Towards a unified description of the host–guest coupling in the course of insertion processes

Vakarin, E. V.; Badiali, J.P.

doi:10.1007/s10008-010-1086-9

Cited by 3 publications

References 59 publications

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Strain–capacitance relationship in polymer actuators based on single-walled carbon nanotubes and ionic liquid gels

Randriamahazaka

Asaka

2017

Faraday Discuss.

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We investigate the electromechanical properties of bucky-gel electrochemical actuators incorporating various amounts of single-walled carbon nanotubes and an ionic liquid electrolyte, 1-butyl-3-methylimidazolium tetrafluoroborate, that are able to convert electrochemical energy into mechanical energy. The interplay between mechanical and electrochemical effects is studied. The electromechanical responses are investigated by means of electrochemical impedance spectroscopy and bending displacement measurements. We develop a theoretical model that allows us to rationalize the electromechanical properties of the bucky-gel actuators. This model takes into account electrochemical stress due to the intercalation (de-intercalation) process, which generates the strain and bending of the actuators. We then analyze the relationship between the strain and the real part of the complex capacitance by introducing a strain-capacitance coefficient. This coefficient is related to the electrochemical stress and the amount of the ionic adsorption (desorption) at the double-layer. From a practical point of view, the determination of the strain-capacitance coefficient is helpful for characterizing and optimizing the performance of electrochemical actuators.

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Strain–capacitance relationship in polymer actuators based on single-walled carbon nanotubes and ionic liquid gels

Randriamahazaka

Asaka

2017

Faraday Discuss.

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General thermodynamic theory of the stress-composition interaction for bucky-gel electrochemical actuators

Randriamahazaka

Asaka

2016

SPIE Proceedings

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Perspectives on supercapacitors, pseudocapacitors and batteries

Bakker¹,

Frazier²,

Burkett³

et al. 2012

Nanomaterials and Energy

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With the anticipated increase in renewable wind and solar energy, efficient storage of electrical energy for balancing energy generation and demand on various time scales is becoming increasingly important. This review summarises the fundamentals of electrical energy storage in capacitors and batteries, discusses the similarities and differences of the two classes of devices and addresses the potential impact of the current research. A number of new materials and device structures that are anticipated to play roles in new devices are reviewed in greater detail. Topics covered are carbon nanotubes (CNTs), graphene, nanostructured transition metal oxides, silicon-based devices, ionic liquids (ILs), ion-conductive polymers and asymmetric supercapacitors.

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Towards a unified description of the host–guest coupling in the course of insertion processes

Cited by 3 publications

References 59 publications

Strain–capacitance relationship in polymer actuators based on single-walled carbon nanotubes and ionic liquid gels

Strain–capacitance relationship in polymer actuators based on single-walled carbon nanotubes and ionic liquid gels

General thermodynamic theory of the stress-composition interaction for bucky-gel electrochemical actuators

Perspectives on supercapacitors, pseudocapacitors and batteries

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