Article
Thermodynamics
F. F. Zhang, X. Y. Li, G. Chen, T. Wang, T. X. Jin, C. X. Cheng, G. P. Li, L. G. Zhang, B. Zhang, F. F. Zheng
Summary: This study investigated the thermophysical properties and water sorption characteristics of the [EMIm]Ac ionic liquid and water binary systems, developing mathematical relationships between the measured properties and the variables. Modified two-step sorption mechanism and linear desorption kinetics were proposed for absorption and desorption processes, aiding in the evaluation of their performance.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Article
Chemistry, Multidisciplinary
Gabriela Huminic, Angel Huminic
Summary: This study investigates the use of new working fluids NH3/IL+ CNMs solutions as an alternative to conventional working fluids. The results indicate that by adding nanomaterials, the thermal conductivity of the solution increases while its viscosity and specific heat decrease.
Article
Chemistry, Multidisciplinary
Balaji Bakthavatchalam, Khairul Habib, R. Saidur, Navid Aslfattahi, Syed Mohd Yahya, A. Rashedi, Taslima Khanam
Summary: This study utilized MXene nanoparticles as a heat dissipative solute in nanofluids, blended with DEG and IL to create stable nanofluids. Experimental and computational analysis showed that this working fluid significantly enhances thermal efficiency, electrical efficiency, and heat transfer coefficient in hybrid photovoltaic/thermal systems.
Article
Chemistry, Physical
Oscar Nordness, Pratik Kelkar, Yuanyuan Lyu, Michael Baldea, Mark A. Stadtherr, Joan F. Brennecke
Summary: This study introduces an SVR machine learning framework for predicting properties of imidazolium ionic liquids by extracting universal features from COSMO-RS sigma profiles. After training and testing the model, it shows the ability to predict viscosity, conductivity, and density of unobserved ILs using the selected features. The performance of the model is compared with different kernels through cross-validation to ensure unbiased results.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Olga N. Kondrat'eva, Galina E. Nikiforova, Alexander Tyurin, Maria N. Smirnova, Konstantin S. Gavrichev
Summary: This paper presents thermodynamic and thermophysical property data on holmium orthovanadate, including measurements of heat capacity and thermal diffusivity at different temperature ranges. The research provides detailed insights into the thermodynamic properties of HoVO4.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Parvaneh Momeni, Hemayat Shekaari
Summary: The thermodynamic properties of ionic liquid choline lactate ([Ch][Lac]) as a potential entrainer in azeotropic mixture separation were studied. It was found that the interactions between ethanol/1-propanol/2-propanol and [Ch][Lac] were stronger, making [Ch][Lac] an efficient entrainer for separating 2-propanol.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Thermodynamics
Myeongjin Jung, YoonKook Park
Summary: This study experimentally investigated the properties, such as density, viscosity, and solubility, of deep eutectic solvents containing levulinic acid and choline chloride. The results showed that deep eutectic solvents exhibited high selectivity.
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2022)
Article
Thermodynamics
Kazuyoshi Kaneko, Kyohei Kitawaki, Shuji Hattori, Tomoyoshi Mori, Yukihiro Yoshimura, Akio Shimizu
Summary: The purpose of this study is to investigate the changes in the solution structure and interaction of the propylammonium nitrate (PAN)/water system in response to temperature and water concentration. The results show that PAN forms a more ordered structure when mixed with water, despite the decrease in intermolecular interaction. The increase in temperature leads to an increase in attractive intermolecular interaction and a transition from an ordered to a disordered structure.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2023)
Article
Chemistry, Physical
Thaissa S. Beck, Mara de Mattos, Carlos R. T. Jortieke, Jean C. B. Vieira, Camila M. Verdi, Roberto C. V. Santos, Michele R. Sagrillo, Aline Rossato, Larissa da Silva Silveira, Clarissa P. Frizzo
Summary: Amino acid-based ionic liquids exhibit specific properties in thermal stability, heat capacity, antimicrobial activity, and cytotoxicity. It was found in the study that amino acid-based anions can reduce the thermal stability of mono and dicationic AAILs, and AAILs with more carbon chains have lower glass transition temperature.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Thermodynamics
Sai Yagnamurthy, Dibakar Rakshit, Sanjeev Jain, Kaiser Ahmed Rocky, Md Amirul Islam, Bidyut Baran Saha
Summary: Novel activated carbon-based composite adsorbents were studied for thermophysical properties and adsorption characterization with difluoromethane refrigerant, demonstrating significantly higher thermal diffusivities and thermal conductivity in the perpendicular plane of the composites. The adsorption uptake characteristics were gravimetrically studied in the temperature range of 30-70 degrees C, leading to significant enhancements in volumetric cooling energy up to 78% over that of powdered activated carbon. Successful fitting of Dubinin-Astakhov and Toth models for the adsorption isotherms was observed, with the D-A model offering better fits.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Thermodynamics
J. J. Parajo, P. Vallet, M. J. G. Guimarey, A. Santiago, T. Teijera, A. Amigo, L. M. Varela, J. Salgado, M. Villanueva
Summary: Phase transition temperatures of three ionic liquids (ILs) with different alkyl chain length and common nitrate anion were determined in this study. The thermal stability in air and nitrogen atmosphere and the maximum operation temperatures were also investigated. Thermophysical properties such as density, viscosity, thermal conductivity, and heat capacity were determined and compared with water saturated samples. The results showed different tendencies depending on the measured properties.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Chemistry, Physical
Liangyan Hao, Soumya Sridar, Wei Xiong
Summary: Thermodynamic modeling and optimization were conducted to investigate the thermodynamic behavior evolution of KCl-LiClNaCl and KCl-LiCl-NdCl3 systems, as well as their constituent binary systems. The study provides insights into the thermodynamic properties of the electrolyte and the variation of solubility limits of different impurities during the electrorefining process.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Qingguo Zhang, Sihan Feng, Xinyuan Zhang, Ying Wei
Summary: Two novel ionic-liquid-based binary mixture systems were studied over the whole concentration range, and their thermodynamic and transport properties were analyzed using various methods. The results suggest that these mixture systems may have potential applications in the future.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Energy & Fuels
Saeid Faraji, Hemayat Shekaari, Mohammed Taghi Zafarani-Moattar, Masumeh Mokhtarpour
Summary: Energy storage chemicals, such as ionic liquids, have potential for thermal energy storage due to their thermophysical properties. In this project, three protic ionic liquids were synthesized and evaluated for thermal energy storage. The ionic liquid 2-hydroxyethylammonium lactate showed higher heat capacity and thermal conductivity, making it a suitable candidate for thermal energy storage.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Thermodynamics
Zhida Zuo, Yunhao Sun, Xiaohua Lu, Xiaoyan Ji
Summary: The NRTL model was coupled with the Eyring's absolute rate theory to study thermodynamic properties and viscosities of non-aqueous mixtures containing ILs/DESs. Three parameterizing strategies were investigated, showing the possibility of representing thermodynamic and kinetic properties simultaneously. The study illustrated the reliability and potential of the coupled model in representing complex systems.
FLUID PHASE EQUILIBRIA
(2021)
