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Chemical Thermodynamics and Thermal Analysis
Scopus
ISSN 2667-3126 · Elsevier · 350 artikel di indeks
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Artikel Jurnal
Investigation of thermal kinetics and phase transformation in Ag-modified anatase–bronze TiO2 nanostructures
In this work, the non-isothermal thermo-kinetics and phase transition processes in mixed-phase anatase-bronze titanium dioxide (TiO2) (MP–TiO2) nanostructures and Ag-modified MP–TiO2 nanostructures are explored. The samples are prepared by a solution-controlled precipitation method, in which the…
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Artikel Jurnal
Isoconversional methods of thermal analysis yield activation energies that lack physical meaning for Turnbull-Fisher kinetics: Case study of crystallization of piperine from the melt
Differential scanning calorimetry (DSC) is a useful tool for studying the nucleation rate-limited kinetics of crystallization from the melt. However, applying popular isoconversional methods of thermal analysis to such calorimetric data often yields incorrect values of the activation energy, Ea…
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Physico-chemical study on the solvation characteristics of sodium gluconate in aqueous β-cyclodextrin solutions at T= (298.15-318.15) K
Densities, viscosities and ultrasonic speeds of sodium gluconate in various aqueous molal solutions [m = (0.005–0.020) mol.kg-1] of β-cyclodextrin were measured at T = (298.15–318.15) K and ambient pressure P = 101 kPa. Several volumetric, viscometric, thermoacoustic and thermodynamic properties…
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Artikel Jurnal
Thermodynamic study of the Fe-In-Se system by the electromotive force method
This work presents the results of a study on solid-phase equilibria within the FeSe2–FeIn2Se4–In2Se3–Se compositional region of the system Fe-In-Se and the thermodynamic properties of FeIn2Se4 and FeSe2 compounds using X-ray diffraction analysis (XRD), differential thermal analysis (DTA) and…
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Artikel Jurnal
Temperature influence on the solvation, transport, and dielectric properties of the {NaPF₆–dimethyl sulfoxide} electrolyte system used in sodium-ion battery technology: A molecular dynamics approach and DFT study
In the current context of the energy transition, sodium-ion batteries are emerging as a promising alternative to lithium-ion batteries, mainly due to the natural abundance of sodium and its lower cost. This work focuses on the study of solvation properties, ionic mobility, and dielectric behavior…
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Artikel Jurnal
Characterization of tea factory waste biomass via TGA: Pyrolysis kinetics and thermal behavior
This study investigates the pyrolysis kinetics and thermal degradation behavior of Tea Factory Waste (TFW) biomass using thermogravimetric analysis (TGA). Considering the environmental concerns associated with the disposal of large volumes of tea waste, this work explores its potential as a…
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Artikel Jurnal
Ultrasonic interferometric analysis of molecular interactions in nano-coatings on metallic surfaces: A review
The rapid development of nanotechnology has allowed the creation of nano-engineered coatings that adequately enhance the functional performance of metallic surfaces by offering corrosion resistance, self-cleaning capability, and antimicrobial durability. The long-term efficiency of such coatings…
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Viscosities and thermodynamics of viscous flow of N-methylformamide/N-methylacetamide + polyethylene glycol 200/300/400 binary systems: Experimental and theoretical exploration
The viscosities of binary mixtures of N-methylformamide (NMF)/N-methylacetamide (NMA) with polyethylene glycols (PEG 200/300/400), including those of pure liquids, have been measured across the entire range of composition at temperatures, T/K= (293.15 – 323.15) and atmospheric pressure. The…
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Artikel Jurnal
Validated spectrophotometric method for the determination of cefepime in pure and pharmaceutical foumulation
A simple, precise, rapid sensitive and accurate Spectrophotometric method has been developed for the estimation of Cefepime as pure form and in its formulation. This method is based on reductive complex reaction of Cefepime with 2,2’-Bipyridine at pH - 4 in the presence of Ferric chloride to form…
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Artikel Jurnal
Simulation and mathematical analysis of L-Cysteine's transfer properties and solvation behavior in mixed water–alcohol solutions
We investigated preferential solvation of L-Cystine (L-Cys) in two aqueous co-solvent systems (methanol (MeOH) and ethanol (EtOH)), utilizing the mole percentage solubility data provided. The inverse Kirkwood-Buff integrals (IKBI) technique was applied over the temperature range of 293.15–323.15 K…
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Artikel Jurnal
Thermo-acoustic and spectroscopic approach for understanding molecular interactions between glycolic acid and B Vitamins
This study examines the thermodynamic properties of ternary mixtures containing D-Panthenol, niacin, and glycolic acid. At 0.1 MPa, experiments were conducted at temperatures ranging from 288.15 K to 318.15 K. The apparent and partial isentropic compression per mole was calculated using sound speed…
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Artikel Jurnal
CMC range determination by the second derivative of the Gibbs adsorption equation
The purpose of this work is to develop a reproducible method to determine the critical micelle concentration (CMC) interval in surfactant solutions, eliminating the need for observer-dependent data selection, which is common in approaches based on surface equations of state such as Langmuir…
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Artikel Jurnal
Ensemble machine learning models for ternary electrolyte viscosity prediction
Accurate viscosity prediction in ternary electrolyte systems is essential for oil and gas drilling, geothermal operations, and brine processing. This comprehensive study compared three boosting-based ensemble machine learning algorithms - Gradient Boosting Regressor (GB), Extra Gradient Boosting…
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Thermal performance, challenges and applications on water-based hybrid nanofluids: A complete review
Water-based hybrid nanofluids show promise as improved heat-transfer fluids since they may perform better than conventional base fluids and mono nanofluids. This review critically examines their thermophysical, rheological, and transport qualities, incorporating experimental studies, theoretical…
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Experimental and numerical investigation of gas hydrate formation dynamics under variable pressure and temperature conditions
Gas hydrates are non-stoichiometric crystalline compounds formed by the entrapment of gas molecules such as methane within hydrogen-bonded water cages. They have important applications in flow assurance, gas storage, transportation, and carbon dioxide sequestration. This study experimentally…
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QHTD Framework: integrating CALPHAD and decision-support tools for quantitative alloy and process design
Heat treatment and alloy design remain dominated by qualitative rules despite mature computational thermodynamics. This article presents the Quantitative Heat Treatment Design (QHTD) Framework—a methodological framework that provides a four-stage decision workflow integrating CALPHAD…
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Artikel Jurnal
Densities and viscosities of binary liquid mixtures of chlorobenzene,
The present paper reports experimental densities and kinematic viscosities of ten binary mixtures of 1-hexanol, ethylbenzene, octane, p -xylene, and chlorobenzene at 293.15 K and 298.15 K. The experimental data were obtained using Cannon-Ubbelohde viscometers and Anton-Paar DMA 60 density meter…
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Artikel Jurnal
Phase equilibria of the K₂SO₄–KCl in water–methanol mixed solvent for selective K₂SO₄ recovery via antisolvent crystallization
The present work reports the phase equilibria of the K₂SO₄–KCl in water–methanol mixed solvent system at 298.15 K using the isothermal solution saturation method. Solubility and solution density were measured, while the equilibrium solid phases were identified by X-ray diffraction. From…
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Artikel Jurnal
Dual roles of sugar alcohols in aqueous solutions: A review of volumetric and ultrasonic evidence
This review presents a comparative analysis of sugar alcohols, highlighting their dual roles as solutes in aqueous solutions and as solvents in other media, with emphasis on how temperature, concentration, molecular structure, and cosolute composition influence polyol–solvent interactions. Sugar…
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Artikel Jurnal
Geological hydrogen storage in South Asian sedimentary basins thermodynamic considerations, geotechnical challenges, and energy perspectives
Geological hydrogen storage (GHS) is a critical technology for enabling large-scale, low-carbon energy systems in South Asia within the water–energy–carbon nexus. This review evaluates subsurface hydrogen storage potential across key sedimentary basins in India, Pakistan, Bangladesh, and Sri Lanka…