comprehending and applying IPMCs. Due to the inherent characteristics of IPMCs and the impact of the manufacturing and measurement processes, it is challenging to developa reliable model. This article provides a comprehensive overview of the developments in IPMC actuator modeling. In particular, three types of models are examined and contrasted: the nonphysical identification model, the partial‐physical model, and the physical‐based model. In order to comprehend the current state of numerous IPMC actuator models, the characteristics, evolution, and functions of each type of model are discussed. Afterward, the evolution of the IPMC actuators’ applications is discussed. Finally, promising research directions for IPMC actuator models are identified that can more effectively facilitate the development of IPMC‐based devices.

show abstract

Recent Advances in Sources of Bio‐Inspiration and Materials for Robotics and Actuators

Yang

Chen

et al. 2023

Small Methods

View full text Add to dashboard Cite

Bionic robotics and actuators have made dramatic advancements in structural design, material preparation, and application owing to the richness of nature and innovative material design. Appropriate and ingenious sources of bio‐inspiration can stimulate a large number of different bionic systems. After millennia of survival and evolutionary exploration, the mere existence of life confirms that nature is constantly moving in an evolutionary direction of optimization and improvement. To this end, bio‐inspired robots and actuators can be constructed for the completion of a variety of artificial design instructions and requirements. In this article, the advances in bio‐inspired materials for robotics and actuators with the sources of bio‐inspiration are reviewed. The specific sources of inspiration in bionic systems and corresponding bio‐inspired applications are summarized first. Then the basic functions of materials in bio‐inspired robots and actuators is discussed. Moreover, a principle of matching biomaterials is creatively suggested. Furthermore, the implementation of biological information extraction is discussed, and the preparation methods of bionic materials are reclassified. Finally, the challenges and potential opportunities involved in finding sources of bio‐inspiration and materials for robotics and actuators in the future is discussed.

show abstract

Modeling actuation and sensing in ionic polymer metal composites by electrochemo-poromechanics

Cited by 37 publications

References 55 publications

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

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

Application‐Oriented Modeling of Soft Actuator Ionic Polymer–Metal Composites: A Review

Recent Advances in Sources of Bio‐Inspiration and Materials for Robotics and Actuators

Contact Info

Product

Resources

About