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Czerwoniec P, Kukawka R, Spychalski M, Koczura R, Mokracka J, Smiglak M. New biologically active ionic liquids with benzethonium cation-efficient SAR inducers and antimicrobial agents. PEST MANAGEMENT SCIENCE 2024; 80:3047-3055. [PMID: 38319125 DOI: 10.1002/ps.8014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/27/2024] [Accepted: 02/02/2024] [Indexed: 02/07/2024]
Abstract
BACKGROUND An urgent need to find new methods for crop protection remains open due to the withdrawal from the market of the most toxic pesticides and increasing consumer awareness. One of the alternatives that can be used in modern agriculture is the use of bifunctional compounds whose actions towards plant protection are wider than those of conventional pesticides. RESULTS In this study, we present the investigation of the biological efficacy of nine dual-functional salts containing a systemic acquired resistance (SAR)-inducing anion and the benzethonium cation. A significant result of the presented study is the discovery of the SAR induction activity of benzethonium chloride, which was previously reported only as an antimicrobial agent. Moreover, the concept of dual functionality was proven, as the application of presented compounds in a given concentrations resulted both in the control of human and plant bacteria species and induction of SAR. CONCLUSION The strategy presented in this article shows the capabilities of derivatization of common biologically active compounds into their ionic derivatives to obtain bifunctional salts. This approach may be an example of the design of potential new compounds for modern agriculture. It provides plants with two complementary actions allowing to provide efficient protection to plants, if one mode of action is ineffective. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Patrycja Czerwoniec
- Poznan Science and Technology Park, Adam Mickiewicz University Foundation, Poznań, Poland
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Poznań, Poland
| | - Rafal Kukawka
- Poznan Science and Technology Park, Adam Mickiewicz University Foundation, Poznań, Poland
| | - Maciej Spychalski
- Poznan Science and Technology Park, Adam Mickiewicz University Foundation, Poznań, Poland
| | - Ryszard Koczura
- Department of Microbiology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poznań, Poland
| | - Joanna Mokracka
- Department of Microbiology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poznań, Poland
| | - Marcin Smiglak
- Poznan Science and Technology Park, Adam Mickiewicz University Foundation, Poznań, Poland
- Innosil Sp. z o.o., Poznań, Poland
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2
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Mahtar A, Sulaimon AA, Wilfred CD. Lignosulfonate-Based Ionic Liquids as Asphaltene Dispersants. Molecules 2023; 28:molecules28083390. [PMID: 37110627 PMCID: PMC10145202 DOI: 10.3390/molecules28083390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/03/2023] [Accepted: 04/08/2023] [Indexed: 04/29/2023] Open
Abstract
Asphaltenes are recognized as being troublesome from upstream to downstream in the oil industry due to their tendency to precipitate and self-associate. Their extraction from asphaltenic crude oil for a cost-effective refining process is a crucial and critical challenge in the oil and gas sector. Lignosulfonate (LS), as a by-product of the wood pulping process in the papermaking industry, is a highly available and underutilized feedstock. This study aimed to synthesize novel LS-based ionic liquids (ILs) by reacting lignosulfonate acid sodium salt [Na]2[LS] with different alkyl chains of piperidinium chloride for asphaltene dispersion. The synthesized ILs, 1-hexyl-1-methyl-piperidinium lignosulfonate [C6C1Pip]2[LS], 1-octyl-1-methyl-piperidinium lignosulfonate [C8C1Pip]2[LS], 1-dodecyl-1-methyl-piperidinium lignosulfonate [C12C1Pip]2[LS] and 1-hexadecyl-1-methyl-piperidinium lignosulfonate [C16C1Pip]2[LS] were characterized using FTIR-ATR and 1H NMR for functional groups and structural confirmation. The ILs depicted high thermal stability because of the presence of a long side alkyl chain and piperidinium cation following thermogravimetric analysis (TGA). Asphaltene dispersion indices (%) of ILs were tested by varying contact time, temperature and ILs concentration. The obtained indices were high for all ILs, with a dispersion index of more than 91.2% [C16C1Pip]2[LS], representing the highest dispersion at 50,000 ppm. It was able to lower asphaltene particle size diameter from 51 nm to 11 nm. The kinetic data of [C16C1Pip]2[LS] were consistent with the pseudo-second-order kinetic model. The dispersion index (%), asphaltene particle growth and the kinetic model agreed with the molecular modeling studies of the HOMO-LUMO energy of IL holds.
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Affiliation(s)
- Ariff Mahtar
- Centre of Research in Ionic Liquids, Universiti Teknologi Petronas, Bandar Seri Iskandar 32610, Malaysia
| | - Aliyu Adebayo Sulaimon
- Department of Petroleum Engineering, Universiti Teknologi Petronas, Bandar Seri Iskandar 32610, Malaysia
| | - Cecilia Devi Wilfred
- Fundamental and Applied Sciences Department, Universiti Teknologi Petronas, Bandar Seri Iskandar 32610, Malaysia
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Pal B, Parameswaran AK, Wu B, Děkanovský L, Mazánek V, Sarkar KJ, Jose R, Sofer Z. Insights into the Charge Storage Mechanism of Binder-Free Electrochemical Capacitors in Ionic Liquid Electrolytes. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c03667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Affiliation(s)
- Bhupender Pal
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, 166 28 Prague 6, Czech Republic
| | | | - Bing Wu
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, 166 28 Prague 6, Czech Republic
| | - Lukáš Děkanovský
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, 166 28 Prague 6, Czech Republic
| | - Vlastimil Mazánek
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, 166 28 Prague 6, Czech Republic
| | - Kalyan Jyoti Sarkar
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, 166 28 Prague 6, Czech Republic
| | - Rajan Jose
- Center for Advanced Intelligent Materials, Faculty of Industrial Sciences & Technology, Universiti Malaysia Pahang, Kuantan 26300, Malaysia
| | - Zdeněk Sofer
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, 166 28 Prague 6, Czech Republic
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Smart K, Golden TD, Acree WE. Investigations of potential ionic liquid phases for chromatographic processes using spectroscopic and thermal techniques. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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5
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Jing X, Sun Z, Zhao D, Tang X, Lv W, Shi Y. Co-extraction of Mn2+, Co2+, and a part of Ni2+ from sulfuric acid solution containing Li+ using the new ionic liquids. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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6
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Thermal stability limits of imidazolium, piperidinium, pyridinium, and pyrrolidinium ionic liquids immobilized on metal oxides. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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7
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Piatti E, Guglielmero L, Tofani G, Mezzetta A, Guazzelli L, D'Andrea F, Roddaro S, Pomelli CS. Ionic liquids for electrochemical applications: Correlation between molecular structure and electrochemical stability window. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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8
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Lethesh KC, Bahaa A, Abdullah M, Bamgbopa MO, Susantyoko RA. Temperature-Dependent Electrochemical Stability Window of Bis(trifluoromethanesulfonyl)imide and Bis(fluorosulfonyl)imide Anion Based Ionic Liquids. Front Chem 2022; 10:859304. [PMID: 35783210 PMCID: PMC9247390 DOI: 10.3389/fchem.2022.859304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 04/26/2022] [Indexed: 12/01/2022] Open
Abstract
The electrochemical stability of 22 commercially available hydrophobic ionic liquids was measured at different temperatures (288.15, 298.15, 313.15, 333.15 and 358.15 K), to systematically investigate ionic liquids towards electrolytes for supercapacitors in harsh weather conditions. Bis(trifluoromethanesulfonyl)imide and bis(fluorosulfonyl)imide anions in combination with 1-Butyl-1-methylpyrrolidinium, 1-Ethyl-3-methylimidazolium, N-Ethyl-N, N-dimethyl-N(2methoxyethyl)ammonium, 1-Methyl-1-(2-methoxyethyl)pyrrolidinium, N-Pentyl-N-methylpyrrolidinium, N, N-Diethyl-N-methyl-N-propylammonium, N, N-Dimethyl-N-ethyl-N-benzyl ammonium, N, N-Dimethyl-N-Ethyl-N-phenylethylammonium, N-Butyl-N-methylpiperidinium, 1-Methyl-1-propylpiperidinium, N-Tributyl-N-methylammonium, N-Trimethyl-N-butylammonium, N-Trimethyl-N-butylammonium, N-Trimethyl-N-propylammonium, N-Propyl-N-methylpyrrolidinium cations were selected for the study. Linear regression with a numerical model was used in combination with voltammetry experiments to deduce the temperature sensitivity of both anodic and cathodic potential limits (defining the electrochemical stability window), in addition to extrapolating results to 283.15 and 363.15 K. We evaluated the influence of the cations, anions, and the presence of functional groups on the observed electrochemical stability window which ranged from 4.1 to 6.1 V.
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Datta R, Ramprasad R, Venkatram S. Conductivity prediction model for ionic liquids using machine learning. J Chem Phys 2022; 156:214505. [DOI: 10.1063/5.0089568] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Ionic liquids (ILs) are salts, composed of asymmetric cations and anions, typically existing as liquids at ambient temperatures. They have found widespread applications in energy storage devices, dye-sensitized solar cells, and sensors because of their high ionic conductivity and inherent thermal stability. However, measuring the conductivity of ILs by physical methods is time-consuming and expensive, whereas the use of computational screening and testing methods can be rapid and effective. In this study, we used experimentally measured and published data to construct a deep neural network capable of making rapid and accurate predictions of the conductivity of ILs. The neural network is trained on 406 unique and chemically diverse ILs. This model is one of the most chemically diverse conductivity prediction models to date and improves on previous studies that are constrained by the availability of data, the environmental conditions, or the IL base. Feature engineering techniques were employed to identify key chemo-structural characteristics that correlate positively or negatively with the ionic conductivity. These features are capable of being used as guidelines to design and synthesize new highly conductive ILs. This work shows the potential for machine-learning models to accelerate the rate of identification and testing of tailored, high-conductivity ILs.
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Affiliation(s)
- R. Datta
- The Galloway School, Atlanta, Georgia 30327, USA
| | - R. Ramprasad
- The School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - S. Venkatram
- The School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
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10
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Jing X, Sun Z, Ren J, Chen J, Pan D, Chen Y. Extraction and Separation of Co2+ from Ni2+ Using the Novel Task-Specific Ionic Liquids of [C4H9NH3][P507]. RUSS J APPL CHEM+ 2022. [DOI: 10.1134/s1070427222010189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Dicationic Bis-Pyridinium Hydrazone-Based Amphiphiles Encompassing Fluorinated Counteranions: Synthesis, Characterization, TGA-DSC, and DFT Investigations. Molecules 2022; 27:molecules27082492. [PMID: 35458695 PMCID: PMC9030580 DOI: 10.3390/molecules27082492] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/27/2022] [Accepted: 03/31/2022] [Indexed: 02/05/2023] Open
Abstract
Quaternization and metathesis approaches were used to successfully design and synthesize the targeted dicationic bis-dipyridinium hydrazones carrying long alkyl side chain extending from C8 to C18 as countercation, and attracted to halide (I-) or fluorinated ion (PF6-, BF4-, CF3COO-) as counteranion. Spectroscopic characterization using NMR and mass spectroscopy was used to establish the structures of the formed compounds. In addition, their thermal properties were investigated utilizing thermogravimetric analyses (TGA), and differential scanning calorimetry (DSC). The thermal study illustrated that regardless of the alkyl group length (Cn) or the attracted anions, the thermograms of the tested derivatives are composed of three stages. The mode of thermal decomposition demonstrates the important roles of both anion and alkyl chain length. Longer chain length results in greater van der Waals forces; meanwhile, with anions of low nucleophilicity, it could also decrease the intramolecular electrostatic interaction, which leads to an overall interaction decrease and lower thermal stability. The DFT theoretical calculations have been carried out to investigate the thermal stability in terms of the Tonset. The results revealed that the type of the counteranion and chain length had a substantial impact on thermal stability, which was presumably related to the degree of intermolecular interactions. However, the DFT results illustrated that there is no dominant parameter affecting the thermal stability, but rather a cumulative effect of many factors of different extents.
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Triolo A, Paolone A, Sarra A, Trequattrini F, Palumbo O, BattistaAppetecchi G, Lo Celso F, Chater P, Russina O. Structure and vibrational features of the protic ionic liquid 1,8-diazabicyclo[5.4.0]-undec-7-ene-8-ium bis(trifluoromethanesulfonyl)amide, [DBUH][TFSI]. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Li Q, Hu Y, Zhang B. Phosphonium-based ionic liquids as antifungal agents for conservation of heritage sandstone. RSC Adv 2022; 12:1922-1931. [PMID: 35425254 PMCID: PMC8979122 DOI: 10.1039/d1ra09169g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 01/03/2022] [Indexed: 12/13/2022] Open
Abstract
With a view to preventing fungal deterioration of historical stone artworks, we report the use of phosphonium-based ionic liquids (ILs) as potent antifungal agents against dematiaceous fungi commonly found on heritage stones. Three ILs: tributyldodecylphosphonium polyoxometalate [P44412][POM], tributyltetradecylphosphonium polyoxometalate [P44414][POM], and trihexyltetradecylphosphonium polyoxometalate [P66614][POM] were prepared and their thermal stabilities and in vitro antifungal activities were evaluated. From the ramped temperature thermogravimetric analysis and antifungal experiments it can be clearly observed that the alkyl chain length of the tetraalkylphosponium cation has a significant influence on the thermal and antifungal properties. The thermal stability and antifungal activity decreased as the number of carbon atoms of the alkyl substituents increased and, thus, followed the order [P44412][POM] > [P44414][POM] > [P66614][POM]. In addition, inoculation of four fungal species on IL-coated sandstone surfaces showed significant inhibition of fungal growth, endowing the materials with potential applications in heritage sandstone conservation.
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Affiliation(s)
- Qiang Li
- School of Art and Archaeology, Zhejiang University Hangzhou Zhejiang 310058 China
| | - Yulan Hu
- School of Art and Archaeology, Zhejiang University Hangzhou Zhejiang 310058 China
| | - Bingjian Zhang
- School of Art and Archaeology, Zhejiang University Hangzhou Zhejiang 310058 China
- Department of Chemistry, Zhejiang University Hangzhou Zhejiang 310027 China
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14
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Understanding the physicochemical and transport properties of pyrazolium based ionic liquids bearing iodide and triiodide anions. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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SABAH AA. Extractive desulfurization using piperidinium based ionic liquids with Lewis acids. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2021. [DOI: 10.18596/jotcsa.963930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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16
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Gómez E, Velho P, Domínguez Á, Macedo EA. Thermal Analysis of Binary Mixtures of Imidazolium, Pyridinium, Pyrrolidinium, and Piperidinium Ionic Liquids. Molecules 2021; 26:molecules26216383. [PMID: 34770792 PMCID: PMC8587281 DOI: 10.3390/molecules26216383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/18/2021] [Accepted: 10/19/2021] [Indexed: 11/16/2022] Open
Abstract
Ionic liquids (ILs) are being widely studied due to their unique properties, which make them potential candidates for conventional solvents. To study whether binary mixtures of pure ionic liquids provide a viable alternative to pure ionic liquids for different applications, in this work, the thermal analysis and molar heat capacities of five equimolar binary mixtures of ionic liquids based on imidazolium, pyridinium, pyrrolidinium, and piperidinium cations with dicyanamide, trifluoromethanesulfonate, and bis(trifluoromethylsulfonyl)imide anions have been performed. Furthermore, two pure ionic liquids based on piperidinium cation have been thermally characterized and the heat capacity of one of them has been measured. The determination and evaluation of both the transition temperatures and the molar heat capacities was carried out using differential scanning calorimetry (DSC). It was observed that the thermal behavior of the mixtures was completely different than the thermal behavior of the pure ionic liquids present, while the molar heat capacities of the binary mixtures were very similar to the value of the average of molar heat capacities of the two pure ionic liquids.
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Affiliation(s)
- Elena Gómez
- Associate Laboratory of Separation and Reaction Engineering–Laboratory of Catalysis and Materials (LSRE-LCM), Department of Chemical Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal; (E.G.); (P.V.)
| | - Pedro Velho
- Associate Laboratory of Separation and Reaction Engineering–Laboratory of Catalysis and Materials (LSRE-LCM), Department of Chemical Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal; (E.G.); (P.V.)
| | - Ángeles Domínguez
- Advanced Separation Processes Group, Department of Chemical Engineering, University of Vigo, Campus Lagoas-Marcosende, 36310 Vigo, Spain;
| | - Eugénia A. Macedo
- Associate Laboratory of Separation and Reaction Engineering–Laboratory of Catalysis and Materials (LSRE-LCM), Department of Chemical Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal; (E.G.); (P.V.)
- Correspondence: ; Tel.: +351-22508-1653
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Gancarz P, Zorębski E, Dzida M. Influence of experimental conditions on the electrochemical window. Case study on bis(trifluoromethylsulfonyl)imide-based ionic liquids. Electrochem commun 2021. [DOI: 10.1016/j.elecom.2021.107107] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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18
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Feder-Kubis J, Gardas RL, Geppert-Rybczyńska M. On the Influence of the Menthol Moiety on the Transport Properties of a Homologue Series of Functionalized Bis(trifluoromethylsulfonyl)imide Room-Temperature Ionic Liquids: A Quest for the Structure-Property Relationship. J Phys Chem B 2021; 125:8502-8510. [PMID: 34297553 PMCID: PMC8389901 DOI: 10.1021/acs.jpcb.1c03827] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/28/2021] [Indexed: 11/29/2022]
Abstract
This study explores the transport properties of bis(trifluoromethylsulfonyl)imide-based ionic liquids with a naturally derived (1R,2S,5R)-(-)-menthol moiety in the cationic part. In particular, we investigated the dependence of the dynamic viscosity and electrical conductivity as functions of the alkyl chain length. An important finding of this study is that both properties show nonmonotonic behavior with respect to the alkyl chain length. The nonmonotonic dependency is an obstacle for establishing the relationships between the structure and transport properties of homologues. To overcome this difficulty, we recommend fast property screening using a theoretical model that we developed, which allows for efficient viscosity prediction by means of the group contribution method. As demonstrated in this study, the model allows for reliable predictions of viscosity in the studied series with an overall relative deviation of less than 8%.
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Affiliation(s)
- Joanna Feder-Kubis
- Faculty
of Chemistry, Wrocław University of
Science and Technology, Wybrzeże Wyspiańskiego 27, Wrocław 50-370, Poland
| | - Ramesh L. Gardas
- Department
of Chemistry, Indian Institute of Technology
Madras, Chennai, Tamil Nadu 600036, India
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Vijayakumar V, Kim JH, Nam SY. Piperidinium functionalized poly(2,6 dimethyl 1,4 phenylene oxide) based polyionic liquid/ionic liquid (PIL/IL) composites for CO2 separation. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.04.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Ramajo B, Blanco D, Rivera N, Viesca J, González R, Battez AH. Long-term thermal stability of fatty acid anion-based ionic liquids. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115492] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Huang X, Xu Y, Wang Y, Li Y, Wang L, Wu Z. Are Ionic Liquids Suitable for Suppressing Coal Spontaneous Combustion? ACS OMEGA 2021; 6:6681-6690. [PMID: 33748581 PMCID: PMC7970493 DOI: 10.1021/acsomega.0c05504] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 02/03/2021] [Indexed: 06/02/2023]
Abstract
Due to the reported fact that the active functional groups in coal can be dissolved and destroyed by ionic liquids, it is expected that the spontaneous combustion of coal can be affected from a thermodynamic perspective. However, ionic liquids with different thermal stabilities have distinct influences on coal combustion. Here, the thermal stability of long-flame coal in the presence of five pure ionic liquids ([Bmim][BF4], [Bmim][Ac], [Bmim][NO3], [Hoemim][BF4], and [Pmim][BF4]) was analyzed by thermogravimetric analysis, and the flammability of the raw coal, pure ionic liquids, and coal-IL mixtures (mass ratio of 1:1) were tested using a cone calorimeter according to the indexes of the time to ignition (TTI), mass loss rate (MLR), heat release rate (HRR), total heat release rate (THR), specific extinction area (SEA), and CO production. It is shown that the TTIs of mixtures containing coal-[Bmim][BF4], coal-[Hoemim][BF4], and coal-[Pmim][BF4] are relatively long, and the MLR, HRR, THR, and SEA values are relatively low, indicating that these fluorine-containing ionic liquids have a better flame-retardant effect than the other two fluorine-free ones, which may be ascribed to their similar role to halogen inhibitors. In addition, the endothermic process of [Bmim][BF4], [Hoemim][BF4], and [Pmim][BF4] can reduce the temperature of the coal surface and delay the ignition time of coal. In contrast, the TTI of coal-[Bmim][NO3] and coal-[Bmim][Ac] mixtures is much shorter than that of coal alone, and the MLR, HRR, and THR values are larger. This may be caused by the poor thermal stability of the two nonfluorine ionic liquids that began to decompose and release heat prior to coal, providing a large amount of heat for the low-temperature oxidation of coal and thus accelerating coal oxidation and combustion. Although the F-containing ionic liquids show the ability to inhibit spontaneous combustion of coal to some extent, their organic cations are potentially combustible and release large amounts of heat, smoke, and CO under high temperatures.
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Affiliation(s)
- Xuanxuan Huang
- College of Safety
Science and
Engineering, Henan Polytechnic University, 2001, Century Avenue, Jiaozuo, Henan 454000, China
| | - Yongliang Xu
- College of Safety
Science and
Engineering, Henan Polytechnic University, 2001, Century Avenue, Jiaozuo, Henan 454000, China
- Collaborative Innovation
Center for Coal Safety Production & High-Efficient-Clean Utilization
by Provincial and Ministerial Co-construction, 2001, Century Avenue, Jiaozuo, Henan 454000, China
- State Key Laboratory Cultivation Base for Gas Geology
and Gas Control in Henan Polytechnic University, 2001, Century Avenue, Jiaozuo, Henan 454000, China
| | - Yan Wang
- College of Safety
Science and
Engineering, Henan Polytechnic University, 2001, Century Avenue, Jiaozuo, Henan 454000, China
- Collaborative Innovation
Center for Coal Safety Production & High-Efficient-Clean Utilization
by Provincial and Ministerial Co-construction, 2001, Century Avenue, Jiaozuo, Henan 454000, China
- State Key Laboratory Cultivation Base for Gas Geology
and Gas Control in Henan Polytechnic University, 2001, Century Avenue, Jiaozuo, Henan 454000, China
| | - Yao Li
- College of Safety
Science and
Engineering, Henan Polytechnic University, 2001, Century Avenue, Jiaozuo, Henan 454000, China
- Collaborative Innovation
Center for Coal Safety Production & High-Efficient-Clean Utilization
by Provincial and Ministerial Co-construction, 2001, Century Avenue, Jiaozuo, Henan 454000, China
- State Key Laboratory Cultivation Base for Gas Geology
and Gas Control in Henan Polytechnic University, 2001, Century Avenue, Jiaozuo, Henan 454000, China
| | - Lanyun Wang
- College of Safety
Science and
Engineering, Henan Polytechnic University, 2001, Century Avenue, Jiaozuo, Henan 454000, China
- Collaborative Innovation
Center for Coal Safety Production & High-Efficient-Clean Utilization
by Provincial and Ministerial Co-construction, 2001, Century Avenue, Jiaozuo, Henan 454000, China
- State Key Laboratory Cultivation Base for Gas Geology
and Gas Control in Henan Polytechnic University, 2001, Century Avenue, Jiaozuo, Henan 454000, China
| | - Zhengyan Wu
- Laboratory of Gas and Fire Control for Coal Mines (China
University of Mining and Technology), Ministry of Education, Xuzhou 221116, China
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22
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Synthesis and application of geminal dicationic ionic liquids and poly (ionic liquids) combined imidazolium and pyridinium cations as demulsifiers for petroleum crude oil saline water emulsions. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115264] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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23
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Thermal Stability of Ionic Liquids: Current Status and Prospects for Future Development. Processes (Basel) 2021. [DOI: 10.3390/pr9020337] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Ionic liquids (ILs) are the safest solvent in various high-temperature applications due to their non-flammable properties. In order to obtain their thermal stability properties, thermogravimetric analysis (TGA) is extensively used to analyze the kinetics of the thermal decomposition process. This review summarizes the different kinetics analysis methods and finds the isoconversional methods are superior to the Arrhenius methods in calculating the activation energy, and two tools—the compensation effect and master plots—are suggested for the calculation of the pre-exponential factor. With both parameters, the maximum operating temperature (MOT) can be calculated to predict the thermal stability in long-term runnings. The collection of thermal stability data of ILs with divergent cations and anions shows the structure of cations such as alkyl side chains, functional groups, and alkyl substituents will affect the thermal stability, but their influence is less than that of anions. To develop ILs with superior thermal stability, dicationic ILs (DILs) are recommended, and typically, [C4(MIM)2][NTf2]2 has a decomposition temperature as high as 468.1 °C. For the convenience of application, thermal stability on the decomposition temperature and thermal decomposition activation energy of 130 ILs are summarized at the end of this manuscript.
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24
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Turguła A, Graś M, Gabryelczyk A, Lota G, Pernak J. Long-Chain Ionic Liquids Based on Monoquaternary DABCO Cations and TFSI Anions: Towards Stable Electrolytes for Electrochemical Capacitors. Chempluschem 2020; 85:2679-2688. [PMID: 33326698 DOI: 10.1002/cplu.202000680] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/03/2020] [Indexed: 02/02/2023]
Abstract
The desirable properties of ionic liquids (ILs) enable their use in various branches of chemistry, through a wide range of applications, e. g. as organic electrolytes. In the present study, an efficient two-step method was developed for the synthesis of long-chain ionic liquids with alkyl derivatives of DABCO as cations and bis(trifluoromethane)sulfonimide as anions. ILs obtained with high yields (≥91 %) were solids with melting points that increased with the rise in the number of carbon atoms of the alkyl substituent in the bicyclic cation. The structure of the compounds was confirmed by spectroscopic methods and elemental analysis. All compounds were soluble in the main solvents except water and hexane. The solubility in organic solvents such as acetonitrile allowed the use of synthesized ILs in electrochemical capacitors. Electrochemical tests revealed that the ILs enhanced the conductivity of organic electrolytes. This phenomenon improved the cyclability and reduced the internal resistance of the electrochemical capacitors.
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Affiliation(s)
- Anna Turguła
- Faculty of Chemical Technology, Poznan University of Technology, ul. Berdychowo 4, Poznan, 60-965, Poland
| | - Małgorzata Graś
- Faculty of Chemical Technology, Poznan University of Technology, ul. Berdychowo 4, Poznan, 60-965, Poland
| | - Agnieszka Gabryelczyk
- Faculty of Chemical Technology, Poznan University of Technology, ul. Berdychowo 4, Poznan, 60-965, Poland
| | - Grzegorz Lota
- Faculty of Chemical Technology, Poznan University of Technology, ul. Berdychowo 4, Poznan, 60-965, Poland
| | - Juliusz Pernak
- Faculty of Chemical Technology, Poznan University of Technology, ul. Berdychowo 4, Poznan, 60-965, Poland
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25
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Ionic Liquid Electrolytes for Safer and More Reliable Sodium Battery Systems. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10186323] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Na+-conducting, binary electrolytic mixtures, based on 1-ethyl-3-methyl-imidazolium, trimethyl-butyl-ammonium, and N-alkyl-N-methyl-piperidinium ionic liquid (IL) families, were designed and investigated. The anions were selected among the per(fluoroalkylsulfonyl)imide families. Sodium bis(trifluoromethylsulfonyl)imide, NaTFSI, was selected as the salt. The NaTFSI-IL electrolytes, addressed to safer sodium battery systems, were studied and compared in terms of ionic conductivity and thermal stability as a function of the temperature, the nature of the anion and the cation aliphatic side chain length. Room temperature conductivities of interest for sodium batteries, i.e., largely overcoming 10−4 or 10−3 S cm−1, are displayed. Similar conduction values are exhibited by the EMI-based samples even below −10 °C, making these electrolyte mixtures potentially appealing also for low temperature applications. The NaTFSI-IL electrolytes, with the exception of the FSI-ones, are found to be thermally stable up to 275 °C, depending on the nature of the cation and/or anion, thus extending their applicability above 100 °C and remarkably increasing the reliability and safety of the final device, especially in the case of prolonged overheating.
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26
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Gaida B, Brzęczek-Szafran A. Insights into the Properties and Potential Applications of Renewable Carbohydrate-Based Ionic Liquids: A Review. Molecules 2020; 25:E3285. [PMID: 32698359 PMCID: PMC7397332 DOI: 10.3390/molecules25143285] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/15/2020] [Accepted: 07/17/2020] [Indexed: 11/16/2022] Open
Abstract
Carbohydrate-derived ionic liquids have been explored as bio-alternatives to conventional ionic liquids for over a decade. Since their discovery, significant progress has been made regarding synthetic methods, understanding their environmental effect, and developing perspectives on their potential applications. This review discusses the relationships between the structural properties of carbohydrate ionic liquids and their thermal, toxicological, and biodegradability characteristics in terms of guiding future designs of sugar-rich systems for targeted applications. The synthetic strategies related to carbohydrate-based ionic liquids, the most recent relevant advances, and several perspectives for possible applications spanning catalysis, biomedicine, ecology, biomass, and energy conversion are presented herein.
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Affiliation(s)
| | - Alina Brzęczek-Szafran
- Department of Chemical Organic Technology and Petrochemistry, Silesian University of Technology, 44100 Gliwice, Poland;
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27
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Wang YL, Li B, Sarman S, Mocci F, Lu ZY, Yuan J, Laaksonen A, Fayer MD. Microstructural and Dynamical Heterogeneities in Ionic Liquids. Chem Rev 2020; 120:5798-5877. [PMID: 32292036 PMCID: PMC7349628 DOI: 10.1021/acs.chemrev.9b00693] [Citation(s) in RCA: 183] [Impact Index Per Article: 45.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Indexed: 12/11/2022]
Abstract
Ionic liquids (ILs) are a special category of molten salts solely composed of ions with varied molecular symmetry and charge delocalization. The versatility in combining varied cation-anion moieties and in functionalizing ions with different atoms and molecular groups contributes to their peculiar interactions ranging from weak isotropic associations to strong, specific, and anisotropic forces. A delicate interplay among intra- and intermolecular interactions facilitates the formation of heterogeneous microstructures and liquid morphologies, which further contributes to their striking dynamical properties. Microstructural and dynamical heterogeneities of ILs lead to their multifaceted properties described by an inherent designer feature, which makes ILs important candidates for novel solvents, electrolytes, and functional materials in academia and industrial applications. Due to a massive number of combinations of ion pairs with ion species having distinct molecular structures and IL mixtures containing varied molecular solvents, a comprehensive understanding of their hierarchical structural and dynamical quantities is of great significance for a rational selection of ILs with appropriate properties and thereafter advancing their macroscopic functionalities in applications. In this review, we comprehensively trace recent advances in understanding delicate interplay of strong and weak interactions that underpin their complex phase behaviors with a particular emphasis on understanding heterogeneous microstructures and dynamics of ILs in bulk liquids, in mixtures with cosolvents, and in interfacial regions.
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Affiliation(s)
- Yong-Lei Wang
- Department
of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Bin Li
- School
of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, P. R. China
| | - Sten Sarman
- Department
of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Francesca Mocci
- Department
of Chemical and Geological Sciences, University
of Cagliari, I-09042 Monserrato, Italy
| | - Zhong-Yuan Lu
- State
Key Laboratory of Supramolecular Structure and Materials, Institute
of Theoretical Chemistry, Jilin University, Changchun 130021, P. R. China
| | - Jiayin Yuan
- Department
of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Aatto Laaksonen
- Department
of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
- State
Key Laboratory of Materials-Oriented and Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
- Centre of
Advanced Research in Bionanoconjugates and Biopolymers, Petru Poni Institute of Macromolecular Chemistry Aleea Grigore Ghica-Voda, 41A, 700487 Iasi, Romania
- Department
of Engineering Sciences and Mathematics, Division of Energy Science, Luleå University of Technology, SE-97187 Luleå, Sweden
| | - Michael D. Fayer
- Department
of Chemistry, Stanford University, Stanford, California 94305, United States
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28
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Rybińska-Fryca A, Mikolajczyk A, Łuczak J, Paszkiewicz-Gawron M, Paszkiewicz M, Zaleska-Medynska A, Puzyn T. How thermal stability of ionic liquids leads to more efficient TiO2-based nanophotocatalysts: Theoretical and experimental studies. J Colloid Interface Sci 2020; 572:396-407. [DOI: 10.1016/j.jcis.2020.03.079] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 03/10/2020] [Accepted: 03/22/2020] [Indexed: 12/20/2022]
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29
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30
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Comparative study of the physical and electrochemical behavior of direct N-SO3H functionalized 1, 3-disulfo-2-alkyl-imidazolium trifluoroacetate ionic liquids in molecular solvents. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111099] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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31
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Yamaguchi K, Usui H, Domi Y, Nishida H, Komura T, Nokami T, Itoh T, Sakaguchi H. Electrochemical performance of Sn4P3 negative electrode for Na-ion batteries in ether-substituted ionic liquid electrolyte. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.05.047] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Appetecchi GB. Safer electrolyte components for rechargeable batteries. PHYSICAL SCIENCES REVIEWS 2019. [DOI: 10.1515/psr-2017-0150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractAmong the electrochemical energy storage systems, rechargeable lithium batteries are considered very promising candidates for the next generation power sources because of their high gravimetric and volumetric energy density with respect to other cell chemistries. The lithium-ion battery technology is based on the use of electrode materials able to reversibly intercalate lithium cations, which are continuously transferred between two host structures (negative and positive electrodes) during the charge and discharge processes. Commercial lithium-ion batteries commonly use liquid electrolytes based on suitable lithium salts (solute) and organic compounds (solvents). The latter, volatile and flammable, represent serious concerns for the safety of the electrochemical devices, this so far preventing their large diffusion in applications as automotive, storage from renewable sources, smart grids.One of the most appealing approaches is the partial or total replacement of the organic solvents with safer, less hazardous, electrolyte components. Here, a concise survey of ones of the most investigated types of alternative electrolyte components, proposed for safer and more reliable rechargeable lithium batteries, is reported.Graphical Abstract:
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33
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Moscardini A, Mezzetta A, Calisi N, Caporali S, Pomelli CS, Guazzelli L, Chiappe C. Investigation of a family of structurally-related guanidinium ionic liquids through XPS and thermal analysis. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.12.083] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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34
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Ahmad NA, Jumbri K, Ramli A, Ghani NA, Ahmad H, Kassim MA. Synthesis, characterisation and antioxidant properties of ferulate-based protic ionic liquids: Experimental and modelling approaches. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.01.048] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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35
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Venkatraman V, Raj JJ, Evjen S, Lethesh KC, Fiksdahl A. In silico prediction and experimental verification of ionic liquid refractive indices. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.05.067] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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36
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Dong L, Liang F, Wang D, Zhu C, Liu J, Gui D, Li C. Safe ionic liquid-sulfolane/LiDFOB electrolytes for high voltage Li1.15(Ni0.36Mn0.64)0.85O2 lithium ion battery at elevated temperatures. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.03.108] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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37
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Xue Z, Qin L, Jiang J, Mu T, Gao G. Thermal, electrochemical and radiolytic stabilities of ionic liquids. Phys Chem Chem Phys 2018; 20:8382-8402. [DOI: 10.1039/c7cp07483b] [Citation(s) in RCA: 183] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Ionic liquids show instability when exposed to high temperature, to high voltage as electrolytes, or under irradiation.
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Affiliation(s)
- Zhimin Xue
- Beijing Key Laboratory of Lignocellulosic Chemistry
- College of Materials Science and Technology
- Beijing Forestry University
- Beijing 100083
- China
| | - Li Qin
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Jingyun Jiang
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- China
| | - Tiancheng Mu
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- China
| | - Guohua Gao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
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38
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Gusain R, Bakshi PS, Panda S, Sharma OP, Gardas R, Khatri OP. Physicochemical and tribophysical properties of trioctylalkylammonium bis(salicylato)borate (N888n-BScB) ionic liquids: effect of alkyl chain length. Phys Chem Chem Phys 2017; 19:6433-6442. [DOI: 10.1039/c6cp05990b] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The alkyl chain length in trioctylalkylammonium bis(salicylato)borate ionic liquids plays an important role in controlling the viscosity, friction and wear characteristics.
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Affiliation(s)
- Rashi Gusain
- Chemical Science Division
- CSIR-Indian Institute of Petroleum
- Dehradun – 248005
- India
| | - Paramjeet S. Bakshi
- Chemical Science Division
- CSIR-Indian Institute of Petroleum
- Dehradun – 248005
- India
| | - Somenath Panda
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai – 600036
- India
| | - Om P. Sharma
- Chemical Science Division
- CSIR-Indian Institute of Petroleum
- Dehradun – 248005
- India
| | - Ramesh Gardas
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai – 600036
- India
| | - Om P. Khatri
- Chemical Science Division
- CSIR-Indian Institute of Petroleum
- Dehradun – 248005
- India
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39
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Mousavi MPS, Wilson BE, Kashefolgheta S, Anderson EL, He S, Bühlmann P, Stein A. Ionic Liquids as Electrolytes for Electrochemical Double-Layer Capacitors: Structures that Optimize Specific Energy. ACS APPLIED MATERIALS & INTERFACES 2016; 8:3396-406. [PMID: 26771378 DOI: 10.1021/acsami.5b11353] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Key parameters that influence the specific energy of electrochemical double-layer capacitors (EDLCs) are the double-layer capacitance and the operating potential of the cell. The operating potential of the cell is generally limited by the electrochemical window of the electrolyte solution, that is, the range of applied voltages within which the electrolyte or solvent is not reduced or oxidized. Ionic liquids are of interest as electrolytes for EDLCs because they offer relatively wide potential windows. Here, we provide a systematic study of the influence of the physical properties of ionic liquid electrolytes on the electrochemical stability and electrochemical performance (double-layer capacitance, specific energy) of EDLCs that employ a mesoporous carbon model electrode with uniform, highly interconnected mesopores (3DOm carbon). Several ionic liquids with structurally diverse anions (tetrafluoroborate, trifluoromethanesulfonate, trifluoromethanesulfonimide) and cations (imidazolium, ammonium, pyridinium, piperidinium, and pyrrolidinium) were investigated. We show that the cation size has a significant effect on the electrolyte viscosity and conductivity, as well as the capacitance of EDLCs. Imidazolium- and pyridinium-based ionic liquids provide the highest cell capacitance, and ammonium-based ionic liquids offer potential windows much larger than imidazolium and pyridinium ionic liquids. Increasing the chain length of the alkyl substituents in 1-alkyl-3-methylimidazolium trifluoromethanesulfonimide does not widen the potential window of the ionic liquid. We identified the ionic liquids that maximize the specific energies of EDLCs through the combined effects of their potential windows and the double-layer capacitance. The highest specific energies are obtained with ionic liquid electrolytes that possess moderate electrochemical stability, small ionic volumes, low viscosity, and hence high conductivity, the best performing ionic liquid tested being 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide.
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Affiliation(s)
- Maral P S Mousavi
- Department of Chemistry, University of Minnesota , 207 Pleasant Street S.E., Minneapolis, Minnesota 55455, United States
| | - Benjamin E Wilson
- Department of Chemistry, University of Minnesota , 207 Pleasant Street S.E., Minneapolis, Minnesota 55455, United States
| | - Sadra Kashefolgheta
- Department of Theory and Bio-Systems, Max Planck Institute of Colloids and Interfaces , Science Park, Potsdam 14476, Germany
| | | | | | - Philippe Bühlmann
- Department of Chemistry, University of Minnesota , 207 Pleasant Street S.E., Minneapolis, Minnesota 55455, United States
| | - Andreas Stein
- Department of Chemistry, University of Minnesota , 207 Pleasant Street S.E., Minneapolis, Minnesota 55455, United States
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40
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Novel functionalized ionic liquid with a sulfur atom in the aliphatic side chain of the pyrrolidinium cation. Electrochem commun 2016. [DOI: 10.1016/j.elecom.2015.12.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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41
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Ionic conductivities of N-butyl-N-methylpiperidinium-TFSI ionic liquid. ELECTROCHEMISTRY 2016. [DOI: 10.1007/978-3-642-02723-9_1105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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42
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Ionic conductivities of N-hexyl-N-methylpiperidinium-TFSI ionic liquid. ELECTROCHEMISTRY 2016. [DOI: 10.1007/978-3-642-02723-9_1107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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43
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Holze R. Ionic conductivities of N-ethyl-N-methylpiperidinium-TFSI ionic liquid. ELECTROCHEMISTRY 2016. [DOI: 10.1007/978-3-642-02723-9_1103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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44
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Gusain R, Khatri OP. Fatty acid ionic liquids as environmentally friendly lubricants for low friction and wear. RSC Adv 2016. [DOI: 10.1039/c5ra25001c] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Tetrabutylammonium-fatty acids ionic liquids as lubricants exhibited significantly lower friction compared to polyol ester lube base oil.
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Affiliation(s)
- Rashi Gusain
- Chemical Science Division
- CSIR-Indian Institute of Petroleum
- Dehradun-248005
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Om P. Khatri
- Chemical Science Division
- CSIR-Indian Institute of Petroleum
- Dehradun-248005
- India
- Academy of Scientific and Innovative Research (AcSIR)
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45
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Holze R. Ionic conductivities of N-methyl-N-methylpiperi-dinium-TFSI ionic liquid. ELECTROCHEMISTRY 2016. [DOI: 10.1007/978-3-642-02723-9_1102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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46
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Holze R. Ionic conductivities of N-octyl-N-methylpiperidinium-TFSI ionic liquid. ELECTROCHEMISTRY 2016. [DOI: 10.1007/978-3-642-02723-9_1109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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47
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Ionic conductivities of N-butyl-N-ethylpiperidinium-TFSI ionic liquid. ELECTROCHEMISTRY 2016. [DOI: 10.1007/978-3-642-02723-9_1111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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48
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Holze R. Ionic conductivities of N-propyl-N-ethylpiperidinium-TFSI ionic liquid. ELECTROCHEMISTRY 2016. [DOI: 10.1007/978-3-642-02723-9_1110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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49
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Chancelier L, Boyron O, Gutel T, Santini C. Thermal stability of imidazolium-based ionic liquids. FRENCH-UKRAINIAN JOURNAL OF CHEMISTRY 2016. [DOI: 10.17721/fujcv4i1p51-64] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
This work highlights the factors tuning the thermal stability of imidazolium-based ionic liquids (IL) associated to bis(trifluoromethanesulfonyl)imide anion [NTf2]. The decomposition temperatures (Td) were evaluated by thermogravimetric analyses (TGA) with optimized parameters to obtain reproducible Td. The impact of the alkyl chain length and of the presence of functional groups and unsaturations on Td were evaluated. The thermal behaviour was governed by Van der Waals interactions between alkyl chains, and by inter and intra coulombic interactions such as hydrogen bonds.
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50
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Holze R. Ionic conductivities of N-pentyl-N-ethylpiperidinium- bis(trifluoromethylsulfonyl)imide. ELECTROCHEMISTRY 2016. [DOI: 10.1007/978-3-642-02723-9_1112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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