The Structure of Silver Modified Flexible Graphene Electrodes for Actuators in Biomimetic Systems

Alekseyev, N. I.; Broyko, Anton P.; Kalyonov, Vladimir E.; Korlyakov, A.V.; Lagosh, Anton V.; Лучинин, В. В.; Khmelnitsky, I. K.

doi:10.1134/s0022476618040212

Cited by 8 publications

(8 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On this basis, we made an attempt to calculate and experimentally optimize the amount of silver in order to achieve the required conductivity level but to minimize the release of silver into the electrolyte volume at the same time [ 32 ].…”

Section: Actuators With Graphene Electrodesmentioning

confidence: 99%

“…We started with the requirement that the method of introducing silver into graphene electrodes should be relatively simple (e.g., as compared with the laser processing that will be concerned below). In contrast to [ 32 ], we did not use the PVDF-HFP composition as a polymer and BMIMBF 4 as a filler. Instead, a “classical” Nafion membrane filled with water was used, with the substitution of H + ions by Cu + ; i.e., we tried to combine CNT modified membrane with a Nafion water-filled membrane.…”

Section: Actuators With Graphene Electrodesmentioning

confidence: 99%

“…Therefore, some silver concentration exists under which a secondary saturation of the cluster-graphene-aqueous solution system is to be awaited. The mean silver cluster size and the upper quantity of silver which should be inserted into the system are estimated in [ 32 ] at the basis of the new phase nucleation theory and graphene silver cluster system simulation in the HyperChem quantum chemistry package.…”

Section: Actuators With Graphene Electrodesmentioning

confidence: 99%

“…The manufacturing technology of the RGO/Ag hybrid electrode and actuator as a whole was described by us in [ 32 , 34 ].…”

Section: Actuators With Graphene Electrodesmentioning

confidence: 99%

“…It is seen that in the electrode from a suspension corresponding to the estimate ( m Ag / m G ≈ 1), the conductivity is only several times less than the possible maximum. We can take for this value m Ag / m G ≈ 20–25, obtained in [ 32 ]. In our experiments, it is ~400 S/cm.…”

Section: Actuators With Graphene Electrodesmentioning

confidence: 99%

See 4 more Smart Citations

Ionic EAP Actuators with Electrodes Based on Carbon Nanomaterials

et al. 2021

View full text Add to dashboard Cite

Flexible polymer-based actuators, often also called artificial muscles, are an essential part of biomimetic systems that mimic the movement principles of animal world creatures. The most used electrode material to force the actuator move is an ensemble of noble metal nanoparticles in the electroactive polymer surface. Noble metal electrodes have enough electrical conductivity and elasticity and are not subjected to oxidation. However, high cost of such electrodes and their tendency to cracking dictate the need for searching other materials, primarily carbon ones. The review considers several options for this search. For example, carbon nanotubes and graphene have excellent properties at the level of a single individually taken nanotube or graphene sheet. However, conservation of these properties in structurally imperfect film electrodes requires a separate study. In addition, there are problems of compatibility of such electrodes with the polymers that requires cumbersome technologies, e.g., hot pressing, which complicates the production of the actuator as a whole. The review concerns the technology options of manufacturing actuators and the results obtained on their basis, both including hot pressing and avoiding this procedure. In particular, the required level of the graphene oxide reduction in hydrazine provides sufficient adhesion at rather high electrical conductivity of the graphene film. The ability to simultaneous achieving these properties is a nontrivial result, providing the same level of actuation as with expensive noble metal electrodes. Actuators that additionally require greater lifetime resource should be obtained in other ways. Among them are using the graphdiyne electrodes and laser processing of the graphene electrodes.

show abstract

Section: Actuators With Graphene Electrodesmentioning

confidence: 99%

Section: Actuators With Graphene Electrodesmentioning

confidence: 99%

Section: Actuators With Graphene Electrodesmentioning

confidence: 99%

“…The manufacturing technology of the RGO/Ag hybrid electrode and actuator as a whole was described by us in [ 32 , 34 ].…”

Section: Actuators With Graphene Electrodesmentioning

confidence: 99%

Section: Actuators With Graphene Electrodesmentioning

confidence: 99%