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Bi W, Liu S, Rong X, Ma G, Luo J. Vapor Pressure and Enthalpy of Vaporization of Guanidinium Methanesulfonate as a Phase Change Material for Thermal Energy Storage. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2582. [PMID: 38893846 PMCID: PMC11173630 DOI: 10.3390/ma17112582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 05/24/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024]
Abstract
This paper reports the vapor pressure and enthalpy of vaporization for a promising phase change material (PCM) guanidinium methanesulfonate ([Gdm][OMs]), which is a typical guanidinium organomonosulfonate that displays a lamellar crystalline architecture. [Gdm][OMs] was purified by recrystallization. The elemental analysis and infrared spectrum of [Gdm][OMs] confirmed the purity and composition. Differential scanning calorimetry (DSC) also confirmed its high purity and showed a sharp and symmetrical endothermic melting peak with a melting point (Tm) of 207.6 °C and a specific latent heat of fusion of 183.0 J g-1. Thermogravimetric analysis (TGA) reveals its thermal stability over a wide temperature range, and yet three thermal events at higher temperatures of 351 °C, 447 °C, and 649 °C were associated with vaporization or decomposition. The vapor pressure was measured using the isothermogravimetric method from 220 °C to 300 °C. The Antoine equation was used to describe the temperature dependence of its vapor pressure, and the substance-dependent Antoine constants were obtained by non-linear regression. The enthalpy of vaporization (ΔvapH) was derived from the linear regression of the slopes associated with the linear temperature dependence of the rate of weight loss per unit area of vaporization. Hence, the temperature dependence of vapor pressures ln Pvap (Pa) = 10.99 - 344.58/(T (K) - 493.64) over the temperature range from 493.15 K to 573.15 K and the enthalpy of vaporization ΔvapH = 157.10 ± 20.10 kJ mol-1 at the arithmetic mean temperature of 240 °C were obtained from isothermogravimetric measurements using the Antoine equation and the Clausius-Clapeyron equation, respectively. The flammability test indicates that [Gdm][OMs] is non-flammable. Hence, [Gdm][OMs] enjoys very low volatility, high enthalpy of vaporization, and non-flammability in addition to its known advantages. This work thus offers data support, methodologies, and insights for the application of [Gdm][OMs] and other organic salts as PCMs in thermal energy storage and beyond.
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Affiliation(s)
| | | | | | | | - Jiangshui Luo
- Laboratory of Electrolytes and Phase Change Materials, College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
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2
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Liu X, Zhang Y, Sun S. Lipophilic alkyl caffeate synthesis using a novel green binuclear ionic liquid 1,1-bis(2-pyrrolidinone) sulfate ([C 3(Hnhp) 2][HSO 4] 2) catalyst. Food Chem 2024; 434:137500. [PMID: 37751672 DOI: 10.1016/j.foodchem.2023.137500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/06/2023] [Accepted: 09/13/2023] [Indexed: 09/28/2023]
Abstract
Caffeic acid (CA), as a potential green antioxidant, plays an important role in food processing. However, the low liposolubility of CA limits its applications. To overcome this issue, CA is normally modified by introducing a lipophilic group, such as alkyl alcohols, resulting in the formation of alkyl caffeate, which can significantly enhance the liposolubility of CA. In this study, a binuclear ionic liquid, 1,1-bis(2-pyrrolidinone) sulfate ([C3(Hnhp)2][HSO4]2), is successfully synthesized and characterized by FT-IR and 1H NMR. The physico-chemical properties of [C3(Hnhp)2][HSO4]2, including the density, viscosity, thermal stability and Brønsted acidity, were analyzed. As a novel catalyst for the esterification of CA with model dodecanol, its catalytic performance was investigated and optimized by response surface methodology. Under the optimal conditions, a 95.42 ± 1.01% yield of dodecanol caffeate was achieved. Moreover, the [C3(Hnhp)2][HSO4]2 exhibits excellent stability and reusability, making it a highly promising catalyst for the synthesis of various lipophilic alkyl caffeates.
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Affiliation(s)
- Xuejing Liu
- National Engineering Research Center of Wheat and Corn Further Processing, School of Food Science and Engineering, Henan University of Technology, Lianhua Road 100, Zhengzhou 450001, Henan Province, PR China.
| | - Yaoyao Zhang
- National Engineering Research Center of Wheat and Corn Further Processing, School of Food Science and Engineering, Henan University of Technology, Lianhua Road 100, Zhengzhou 450001, Henan Province, PR China.
| | - Shangde Sun
- National Engineering Research Center of Wheat and Corn Further Processing, School of Food Science and Engineering, Henan University of Technology, Lianhua Road 100, Zhengzhou 450001, Henan Province, PR China.
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3
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Zhou T, Gui C, Sun L, Hu Y, Lyu H, Wang Z, Song Z, Yu G. Energy Applications of Ionic Liquids: Recent Developments and Future Prospects. Chem Rev 2023; 123:12170-12253. [PMID: 37879045 DOI: 10.1021/acs.chemrev.3c00391] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
Ionic liquids (ILs) consisting entirely of ions exhibit many fascinating and tunable properties, making them promising functional materials for a large number of energy-related applications. For example, ILs have been employed as electrolytes for electrochemical energy storage and conversion, as heat transfer fluids and phase-change materials for thermal energy transfer and storage, as solvents and/or catalysts for CO2 capture, CO2 conversion, biomass treatment and biofuel extraction, and as high-energy propellants for aerospace applications. This paper provides an extensive overview on the various energy applications of ILs and offers some thinking and viewpoints on the current challenges and emerging opportunities in each area. The basic fundamentals (structures and properties) of ILs are first introduced. Then, motivations and successful applications of ILs in the energy field are concisely outlined. Later, a detailed review of recent representative works in each area is provided. For each application, the role of ILs and their associated benefits are elaborated. Research trends and insights into the selection of ILs to achieve improved performance are analyzed as well. Challenges and future opportunities are pointed out before the paper is concluded.
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Affiliation(s)
- Teng Zhou
- Sustainable Energy and Environment Thrust, The Hong Kong University of Science and Technology (Guangzhou), Nansha, Guangzhou 511400, China
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong, SAR 999077, China
- HKUST Shenzhen-Hong Kong Collaborative Innovation Research Institute, Futian, Shenzhen 518048, China
| | - Chengmin Gui
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Longgang Sun
- Sustainable Energy and Environment Thrust, The Hong Kong University of Science and Technology (Guangzhou), Nansha, Guangzhou 511400, China
| | - Yongxin Hu
- Sustainable Energy and Environment Thrust, The Hong Kong University of Science and Technology (Guangzhou), Nansha, Guangzhou 511400, China
| | - Hao Lyu
- Sustainable Energy and Environment Thrust, The Hong Kong University of Science and Technology (Guangzhou), Nansha, Guangzhou 511400, China
| | - Zihao Wang
- Department for Process Systems Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Sandtorstr. 1, D-39106 Magdeburg, Germany
| | - Zhen Song
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Gangqiang Yu
- Faculty of Environment and Life, Beijing University of Technology, 100 Ping Le Yuan, Chaoyang District, Beijing 100124, China
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4
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Mokhtarpour M, Rostami A, Shekaari H, Zarghami A, Faraji S. Novel protic ionic liquids-based phase change materials for high performance thermal energy storage systems. Sci Rep 2023; 13:18936. [PMID: 37919341 PMCID: PMC10622417 DOI: 10.1038/s41598-023-45549-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 10/20/2023] [Indexed: 11/04/2023] Open
Abstract
Phase change materials (PCMs) are an important class of innovative materials that considerably contribute to the effective use and conservation of solar energy and wasted heat in thermal energy storage systems (TES). The performance of TES can be improved by using environmentally friendly PCMs called ionic liquids (ILs) based on ethanolamines and fatty acids. The 2-hydroxyethylammonium, bis(2-hydroxyethyl)ammonium, and tris(2-hydroxyethyl)ammonium palmitate ILs, which function is in the temperature range of 30-100 °C and provide a safe and affordable capacity, are introduced in this study for the first time as PCMs. PCMs' chemical composition and microstructure were examined using fourier transformation infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM), respectively. DSC was used to evaluate the ILs' latent heat of fusion and specific heat capacity, while TGA was used to establish their thermal stability. Finally, a home-made device with a PCMs (synthesized ILs) container cell and a commercial thermoelectric generator device to record the real-time voltage (V) was used to convert thermal energy into electrical energy.
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Affiliation(s)
| | - Ali Rostami
- Photonics and Nanocrystal Research Lab (PNRL), Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, Iran.
| | - Hemayat Shekaari
- Department of Physical Chemistry, University of Tabriz, Tabriz, Iran
| | - Armin Zarghami
- Photonics and Nanocrystal Research Lab (PNRL), Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, Iran
| | - Saeid Faraji
- Department of Physical Chemistry, University of Tabriz, Tabriz, Iran
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5
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Matuszek K, Kar M, Pringle JM, MacFarlane DR. Phase Change Materials for Renewable Energy Storage at Intermediate Temperatures. Chem Rev 2023; 123:491-514. [PMID: 36417460 DOI: 10.1021/acs.chemrev.2c00407] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Thermal energy storage technologies utilizing phase change materials (PCMs) that melt in the intermediate temperature range, between 100 and 220 °C, have the potential to mitigate the intermittency issues of wind and solar energy. This technology can take thermal or electrical energy from renewable sources and store it in the form of heat. This is of particular utility when the end use of the energy is also as heat. For this purpose, the material should have a phase change between 100 and 220 °C with a high latent heat of fusion. Although a range of PCMs are known for this temperature range, many of these materials are not practically viable for stability and safety reasons, a perspective not often clear in the primary literature. This review examines the recent development of thermal energy storage materials for application with renewables, the different material classes, their physicochemical properties, and the chemical structural origins of their advantageous thermal properties. Perspectives on further research directions needed to reach the goal of large scale, highly efficient, inexpensive, and reliable intermediate temperature thermal energy storage technologies are also presented.
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Affiliation(s)
- Karolina Matuszek
- School of Chemistry, Monash University, Clayton, Victoria3800, Australia
| | - Mega Kar
- School of Chemistry, Monash University, Clayton, Victoria3800, Australia
| | - Jennifer M Pringle
- Institute for Frontier Materials, Deakin University Burwood, Burwood, Victoria3125, Australia
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Beck TS, de Mattos M, Jortieke CR, Vieira JC, Verdi CM, Santos RC, Sagrillo MR, Rossato A, da Silva Silveira L, Frizzo CP. Structural effects of amino acid-based ionic liquids on thermophysical properties, and antibacterial and cytotoxic activity. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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7
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Zafar A, Evans T, Palgrave RG, ud-Din I. An X-ray photoelectron spectroscopy study of ionic liquids based on a bridged dicationic moiety. JOURNAL OF CHEMICAL RESEARCH 2022. [DOI: 10.1177/17475198221092966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A series of imidazolium and pyridinium-based bridged dicationic ionic liquids have been analysed using X-ray photoelectron spectroscopy. The different electronic environments of the dications have been investigated and a robust fitting model for the carbon C1s region has also been developed. The relative positions of different C1s components and N1s of dications have been determined and their complex C1s photoemission spectra produced from both aromatic and aliphatic carbon states giving photoemission peaks in the binding energy range of 289.0–283.9 eV. A contemporary fitting approach has been applied to a different set of environments which allowing comparison of the binding energies of cationic components of imidazolium and pyridinium-based dicationic ionic liquids. The experimental stoichiometry of all the carbons and nitrogens have also been calculated from XP spectra of the dicationic ionic liquids.
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Affiliation(s)
- Anham Zafar
- Chemistry Department, University College London, London, UK
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Tim Evans
- Chemistry Department, University College London, London, UK
| | | | - Imtiaz- ud-Din
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
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8
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Mital DK, Nancarrow P, Ibrahim TH, Abdel Jabbar N, Khamis MI. Ionic Liquid Melting Points: Structure–Property Analysis and New Hybrid Group Contribution Model. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Dhruve Kumar Mital
- Department of Chemical Engineering, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates
| | - Paul Nancarrow
- Department of Chemical Engineering, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates
| | - Taleb Hassan Ibrahim
- Department of Chemical Engineering, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates
| | - Nabil Abdel Jabbar
- Department of Chemical Engineering, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates
| | - Mustafa I. Khamis
- Department of Biology, Chemistry and Environmental Sciences, American University of Sharjah, P.O.
Box 26666, Sharjah, United Arab Emirates
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9
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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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10
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Lee BS, Feng CT, Lin KH, Lin WC, Shu YL, Shu CM. Effectiveness and application of modified wind turbine coating: Adding ionic liquids to titanium dioxide and diatomaceous earth. J Loss Prev Process Ind 2021. [DOI: 10.1016/j.jlp.2021.104566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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11
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Lotfi S, Ahmadi S, Kumar P. A hybrid descriptor based QSPR model to predict the thermal decomposition temperature of imidazolium ionic liquids using Monte Carlo approach. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116465] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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12
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Matuszek K, Vijayaraghavan R, Kar M, Mahadevan S, MacFarlane DR. Guanidinium Organic Salts as Phase-Change Materials for Renewable Energy Storage. CHEMSUSCHEM 2021; 14:2757-2762. [PMID: 33982440 DOI: 10.1002/cssc.202100724] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/10/2021] [Indexed: 06/12/2023]
Abstract
A dearth of inexpensive means of energy storage is constraining the expansion of intermittent renewable energy sources such as sun and wind. Thermal energy storage technology utilizing phase-change materials (PCMs) is a promising solution, enabling storage of large quantities of thermal energy at a relatively low cost. Guanidinium mesylate, which melts at 208 °C with latent heat of fusion of ΔHf =190 J g-1 is a promising PCM candidate for these applications.[1] Here, studies on guanidinium organic salts were conducted, including heat capacity, thermal conductivity, advanced thermal stability, long-term cycling, and economic analysis. The data place guanidinium mesylate among the best PCMs operating in the 100-220 °C temperature region in terms of thermal energy storage, with total volumetric energy storage measured as 622 MJ m-3 (173 kWh m-3 ). Additionally, it was shown to be stable during cycling, with over 400 cycles performed. Simple economic analysis indicated a cost of 6 USD per MJ of stored thermal energy. This study proves that guanidinium mesylate and potentially other similar salts can be feasible as PCMs for inexpensive energy storage for renewable energy storage applications.
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Affiliation(s)
- Karolina Matuszek
- School of Chemistry, Monash University, 3800, Clayton, VIC, Australia
| | - R Vijayaraghavan
- School of Chemistry, Monash University, 3800, Clayton, VIC, Australia
| | - Mega Kar
- School of Chemistry, Monash University, 3800, Clayton, VIC, Australia
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13
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Cation-Anion Interactions, Stability, and IR Spectra of Dicationic Amino Acid-Based Ionic Liquids Probed Using Density Functional Theory. J Mol Model 2021; 27:180. [PMID: 34023983 DOI: 10.1007/s00894-021-04796-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 05/11/2021] [Indexed: 10/21/2022]
Abstract
In this work, we have theoretically studied the dicationic ionic liquids (DILs) constructed from geminal methylimidazolium dication with varying amino acid anions and spacers using density functional theory. Amino acid-based DILs form via strong C-H···O hydrogen bonds. These hydrogen bonds have a significant role in stabilizing the DILs. The higher cation-anion interaction energy in the order of covalent bond energy and liquid density of DILs imply higher thermal stability than their mono analogues. The C-H stretching frequencies are above 3100 cm-1 in all complexes and form a signature for DILs. Interestingly, aliphatic and aromatic amino acid anions show similar molecular properties. Overall, the DILs formed from amino acids exhibit high stability and large surface tension and are chemically non-toxic; hence, they can replace inorganic DILs.
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14
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Vieira JC, Villetti MA, Frizzo CP. Thermal stability and decomposition mechanism of dicationic imidazolium-based ionic liquids with carboxylate anions. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115618] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Mital DK, Nancarrow P, Zeinab S, Jabbar NA, Ibrahim TH, Khamis MI, Taha A. Group Contribution Estimation of Ionic Liquid Melting Points: Critical Evaluation and Refinement of Existing Models. Molecules 2021; 26:2454. [PMID: 33922374 PMCID: PMC8122861 DOI: 10.3390/molecules26092454] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 04/19/2021] [Accepted: 04/20/2021] [Indexed: 11/17/2022] Open
Abstract
While several group contribution method (GCM) models have been developed in recent years for the prediction of ionic liquid (IL) properties, some challenges exist in their effective application. Firstly, the models have been developed and tested based on different datasets; therefore, direct comparison based on reported statistical measures is not reliable. Secondly, many of the existing models are limited in the range of ILs for which they can be used due to the lack of functional group parameters. In this paper, we examine two of the most diverse GCMs for the estimation of IL melting point; a key property in the selection and design of ILs for materials and energy applications. A comprehensive database consisting of over 1300 data points for 933 unique ILs, has been compiled and used to critically evaluate the two GCMs. One of the GCMs has been refined by introducing new functional groups and reparametrized to give improved performance for melting point estimation over a wider range of ILs. This work will aid in the targeted design of ILs for materials and energy applications.
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Affiliation(s)
- Dhruve Kumar Mital
- Department of Chemical Engineering, American University of Sharjah, Sharjah 26666, United Arab Emirates; (D.K.M.); (S.Z.); (N.A.J.); (T.H.I.); (A.T.)
| | - Paul Nancarrow
- Department of Chemical Engineering, American University of Sharjah, Sharjah 26666, United Arab Emirates; (D.K.M.); (S.Z.); (N.A.J.); (T.H.I.); (A.T.)
| | - Samira Zeinab
- Department of Chemical Engineering, American University of Sharjah, Sharjah 26666, United Arab Emirates; (D.K.M.); (S.Z.); (N.A.J.); (T.H.I.); (A.T.)
| | - Nabil Abdel Jabbar
- Department of Chemical Engineering, American University of Sharjah, Sharjah 26666, United Arab Emirates; (D.K.M.); (S.Z.); (N.A.J.); (T.H.I.); (A.T.)
| | - Taleb Hassan Ibrahim
- Department of Chemical Engineering, American University of Sharjah, Sharjah 26666, United Arab Emirates; (D.K.M.); (S.Z.); (N.A.J.); (T.H.I.); (A.T.)
| | - Mustafa I. Khamis
- Department of Biology, Chemistry and Environmental Sciences, American University of Sharjah, Sharjah 26666, United Arab Emirates;
| | - Alnoman Taha
- Department of Chemical Engineering, American University of Sharjah, Sharjah 26666, United Arab Emirates; (D.K.M.); (S.Z.); (N.A.J.); (T.H.I.); (A.T.)
- Department of Chemical Engineering, University of Birmingham, SW Campus, Birmingham B15 2TT, UK
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16
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Synthesis, conformational studies, vibrational spectra and thermal properties, of new 1,4-(phenylenebis(methylene) bis(methyl-imidazolium) ionic liquids. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128731] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Kuhn BL, Osmari BF, Heinen TM, Bonacorso HG, Zanatta N, Nielsen SO, Ranathunga DT, Villetti MA, Frizzo CP. Dicationic imidazolium-based dicarboxylate ionic liquids: Thermophysical properties and solubility. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112983] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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18
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Experimental investigation of thermo-physical properties of geminal dicationic ionic compounds for latent thermal energy storage. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112994] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Matuszek K, Vijayaraghavan R, Forsyth CM, Mahadevan S, Kar M, MacFarlane DR. Pyrazolium Phase-Change Materials for Solar-Thermal Energy Storage. CHEMSUSCHEM 2020; 13:159-164. [PMID: 31657142 DOI: 10.1002/cssc.201902601] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 10/24/2019] [Indexed: 06/10/2023]
Abstract
Thermal energy storage technology utilizing phase-change materials (PCMs) can be a promising solution for the intermittency of renewable energy sources. This work describes a novel family of PCMs based on the pyrazolium cation, that operate in the 100-200 °C temperature range, offering safe, inexpensive capacity and low supercooling. Thermal stability and extensive cycling tests of the most promising PCM candidate, pyrazolium mesylate (Tm =168±1 °C, ΔHf =160 J g-1 ±5 %, ΔHtotal v =495 MJ m-3 ±5 %) show potential for its use in thermal storage applications. Additionally, this work discusses the molecular origins of the high thermal energy storage capacity of these ionic materials based on their crystal structures, revealing the importance of hydrogen bonds in PCM performance.
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Affiliation(s)
- Karolina Matuszek
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia
| | - R Vijayaraghavan
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia
| | - Craig M Forsyth
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia
| | - Surianarayanan Mahadevan
- Chemical Engineering Department, Central Leather Research Institute, Adyar, Chennai, 6000-20, Tamilnadu, India
| | - Mega Kar
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia
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