Synthesis and electrochemical characterization of electroactive IoNanofluids with high dielectric constants from hydrated ferrous sulphate

Joseph, Aswathy; Xavier, Marylin Mary; Fal, Jacek; Żyła, Gaweł; Sasi, Soorya; Nair, P.M.; Padmanabhan, A. S.; Mathew, Suresh

doi:10.1039/c8cc08243j

Cited by 10 publications

(5 citation statements)

References 27 publications

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“…Furthermore, other groups are also contributing to the development of this field, working both with polyoxometalate clusters [26] or oxides (Fe 2 O 3 ) [27] and exploring new media such as ionic liquids as base fluid for electroactive nanofluids [27].…”

Section: Discussionmentioning

confidence: 99%

From Thermal to Electroactive Graphene Nanofluids

et al. 2019

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Here, we describe selected work on the development and study of nanofluids based on graphene and reduced graphene oxide both in aqueous and organic electrolytes. A thorough study of thermal properties of graphene in amide organic solvents (N,N-dimethylformamide, N,N-dimethylacetamide, and N-methyl-2-pyrrolidone) showed a substantial increase of thermal conductivity and specific heat upon graphene integration in those solvents. In addition to these thermal studies, our group has also pioneered a distinct line of work on electroactive nanofluids for energy storage. In this case, reduced graphene oxide (rGO) nanofluids in aqueous electrolytes were studied and characterized by cyclic voltammetry and charge-discharge cycles (i.e., in new flow cells). In addition, hybrid configurations (both hybrid nanofluid materials and hybrid cells combining faradaic and capacitive activities) were studied and are summarized here.

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Section: Discussionmentioning

confidence: 99%

From Thermal to Electroactive Graphene Nanofluids

et al. 2019

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“…Finally, comparing the experimental results obtained by the researchers with the theoretical models for density and thermal conductivity demonstrated the models' capability to reliably predict physical properties. On the other hand, authors Joseph et al [73] evaluated the redox characteristics of an iron oxide ionanofluid prepared from FeSO 4 •7H 2 O and 1-butyl-4-methylpyridinium chloride. The authors explained that the contact of the ionic liquids with the surface of the iron oxide nanoparticles enhanced the efficiency of the redox charge transfer.…”

Section: Ionanofluidsmentioning

confidence: 99%

Nanofluids and Ionic Fluids as Liquid Electrodes: An Overview on Their Properties and Potential Applications

Pereira,

Souza,

Moita

et al. 2023

Processes

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The current review work focuses on recent developments in the exploration of electroactive nanofluids, ionanofluids, and ionic liquids acting as liquid electrodes. The nanofluids used for this purpose are composed of organic or aqueous electrolytes as base fluids with the addition of nanoparticles in pure, oxidized, or hybrid forms. On the other hand, the ionic liquids are formed by adding a solution, which can be an acid, a base, or a salt, in water. The electrochemical properties, such as electrical conductivity and capacitance, of these innovative fluids are discussed thoroughly, along with their influencing factors, such as the nature and concentration of the included nanoparticles, the type of base fluids, and the operating temperature. Moreover, this overview summarizes the fundamental applications of electroactive nanofluids, ionanofluids, and ionic liquids in various possible flow-cell configurations and electrolysis methods, along with the associated feasibility factors. Additionally, this survey of scientific papers on the matter enabled the listing and evaluation of general aspects related to the usage of electroactive nanofluids, ionanofluids, and ionic liquids. Finally, it addresses the main problems associated with such types of fluids and outlines the primary prospects for further research and utilization of electroactive nanofluids, ionanofluids, and ionic liquids in diverse scientific and technological fields.

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“…Ionic liquids, due to their outstanding advantages [64,65], have great potential due to the fact that they are non-volatile and non-flammable, which translates into increased safety of battery operation [66]. Research points out that ionic liquid-based nanofluids are potential candidates for implementation in RFBs and would be beneficial due to high thermal and electrochemical stability, relatively low viscosity, and relevant charge-discharge efficiency [67]. The implementation of ionic liquids is expanding, i.e., it can be carried out at the battery element, such as in membrane.…”

Section: Ionic Liquid-based Nanofluidsmentioning

confidence: 99%

“…The future prospects of aqueous ionanofluids with electroactive nanoparticles cannot be ruled out, since the presence of ionic liquids offers added advantages. We have previously reported the synthesis and electrochemical characterization of iron oxide-based ionanofluid from ferrous sulphate [67]. This ionanofluid was prepared using 1-butyl-4-methylpyridinium chloride and showed high dielectric constant, high aqueous stability, and low viscosity.…”

Section: Ionic Liquid-based Nanofluidsmentioning

confidence: 99%

Ionic Liquid and Ionanofluid-Based Redox Flow Batteries—A Mini Review

Joseph¹,

Sobczak

Żyła

et al. 2022

Energies

Self Cite

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Stationary energy storage methods such as flow batteries are one of the best options to integrate with smart power grids. Though electrochemical energy storage using flow battery technologies has been successfully demonstrated since the 1970s, the introduction of ionic liquids into the field of energy storage introduces new dimensions in this field. This reliable energy storage technology can provide significantly more flexibility when incorporated with the synergic effects of ionic liquids. This mini-review enumerates the present trends in redox flow battery designs and the use of ionic liquids as electrolytes, membranes, redox couples, etc. explored in these designs. This review specifically intends to provide an overview of the research prospects of ionic liquids for redox flow batteries (RFB).

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Synthesis and electrochemical characterization of electroactive IoNanofluids with high dielectric constants from hydrated ferrous sulphate

Abstract: An iron oxide based-electroactive IoNanofluid with a high dielectric constant, high stability and low viscosity was synthesized from ferrous sulphate heptahydrate via a facile microwave assisted one-step route in 1-butyl-4-methylpyridinium chloride.

Cited by 10 publications

References 27 publications

From Thermal to Electroactive Graphene Nanofluids

From Thermal to Electroactive Graphene Nanofluids

Nanofluids and Ionic Fluids as Liquid Electrodes: An Overview on Their Properties and Potential Applications

Ionic Liquid and Ionanofluid-Based Redox Flow Batteries—A Mini Review

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