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Journal articles on the topic "Deep eutectic solvent electrolyte":
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Yigit, Ekrem Akif, and Yahya Erkan Akansu. "Investigation of Deep Eutectic Solvent Based Super Dielectric Electrolytes for Supercapacitors." Energy Environment and Storage 3, no. 3 (September 30, 2023): 119–25. http://dx.doi.org/10.52924/mskh9311.
This study investigates a new type of electrolyte based on deep eutectic solvents. Choline chloride based deep eutectic solvents were prepared and they were used as base ionic solvents for super dielectric theory. Deep eutectic solvent was mixed with a non-conducting material such as fumed silica, alumina. The mixture shows a super dielectric behavior which is used as electrolyte for electrochemical double layer capacitors also known as supercapacitors. The supercapacitor cells were composed of an electrode, a paper-based separator and this super dielectric electrolyte. The electrode of commercial standard supercapacitor is used first as an electrode. Second an electrode slurry was prepared in order to make custom electrode. Then the performance of both cells was investigated. The specific capacitances of cells were measured and the amount of increase at the capacitances was evaluated. The results showed that up to 14-fold increase of the specific capacitances of the commercial supercapacitor have been achieved. Also, up to 12-fold increase of the specific capacitances of our custom-made cells have been achieved. The charge-discharge characteristics and ESR values of the cells confirms that the cells show outperforming properties. Deep eutectic solvents based super dielectric electrolytes are very promising electrolytes for high energy density supercapacitors.
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Protsenko, Vyacheslav, Lina Bobrova, and Felix Danilov. "Trivalent chromium electrodeposition using a deep eutectic solvent." Anti-Corrosion Methods and Materials 65, no. 5 (September 3, 2018): 499–505. http://dx.doi.org/10.1108/acmm-05-2018-1946.
Purpose This paper aims to investigate the electrolytic deposition of corrosion-resistant chromium coatings from a trivalent chromium plating bath based on deep eutectic solvent, a new generation of room temperature ionic liquids. Design/methodology/approach The electrolyte contained chromium (III) chloride, choline chloride and the additive of extra water. The surface morphology was estimated by means of SEM technique. The microstructure of as-deposited and annealed coatings was studied using X-ray diffraction method. The kinetics of the chromium electrodeposition and the corrosion electrochemical behavior of the coatings were investigated by cyclic voltammetry technique. Findings Chromium coatings with an amorphous type of microstructure are electroplated from this bath. Some carbon and oxygen are included in deposits obtained. The step-wise mechanism of the electrochemical reduction of Cr(III) ions to Cr(0) is detected. The current efficiency in this system sufficiently exceeds that typical of usual aqueous electrolytes. The coatings fabricated using plating bath based on deep eutectic solvent showed enhanced corrosion resistance in an acidic medium: there is no current peak of active dissolution in polarization curve and the corrosion potential shifts to more positive values as compared with “usual” chromium. Originality/value The electrodeposition of chromium coatings from an environmentally acceptable trivalent chromium electrolyte, a deep eutectic solvent containing chloride choline and extra water additive has been investigated for the first time.
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Nguyen, Thuy-Duy Thi, Phuong Tuyet Nguyen, and Phuong Hoang Tran. "Dye-sensitized solar cells using deep eutectic solvents mixed with ethanol as an effective electrolyte medium." Science and Technology Development Journal 21, no. 1 (June 8, 2018): 15–23. http://dx.doi.org/10.32508/stdj.v21i1.424.
This research aims to develop a new type of electrolyte for dye-sensitized solar cells (DSCs) which can be produced in cost-effective and large scale. DSCs using deep eutectic solvents (DESs) mixed with ethanol (50% w/w DES content), as an electrolyte medium, was studied herein for the first time. Ten types of DESs were synthesized and three among them were potential candidates for DSC electrolytes. Compared to toxic and volatile organic solvents, this mixed solvent is more eco-friendly and inexpensive. According to J-V curve measurements, DSCs that used DES-ethanol medium showed promising photovoltaic performance.
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Emanuele, Elisa, Andrea Li Li Bassi, Andrea Macrelli, Claudio Mele, Jacopo Strada, and Benedetto Bozzini. "Zinc Electrode Cycling in Deep Eutectic Solvent Electrolytes: An Electrochemical Study." Molecules 28, no. 3 (January 18, 2023): 957. http://dx.doi.org/10.3390/molecules28030957.
Among post-lithium ion battery technologies, rechargeable chemistries with Zn anodes bear notable technological promise owing to their high theoretical energy density, lower manufacturing cost, availability of raw materials and inherent safety. However, Zn anodes, when employed in aqueous electrolytes, suffer from hydrogen evolution, passivation, and shape changes. Alternative electrolytes can help tackle these issues, preserving the green and safe characteristics of aqueous-based ones. Deep eutectic solvents (DESs) are promising green and low-cost non-aqueous solvents for battery electrolytes. Specifically, the cycling of Zn anodes in DESs is expected to be reversible, chiefly owing to their dendrite-suppression capability. Nevertheless, apart from a few studies on Zn plating, insight into the cathodic–anodic electrochemistry of Zn in DESs is still very limited. In view of developing DES-based battery electrolytes, it is crucial to consider that a potential drawback might be their low ionic conductivity. Water molecules can be added to the eutectic mixtures by up to 40% to increase the diffusion coefficient of the electroactive species and lower the electrolyte viscosity without destroying the eutectic nature. In this study, we address the electrochemistry of Zn in two different hydrated DESs (ChU and ChEG with ~30% H2O). Fundamental electrokinetic and electrocrystallization studies based on cyclic voltammetry and chronoamperometry at different cathodic substrates are completed with a galvanostatic cycling test of Zn|Zn symmetric CR2032 coin cells, SEM imaging of electrodes and in situ SERS spectroscopy. This investigation concludes with the proposal of a specific DES/H2O/ZnSO4-based electrolyte that exhibits optimal functional performance, rationalized on the basis of fundamental electrochemical data, morphology evaluation and modeling of the cycling response.
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Wahyusi, Kindriari Nurma, Ika Nawang Puspitawati, and Abdul Rachman Wirayudha. "The Deep Eutectic Solvent in Used Batteries as an Electrolyte Additive for Potential Chitosan Solid Electrolyte Membrane." ASEAN Journal of Chemical Engineering 23, no. 2 (August 30, 2023): 167. http://dx.doi.org/10.22146/ajche.77318.
The electrolyte or ion conductor acts as a bridge to transfer the ions the electrodes generate. In general, electrolytes are in the form of liquids. However, liquid electrolytes have drawbacks, including needing to be more practical and leaking quickly. Therefore, people switch to solid matrix electrolytes as battery electrolytes. An ideal solid electrolyte membrane must have chemical stability, thermal stability, high ionic conductivity, high flexibility, low cost, and abundant material availability. Lithium extraction from used batteries using Deep Eutectic Solvent (DES) was found to be an intelligent solvent. Mixing the method with lithium salt on a chitosan membrane can increase conductivity. This study aims to determine the lowest resistance value and highest conductivity of solid polymer electrolytes using Li2CO3 from used batteries. After separating the Lithium-Cobalt component from the used battery, it was extracted with deep DES solvent and precipitated using Na2CO3 to produce the Li2CO3 compound. Polymer electrolyte was synthesized by mixing polyvinyl alcohol and adding 0.2 grams, 0.4 grams, 0.6 grams, 0.8 grams, and 1 gram of chitosan. Li2CO3 variables are 0.2 grams, 0.4 grams, 0.6 grams, 0.8 grams, and 1 gram. The results showed that the higher content of chitosan and Li2CO3 led to an increase in ionic conductivity. These results concluded that the best solid electrolyte membrane was obtained with a variation ratio of 0.2 grams of chitosan with the addition of 1 gram of Li2CO3.
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PROTSENKO, Vyacheslav, Larysa PAVLENKO, Olexandr SUKHATSKYI, Tetyana BUTYRINA, and Felix DANILOV. "ELECTRODEPOSITION OF NANOCRYSTALLINE NICKEL-IRON ALLOY FROM AN ELECTROLYTE BASED ON A NEW TYPE OF IONIC LIQUIDS – DEEP EUTECTIC SOLVENT." Proceedings of the Shevchenko Scientific Society. Series Сhemical Sciences 2022, no. 70 (September 30, 2022): 119–27. http://dx.doi.org/10.37827/ntsh.chem.2022.70.119.
The paper reports the main features of electrochemical deposition of nickel-iron alloy from electrolyte based on the eutectic mixture of choline chloride and ethylene glycol, which is a typical representative of a new type of ionic liquids, deep eutectic solvents (DES). It is found that the iron content in the deposited alloy increases with both increasing the applied cathode current density and increasing the concentration of iron ions in the electrolyte and the introduction of water additives. Thus, variation in the current density and the concentration of water additive in electrolytes based on DES is the factor of influence on the kinetics of partial electrode reactions, and hence on the composition and properties of the coating. It is shown that it is possible to deposit uniform coatings with iron content up to 10–13% from the investigated electrolyte containing water additive (up to 10 wt.%) at the deposition current density not exceeding 1–1.2 A/dm2. The current efficiency of the alloy deposition is close to the theoretical value (97–99%), i.e. the electrodeposition is practically not complicated by electrochemical processes involving components of a deep eutectic solvent. The surface of pure nickel deposited from an electrolyte based on DES without additional water is quite uniform with a small number of defects, pitting and small pores, while coatings deposited from the electrolyte containing water additives are characterized by granular surface morphology with many asymmetric spheroidal crystallites. The electrodeposition of a nickel-iron alloy yields the surface built of irregular spheroids that overlap and form a scaly-like type of surface morphology. Nickel-iron electrolytic coatings containing up to ~7% Fe, formed from the ethaline-based electrolyte, are nanocrystalline solutions of iron in nickel with a face-centered cubic nickel lattice and an average nanocrystallite size of about 6–15 nm. Nickel-iron alloy coatings electrochemically deposited under the conditions established in this work may be considered as promising electrode materials for the creation of new cheap and highly efficient electrocatalysts for water electrolysis in hydrogen energy.
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Gurkan, Burcu, Raziyeh Ghahremani, William Dean, Nicholas Scott Sinclair, Robert F. Savinell, and Jesse S. Wainright. "(Invited) Concentrated Hydrogen Bonded Electrolytes with Ferrocene and Viologen for Redox Flow Batteries." ECS Meeting Abstracts MA2022-02, no. 46 (October 9, 2022): 1699. http://dx.doi.org/10.1149/ma2022-02461699mtgabs.
We developed concentrated hydrogen bonded electrolytes (CoHBEs) derived from a mixture of choline chloride (ChCl) and ethylene glycol (EG) containing ferrocene and viologen redox species for redox flow batteries. CoHBEs are similar to deep eutectic solvents (DESs) in terms of having distinct physical properties including wide electrochemical window, and low volatility. However, CoHBEs do not necessarily meet the requirement of “deep eutectic temperature” at a specific composition of the parent compounds that form the DES. CoHBEs formed with viologen and ferrocene species in ChCl:EG demonstrate reversible redox reactions. More importantly, 0.5 M of a viologen derivative coupled with 1 M of a ferrocene derivative was achieved owing to the good solvent strength of ChCl:EG at 1:4 and 1:6 compositions. The resulting electrolyte presents about 2M equivalent concentration of the redox couple since the viologen derivative is able to undergo two successive electron transfer. A theoretical cell voltage of 1.35V is possible with this electrolyte. This presentation will discuss the electrochemical and transport properties of this electrolyte system, and their applicability in redox flow batteries as studied by spectro-electrochemical and flow cell experiments.
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Vieira, Luciana, Robert Schennach, and Bernhard Gollas. "In situ PM-IRRAS of a glassy carbon electrode/deep eutectic solvent interface." Physical Chemistry Chemical Physics 17, no. 19 (2015): 12870–80. http://dx.doi.org/10.1039/c5cp00070j.
Huynh, Tuyên Thi Kim, Thai Thị A. Đinh, Phuong Hoang Tran, Thanh Duy VO, Man Van Tran, and Phung My Loan Le. "Physical and electrochemical properties of DES solvents based on 2,2,2-trifluorocetamide and LiTFSI salt for Li-ion batteries." Science and Technology Development Journal - Natural Sciences 4, no. 2 (May 6, 2020): First. http://dx.doi.org/10.32508/stdjns.v4i2.872.
The liquid electrolyte transports lithium ions from anode to cathode during charging, and vice versa. The choice of electrolyte is also important since high ionic conductivity between electrodes is essential for high-performance batteries. Liquid electrolytes with lithium salt dissolved in an organic solvent have been widely used since the 1970s when lithium primary batteries were first developed. Most lithium secondary batteries available today use organic electrolytes. Ionic liquids consist of organic cations and inorganic anions, due to the absence of a combustible and flammable organic solvent, they are known to produce safer batteries. Furthermore, they have a high polarity that allows dissolution of inorganic and organic metal compounds, and they can exist in a liquid state over a wide temperature range. Another type of solvent with similar physical properties and phase behavior to ILs is deep eutectic solvents (DESs) about which the first paper was recently published in 2001. These solvents are mixtures that have a much lower melting point than that of any of their individual components, mainly due to the charge delocalization occurring through hydrogen bonds between them. DESs are generally favored over ILs because they are cheaper and easier to prepare with high purity. In this work, Deep Eutectic Solvents (DESs) were prepared by simple mixing Lithium bis[(trifluoromethane)sulfonyl] imide (LiTFSI) salt and 2,2,2-trifluoroacetamide TFA at various ratios ranging from 1:1.5 to 1:4, respectively. The formation of DESs was characterized by Infrared Spectroscopy (IR) and Thermogravimetric analysis (TGA). Their physical and electrochemical properties were also evaluated based on their viscosity, conductivity, and oxidation stability window. Amongst our systems of interest, DES with LiTFSI: FAc ratio of 1:4 is the most promising as the electrolyte for Li-ion batteries, because it exhibited the lowest viscosity (42.2 mPa.s), the highest ionic conductivity (1.53 mS.cm-1 at 30oC) and relatively good anodic stability (5.2 V vs. Li+/Li).
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Lu, Ping, Peizhuo Sun, Qiang Ma, Huaneng Su, Puiki Leung, Weiwei Yang, and Qian Xu. "Rationally Designed Ternary Deep Eutectic Solvent Enabling Higher Performance for Non-Aqueous Redox Flow Batteries." Processes 10, no. 4 (March 26, 2022): 649. http://dx.doi.org/10.3390/pr10040649.
Redox flow batteries hold promise as large-scale energy storage systems for off-grid electrification. The electrolyte is one of the key components of redox batteries. Inspired by the mechanism involved in solvents for extraction, a ternary deep eutectic solvent (DES) is demonstrated, in which glycerol is introduced into the original binary ethaline DES. Redox pairs (active substance) dissolved in the solvent have low charge transfer resistance. The results show that the viscosity of the solvent with the ratio of choline chloride to ethylene glycol to glycerol of 1:2:0.5 decreases from 51.2 mPa·s to 40.3 mPa·s after adding the redox pair, implying that the mass transfer resistance of redox pairs in this solvent is reduced. Subsequent cyclic voltammetry and impedance tests show that the electrochemical performance with the ternary DES as the electrolyte in redox flow batteries is improved. When the ratio of 1:2:0.5 ternary DES is used as the electrolyte, the power density of the battery (9.01 mW·cm−2) is 38.2% higher than that of the binary one (6.52 mW·cm−2). Fourier transform infrared spectroscopy further indicates that the introduction of glycerol breaks the hydrogen bond network of the solvent environment where the redox pair is located, unraveling the hydrogen bond supramolecular complex. Rational solvent design is an effective strategy to enhance the electrochemical performance of redox batteries.
Dissertations / Theses on the topic "Deep eutectic solvent electrolyte":
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Klein, Jeffrey M. "Electrode-Electrolyte and Solvent-Solute Interfaces of Concentrated Electrolytes: Ionic Liquids and Deep Eutectic Solvents." Case Western Reserve University School of Graduate Studies / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=case1620213066452923.
Higashino, Shota. "Electrodeposition of reactive metals and alloys from non-aqueous electrolytes and their applications." Kyoto University, 2020. http://hdl.handle.net/2433/259066.
Boisset, Aurelien. "Electrolytes pour supercondensateurs asymétriques à base de MnO2." Thesis, Tours, 2014. http://www.theses.fr/2014TOUR4038/document.
Cette thèse a pour but de caractériser le fonctionnement de supercondensateurs asymétriques composés de dioxyde de manganèse de structure birnessite et de carbone activé dans différents électrolytes. Les électrolytes aqueux neutres à base de sels inorganiques montrent les meilleures performances électrochimiques. La nature et la structure des cations et des anions du sel semblent impacter les performances électrochimiques et la stabilité de la structure du matériau d’oxyde de manganèse. Lors de cyclage en milieu aqueux avec de large de fenêtre de tension de fonctionnement appliquée, un mécanisme de dégradation du dispositif a été avancé tenant compte de la nature des anions ou des cations des sels utilisés. Quelques voies de modification du matériau MnO2, afin d’améliorer ces performances électrochimiques, ont été étudiés. Des électrolytes non aqueux originaux ont été également caractérisés et plus particulièrement, les solvants « Deep Eutectic » à base de N-méthylacétamide et de sels de Lithium. Ces derniers semblent prometteurs comme électrolytes pour des applications en température sur carbone activé ou matériaux d’insertion tels que le ferrophosphate de lithium. Cependant ils semblent non adaptés aux oxydes de manganèse, mais donnent de bons résultats en cyclage avec le carbone activé The aim of this thesis was to investigate the performances of asymmetric supercapacitors based on manganese dioxide (birnessite) and activated carbon electrode materials using various electrolytes. From this work, it appears that neutral aqueous electrolytes containing inorganic salts have the best electrochemical performances. Furthermore, the nature and the structure of both ions (cations and anions) in solution seem to impact strongly the electrochemical performances of the supercapacitors, as well as, the MnO2’s structure stability and affinity. In the case of aqueous-based electrolyte, a device degradation mechanism has been proposed as a function of salt ions structure and nature to further understand the supercapacitor’s life-cycling when a large potential window is applied. Some novel synthesis ways and/or modifications were investigated to further improve the electrochemical properties of MnO2 material. Additionaly, original non-aqueous electrolytes has been also formulated and then characterized, particularly the ‘Deep Eutectic’ Solvents, based on the N-methylacetamide mixed with a lithium salt. However, these electrolytes don’t have a good affinity with manganese oxide-based materials. Interestingly, these Deep Eutectic Solvents show good cycling results with activated carbon. In fact, these electrolytes seem to be promising for high temperature energy storage applications, especially using activated carbon or insertion electrode material like the lithium ferrophosphate
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Beliaeva, Kristina. "Captage et conversion électrochimique du CO2 dans des liquides ioniques et des solvants eutectiques profonds avec des catalyseurs à base de Pd." Electronic Thesis or Diss., Université Grenoble Alpes, 2023. http://www.theses.fr/2023GRALI094.
Le captage et la réduction électrochimique du CO2 (CCU) est une solution pour décarboniser le secteur industriel. Cette technologie valorise la source de carbone peu chère en molécules carbonées à forte valeur ajoutée. Des nombreuses méthodes de valorisation du CO2 existent pour limiter la libération de ce gaz à effet de serre dans l’atmosphère. Pendant cette thèse, nous proposons le captage du CO2 complété par la conversion électrochimique en différentes molécules carbonées dans une cellule électrochimique. L’électroconversion de dioxyde de carbone est une méthode prometteuse grâce à des conditions réactionnelles douces en température et pression et la possibilité d’alimenter la cellule électrochimique avec de l’électricité produite par des énergies renouvelables. Ce procédé nécessite le développement de solvants de captage qui peuvent également jouer le rôle d’électrolyte pendant la réduction électrochimique du CO2. En même temps, le choix d’un matériau catalytique est indispensable pour la conversion sélective du CO2 en molécule(s) d’intérêt. Le choix du solvant de captage est souvent basé sur la capacité d’absorption du CO2, les stabilités chimique et électrochimique, les enjeux environnementaux et le coût. Les solvants eutectiques profonds (DESs) apparaissent comme des candidats très intéressants puisqu’ils répondent aux différents critères de sélection. Dans ce travail de thèse, nous focalisons sur le développement de ces nouveaux solvants émergents pour le captage et l’électroconversion du CO2 avec des catalyseurs à base de palladium. Le palladium est d’ailleurs connu pour être un électrocatalyseur effectif pour la transformation sélective du dioxyde de carbone en molécules type C1 tel que le monoxyde de carbone.Pendant cette thèse, nous avons synthétisé et testé électrochimiquement des nombreux DESs et des catalyseurs à base de palladium en vue de permettre la compréhension des mécanismes réactionnels de la réduction du CO2 en molécule de type C1. Les différentes techniques de caractérisation ont permis d’étudier les structures des matériaux catalytiques (morphologie et tailles des particules) et des solvants eutectiques profonds, d’analyser les produits et les intermédiaires réactionnels ainsi que de comprendre les verrous du système utilisé. Dans sa globalité, le projet a permis de faire un pas vers la séquestration et la valorisation du dioxyde de carbone par la méthode électrochimique pour décarboniser le secteur industriel et empêcher ainsi le dérèglement climatique Carbon dioxide capture and utilization (CCU) is a way to decarbonize industrial sector. This technology provides a valorization of cheap carbon feedstock by its transformation to carbonaceous value-added chemicals. Multiple CO2 capture and utilization techniques exist to prevent the release of the greenhouse gas to the atmosphere. Here, we propose an integrated process of CO2 capture sequenced by electroconversion to C-based products in electrochemical cell. Electrochemical CO2 conversion is a promising method due to mild reaction conditions and possibility to power the reaction with electricity produced by renewable energy sources. This process necessitates the development of solvents capable to capture CO2 and to play a role of electrolyte during electrochemical reduction reaction. At the same time, efficient catalytic materials are vital for selective CO2 conversion to targeted product(s). The choice of capture solvent is usually based on CO2 capture ability, chemical and electrochemical stabilities, environmental issue and cost. Economically affordable deep eutectic solvent (DES) electrolytes seem to be promising candidates for CO2 capture and electroreduction because of good thermal and electrochemical stabilities, competitive CO2 uptake and large electrochemical windows. In this work, we focused on the development of novel deep eutectic solvent electrolytes for CO2 electroreduction with Pd-based electrocatalysts. Palladium proved its efficiency for selective conversion of carbon dioxide to C1 molecules such as carbon monoxide.During the thesis, we synthesized and electrochemically tested multiple DESs and Pd-based electrocatalysts with different morphologies and particle sizes to get more insights into reaction mechanism of CO2 electroreduction to C1 molecules. The implementation of different characterization techniques helped to study catalytic materials and DESs structures, to analyze gaseous and liquid reaction intermediates and products, and to understand main challenges of the studied system. Overall, this study is a one step forward the application of CO2ER (carbon dioxide electrochemical reduction) for valorisation of carbon dioxide and climate change mitigation
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Al-Murshedi, Azhar Yaseen Muhi. "Deep eutectic solvent-water mixtures." Thesis, University of Leicester, 2018. http://hdl.handle.net/2381/42799.
Salt forms homogeneous solutions with water; most studies to date have assumed that deep eutectic solvents (DES) and water form similar homogeneous systems. Several studies have used quantum mechanical and molecular dynamic simulations to prove that this is indeed the case. Study of physical properties of ionic liquid-water/ systems have revealed some anomalous observations without considering the fact that there may be micro- or nano-heterogeneities with in these systems. The key aim of this project is to demonstrate the heterogeneity of DES-water mixtures by careful measurement of physical properties such as viscosity, conductivity, surface tension and density. The first stage of the study involved the investigation of the above physical properties for pure DESs and DESs mixed with different amounts water to investigate if these were homogeneous or heterogeneous in nature. Analysis of these data showed some characteristics of heterogeneity, the extent of which depends on the number of hydrogen bond donors in the pure DES. Dynamic light scattering was used to determine the extent of the heterogeneity in the three DESs under investigation, namely Ethaline, Glyceline and Reline. Pulsed Field Gradient NMR (PFG-NMR) and electrochemical techniques have been used to study diffusion coefficients in DES-water mixtures. The results of PFG-NMR showed that the behaviour of DES-water mixtures was non-Stokesian, hence DES-water mixtures have water-dominant and some ion-dominant domains. Electrochemical studies also showed the same trends due to the electroactive species partitioning between the different phases. It is thought that Reline-water mixtures are more heterogeneous than the corresponding Ethaline and Glyceline systems. Electroplating in DES-water mixtures has previously been shown to improve the quality of deposited films. The electrodeposition of copper from Ethaline was studied as a function of water content. It was found that water affected the speciation of copper in solution.
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Bryant, Saffron Jade. "Compartmentalisation and Membrane Activity in Protic Ionic Liquids and Deep Eutectic Solvents." Thesis, The University of Sydney, 2016. http://hdl.handle.net/2123/16654.
Ionic liquids and deep eutectic solvents are areas of great interest to non-aqueous reaction systems. They can be fine-tuned for an array of properties and are often less harmful than other, organic, solvents. This research focused specifically on self-assembly in ionic liquids and deep eutectic solvents with an eye to understand self-assembly processes. Not only does this work offer industrial applications, for isolated reaction systems and batteries, it also provides an interesting insight into the possibility of non-aqueous life-forms. If compartmentalisation can occur without water, then perhaps so too can the other requirements of life. Ionic liquid nanostructure significantly affected phospholipid self-assembly with more nanostructure resulting in more curved micellar phases, rather than the lamellar phases observed in water and less structured ILs. This held true for both zwitterionic lipids and ionic surfactants, demonstrated by microscopy, small angle neutron and x-ray scattering. Phospholipids formed swellable lamellar phases in all fourteen of the deep eutectic solvents tested. Examination of lipid transition temperatures by polarising optical microscopy demonstrated that the components of the solvent could influence lipid behaviour and stability, solvents with long alkyl components acted as cosurfactants. Tethered lipid membranes and electrical impedance spectroscopy demonstrated that membranes could exist, and form, in a pure IL environment (ethanolammonium formate). This is the first time such a technique has been used to study membranes in an IL and offers unparalleled opportunities for further research. Furthermore, this technique was used to demonstrate the continued function of a membrane transporter, valinomycin, in ethanolammonium formate. Valinomycin continued to transport potassium with an extremely high selectivity over sodium. These results show that compartmentalisation, and even protein function, can continue even in the absence of water.
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Lo, Yi-Ting. "Synthesis and Characterization of Deep Eutectic Solvents (DES) with Multifunctional Building Blocks." University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1559598953036721.
Fullarton, Claire. "Working towards a new sustainable rechargeable battery : zinc, conducting polymer and deep eutectic solvent system." Thesis, University of Leicester, 2015. http://hdl.handle.net/2381/31863.
Electronically conducting polymers based on functionalised thiophenes and pyrroles have continued to stimulate academic interest as well as starting to be employed in practical applications and uses. This thesis describes studies of the electronic properties of mixed thiophene-pyrrole polymers (based on custom synthesised mixed monomer precursors) and polymers electrodeposited from commercially available monomers, pyrrole and 3,4-ethylenedioxythiophene, in respect to energy storage applications including batteries and ion selective membranes. In such applications the movement of ion and solvent through the polymer film during oxidation and reduction cycles is critical to application and function, e.g. charging rate, metal ion permeability or adhesion stability. Recently the unexpected behaviour of polypyrrole in choline chloride based ionic liquids has been described. These liquids are especially attractive because of their unique solubility profiles, high stability, low volatility and low toxicity. This thesis describes the electrochemical characterisation, DC capacitance behaviour and ion/solvent transport properties of conducting polymers using a range of electrochemical methodologies in combination with acoustic impedance electrochemical quartz crystal microbalance techniques (EQCM) and X-Ray Photo-electron Spectroscopy (XPS). The behaviour of several mixed thiophene-pyrrole films, polypyrrole and poly 3,4-ethylenedioxythiophene in different electrolyte media; deep eutectic solvents (DESs), conventional organic solvents and aqueous media are contrasted in this thesis. PEDOT and one of the mixed thiophene-pyrrole polymers (poly 2-(thiophene-2-yl)-1H pyrrole) gave the highest DC capacitances of the polymers investigated, with high values observed in both choline chloride based (Type III) and zinc based (Type IV) DESs. The ion dynamics of the polymers p-doping in the DESs, observed to fit gravimetric data recorded, was able to show a marked difference in the ion transfers between DES types and a conventional organic solvent, acetonitrile. Both polymers in acetonitrile and the zinc based DES (ZnCl2 / EG) satisfied the electro-neutrality condition through dominance of anion transfers. Whereas, polymers in the choline chloride based DES (Ethaline) satisfied the electro-neutrality condition through dominance of choline cation transfers (in the opposite direction to anion transfers). This research involved work towards the development of a new class of rechargeable batteries based on a Zinc-Polymer system incorporating a novel, inexpensive, environmentally sustainable solvent. This work is necessitated by the problems associated with petrol and diesel powered vehicles and the limitations of batteries available for electric vehicles.
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Ola, Pius Dore. "Solvent extraction and liquid membrane containing ionic liquids and deep eutectic solvents for metal separation." Thesis, https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB13097323/?lang=0, 2018. https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB13097323/?lang=0.
Östlund, Erik. "Impact of Water on Recycling Lithium Ion Battery Cathode Material in a Deep Eutectic Solvent." Thesis, Uppsala universitet, Strukturkemi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-417814.
Books on the topic "Deep eutectic solvent electrolyte":
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Yuan, Du, Gen Chen, Chuankun Jia, and Haitao Zhang, eds. Deep Eutectic Solvents/Complex Salts-Based Electrolyte for Next Generation Rechargeable Batteries. Frontiers Media SA, 2021. http://dx.doi.org/10.3389/978-2-88966-376-7.
Holze, Rudolf, and M. D. Lechner. Part 2 : Deep Eutectic Solvents and Electrolyte Solutions : Subvolume B : Electrical Conductivities and Equilibria of Electrochemical Systems - Volume 9 : Electrochemistry - Group IV: Physical Chemistry - Landolt-Börnstein New Series. Springer, 2016.
Pandey, Ashok, Ashish Pandey, Bhagyashree Tiwari, and Suzana Yusup. Current Developments in Biotechnology and Bioengineering: Deep Eutectic Solvent Fund Emerging Applications. Elsevier, 2022.
Pandey, Ashok, Ashish Pandey, Bhagyashree Tiwari, and Suzana Yusup. Current Developments in Biotechnology and Bioengineering: Deep Eutectic Solvent Fund Emerging Applications. Elsevier, 2022.
Book chapters on the topic "Deep eutectic solvent electrolyte":
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Ramezani, Amir M., Yadollah Yamini, and Raheleh Ahmadi. "Deep Eutectic Solvent-Based Microextraction." In Microextraction Techniques in Analytical Toxicology, 221–37. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003128298-14.
Getie, Fentahun Adamu, Delele Worku Ayele, Nigus Gabbiye Habtu, Temesgen Atnafu Yemata, and Fantahun Aklog Yihun. "Zn(NO3)2.6H2O/Urea Composite Deep Eutectic Solvents Derived Through Facile and Green Synthesis Approach as an Electrolyte for Rechargeable Zinc Air Batteries." In Advancement of Science and Technology, 253–61. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-33610-2_14.
Mahi, Mohammed-Ridha, Mohammed-Ridha Mahi, Ilham Mokbel, Latifa Négadi, and Jacques Jose. "CO2 Capture Using Deep Eutectic Solvent and Amine (MEA) Solution." In Cutting-Edge Technology for Carbon Capture, Utilization, and Storage, 309–16. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2018. http://dx.doi.org/10.1002/9781119363804.ch21.
Panakkal, Elizabeth Jayex, Yu-Shen Cheng, Theerawut Phusantisampan, and Malinee Sriariyanun. "Deep Eutectic Solvent-Mediated Process for Productions of Sustainable Polymeric Biomaterials." In Value-Added Biocomposites, 251–87. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003137535-10.
Zakaria, Nur Zatul Iffah, Norshakilla Afendi, Ahmad Anas Nagoor Gunny, Habibollah Younesi, and Ku Syahidah Ku Ismail. "Deep Eutectic Solvent Pretreatment of Rubber Seed Shells for Cellulose and Hemicellulose Production." In Green Energy and Technology, 81–95. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1695-5_7.
Gunny, Ahmad Anas Nagoor, Nur Humairah Aminuddin, Azalina Mohamed Nasir, Raja Hasnida Raja Hashim, Mohd Faizal Ab Jalil, Mohamad Azlan Ahamad Seeni Pakir, Mohamed Mydin M. Abdul Kader, and Ateeq Rahman. "Deep Eutectic Solvent-Assisted Synthesis of Nanocrystalline Cellulose Adsorbent for Silver Nitrate Removal." In Green Energy and Technology, 339–49. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1695-5_29.
Mondor, Martin, and Alan Javier Hernández-Álvarez. "Emerging Solvent Extraction Technologies for Plant Protein Extraction: Aqueous Two-Phase Extraction; Deep Eutectic Solvent; Subcritical Water Extraction." In Green Protein Processing Technologies from Plants, 111–30. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-16968-7_5.
Yusof, Rizana, Siti Zawani Ahmad Zaini, and Mohd Azhar Azman. "Characterization of Pectin Extracted from Guava Peels Using Deep Eutectic Solvent and Citric Acid." In Charting the Sustainable Future of ASEAN in Science and Technology, 421–33. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3434-8_36.
Shahbaz, K., I. M. AlNashef, R. J. T. Lin, M. A. Hashim, F. S. Mjalli, and Mohammed Farid. "A Novel Calcium Chloride Hexahydrate-Based Deep Eutectic Solvent as a Phase Change Material." In Thermal Energy Storage with Phase Change Materials, 51–66. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9780367567699-5.
Conference papers on the topic "Deep eutectic solvent electrolyte":
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Kityk, Anna, Natalia Bannyk, and Olena Kun. "Deep Eutectic Solvent Reline − Highly Efficient Electrolyte For Stainless Steel Electropolishing." In Chemical technology and engineering. Lviv Polytechnic National University, 2019. http://dx.doi.org/10.23939/cte2019.01.153.
Owyeung, Rachel E., Mark Cronin-Golomb, Sameer R. Sonkusale, and Matthew J. Panzer. "Microrheology of gel electrolyte biomaterials based on deep eutectic solvents." In Optical Trapping and Optical Micromanipulation XVII, edited by Kishan Dholakia and Gabriel C. Spalding. SPIE, 2020. http://dx.doi.org/10.1117/12.2569849.
Boldrini, Chiara Liliana, Norberto Manfredi, Filippo Maria Perna, Vito Capriati, and Alessandro Abbotto. "Introducing eco-friendly hydrophilic and hydrophobic deep eutectic solvent electrolyte solutions for dye-sensitized solar cells." In 13th Conference on Hybrid and Organic Photovoltaics. València: Fundació Scito, 2021. http://dx.doi.org/10.29363/nanoge.hopv.2021.055.
Makhota, Dmytro, Olexandr Sukhatskyi, Tetyana Butyrina, and Vyacheslav Protsenko. "Application of Deep Eutectic Solvents to Prepare Electrocatalysts for Green Hydrogen Production." In International Young Scientists Conference on Materials Science and Surface Engineering. Karpenko Physico-Mechanical Institute of the NAS of Ukraine, 2023. http://dx.doi.org/10.15407/msse2023.018.
We investigated the electrochemical modification of metal surfaces by using electrolytes based on a novel type of ionic liquids known as deep eutectic solvents (DESs). The anodic treatment of the Cu–Ni alloy in DESs significantly improves its electrocatalytic properties towards the hydrogen evolution reaction (HER). Modification of the chemical composition of nickel coatings via codeposition from DES-based electrolytes containing Fe(II), Mo(VI), Ce(III), and La(III) salts leads to a significant increase in electrocatalytic activity towards the HER, which can be used in development of hydrogen energy.
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Muryanto, Muryanto, Roni Maryana, Eka Triwahyuni, Yanni Sudiyani, and Misri Gozan. "Furfural production using aqueous deep eutectic solvent." In THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIAL AND TECHNOLOGY (ICAMT) 2021. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0122673.
TULUPOVA, Anastasiia, Vasilii BURTSEV, Vaclav ŠVORČÍK, and Oleksiy LYUTAKOV. "STABLE DEEP EUTECTIC SOLVENT DOPED WITH Metal nanoparticles." In NANOCON 2021. TANGER Ltd., 2021. http://dx.doi.org/10.37904/nanocon.2021.4340.
Niawanti, Helda, Siti Zullaikah, and M. Rachimoellah. "Purification of biodiesel by choline chloride based deep eutectic solvent." In INTERNATIONAL SEMINAR ON FUNDAMENTAL AND APPLICATION OF CHEMICAL ENGINEERING 2016 (ISFAChE 2016): Proceedings of the 3rd International Seminar on Fundamental and Application of Chemical Engineering 2016. Author(s), 2017. http://dx.doi.org/10.1063/1.4982280.
Hayyan, Adeeb. "Eutectic solvent as co-solvent for oil extraction from plant seeds." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/niod6594.
In this study, oil extraction form flaxseeds using n-hexane and novel co-solvent called deep eutectic solvents (DESs). DES is relativity green solvent in comparison to ionic liquids and they are alternative to organic solvent. Different organic solvents were screened and oil extraction operating conditions were optimized. The addition of DES to n-hexane can significantly reduce extraction temperature in comparison to n-hexane alone. Application of green solvents in oil extraction field can reduce the energy consumption and operational risks associated with the use of flammable organic solvents.
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Weeraratne, S. D., I. A. G. Pieterzs, and D. S. Gunarathne. "Modeling Deep Eutectic Solvent Based Working Fluids for Vapor Absorption Cooling." In 2023 Moratuwa Engineering Research Conference (MERCon). IEEE, 2023. http://dx.doi.org/10.1109/mercon60487.2023.10355395.
Reports on the topic "Deep eutectic solvent electrolyte":
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De Silva, Sammu. Understanding the solubility of metal salts and supporting electrolytes in Deep Eutectic Solvents. Office of Scientific and Technical Information (OSTI), April 2024. http://dx.doi.org/10.2172/2335737.
