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881
Investigation of the Critical Behavior, Magnetocaloric Effect and Hyperfine Structure in the Fe<sub>72</sub>Nb<sub>8</sub>B<sub>20</sub> Powders
Published 2020-10-01“…The Mössbauer spectrometry results showed the formation of nanostructured Fe(B) and Fe(Nb) solid solutions, Fe<sub>2</sub>B boride, and an amorphous phase. The endothermic and exothermic peaks that are observed in the DSC curves might be related to the Curie temperature, and the crystallization of the amorphous phase, respectively. …”
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882
Ecofriendly Green Synthesis of Copper (II) Oxide Nanoparticles Using <i>Corchorus olitorus</i> Leaves (Molokhaia) Extract and Their Application for the Environmental Remediation of...
Published 2022-12-01“…Moreover, the catalytic degradation of the direct violet dye using the ecofriendly green CuO NPs was studied kinetically and thermodynamically and the results showed that the catalytic degradation process agreed well with the pseudo-second-order kinetic model and the process was spontaneous and endothermic in nature. Finally, high catalytic degradation of the direct violet dye was observed when the eco-friendly prepared green CuO NPs were placed in real water samples.…”
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883
Preparation and Pore Structure of Energy-Storage Phosphorus Building Gypsum
Published 2022-10-01“…The heat energy further captured by energy-storage phosphorous building gypsum in the endothermic and exothermic stages is 28.19 J/g and 28.64 J/g, respectively, which can be used to prepare energy-saving building materials.…”
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884
Safranin O dye removal using Senna fistula activated biomass: Kinetic, equilibrium and thermodynamic studies
Published 2022-12-01“…The thermodynamic parameter shows that the sorption of Safranin O on Senna fistula activated carbon was feasible, spontaneous and endothermic. Senna fistula-activated carbon was found to be cheap and efficient adsorbents for the removal of Safranin O dye from aqueous solutions. …”
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885
Numerical Simulation of a 10 kW Gas-Fueled Chemical Looping Combustion Unit
Published 2022-03-01“…The temperature in the air reactor increases with height owing to the exothermic reaction of the xidation of the oxygen carrier, while the temperature in the fuel reactor decreases with height due to the endothermic reaction. The oxidation level of the oxygen carrier is obtained by simulation, which is hard for measurement, and the difference between the inlet and outlet is 0.065. …”
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886
Evaluation of Kinetic, Equilibrium and Thermodynamics of Cationic Ion Using Agro-Industrial Residues of Plantain (<i>Musa paradisiaca</i>)
Published 2022-04-01“…The thermodynamic parameters determine that the process is endothermic, with strong biomass–metal bonds that are favorable and spontaneous as the temperature increases. …”
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887
Removal of tetracycline from water using ethylenediamine-modified magnetic chitosan
Published 2023-01-01“…Thermodynamic analysis revealed that adsorption process was both endothermic and spontaneous. The regeneration experiment suggested that the adsorbent possessed excellent reusability for further use. …”
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888
Thermodynamic analysis of the solubility of progesterone in 1-octanol + ethanol cosolvent mixtures at different temperatures
Published 2023-02-01“…The solution process of progesterone is endothermic and is driven by the enthalpy of solution. …”
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889
Optimum Pressure Distribution in Design of Cryogenic NGL Recovery Processes
Published 2012-09-01“…Adsorption of aniline on adsorbent was chemical adsorption and high temperature was favourable to endothermic chemisorption process. In addition, the kinetic studies were also carried out. …”
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890
Recovery of W(VI) from Wolframite Ore Using New Synthetic Schiff Base Derivative
Published 2023-04-01“…The sorption process of the W(VI) ions is spontaneous due to the negative value of ∆<i>G</i>° calculated for all temperatures, while the positive value of ∆<i>H</i>° proves that the adsorption of the W(VI) ions adsorption on HNAP/QA is endothermic. The positive value of ∆<i>S</i>° suggests that the adsorption occurs randomly. …”
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891
Hydrothermally Treated Banana Empty Fruit Bunch Fiber Activated Carbon for Pb(II) and Zn(II) Removal
Published 2016-09-01“…Thermodynamic characterization revealed that the equilibrium system was endothermic and spontaneous.…”
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892
Exploring the Iron Oxide Functionalized Biobased Carbon-silica-polyethyleneimine Composites for Hexavalent Chromium Removal from Dilute Aqueous Solutions
Published 2021-11-01“…Δ<i>G</i>° (−3 to −12 kJ/mol) and Δ<i>H</i>° (46, 12 and 5 kJ/mol) values affirmed that the adsorption of Cr(VI) was spontaneous and endothermic and dominated by chemical interactions.…”
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893
Fabrication of Novel Bentonite-Anthracite@Zetag (BT-An@Zetag) Composite for the Removal of Arsenic (V) from an Aqueous Solution
Published 2022-11-01“…The estimated enthalpy (H°) indicates that the adsorption process is both chemical and endothermic.The calculated free energy (G°) indicates that the reaction is nonspontaneous. …”
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894
Experimental and Numerical Studies on the Effect of Lithium-Ion Batteries’ Shape and Chemistry on Heat Generation
Published 2022-12-01“…All batteries displayed exothermic behavior during a lower SOC that gradually became endothermic behavior at around 0.4 SOC onwards.…”
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895
Investigation of Temperature-Dependent Magnetic Properties and Coefficient of Thermal Expansion in Invar Alloys
Published 2022-02-01“…Also, the differential thermal analysis (DTA) shows endothermic and exothermic reactions represent crystalline transitions, which could possibly cause the abrupt change of magnetic properties and thermal expansion coefficient of materials. …”
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896
DYNAMICS DESCRIPTION AND THERMODYNAMICS ANALYSIS OF POLYSACCHARIDES EXTRACTION PROCESS FROM FOXTAIL MILLET
Published 2022-06-01“…The enthalpy value and entropy value of the extraction process was 25.92 and 100.06 J·mol-1·K-1 respectively, and the Gibbs free energy value were all less than zero, indicating that the extraction process was an endothermic, entropy increasing, spontaneous and irreversible process. …”
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897
Synthesis of Mg-Al Hydrotalcite Clay with High Adsorption Capacity
Published 2021-11-01“…Thermodynamic calculations propose that the adsorption of sulfonated lignite was spontaneous, endothermic, and a thermodynamically feasible process.…”
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898
Impregnated Polymeric Sorbent for the Removal of Noble Metal Ions from Model Chloride Solutions and the RAM Module
Published 2024-03-01“…Based on thermodynamic considerations, their sorption proved to be endothermic, as the values of ΔH° > 0. Sorption was spontaneous and favourable (ΔG° < 0). …”
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899
3D printed hierarchical spinel monolithic catalysts for highly efficient semi-hydrogenation of acetylene
Published 2022“…Porous monolithic catalysts with high specific surface areas, which can not only facilitate heat/mass transfer, but also help to expose active sites, are highly desired in strongly exothermic or endothermic gas-solid phase reactions. In this work, hierarchical spinel monolithic catalysts with a porous woodpile architecture were fabricated via extrusion-based three-dimensional (3D) printing (direct ink writing, DIW in brief) of aluminate-intercalated layered double hydroxide (AI-LDH) followed by low temperature calcination. …”
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Journal Article -
900
Modeling heat and degree of gelation for methyl cellulose hydrogels with NaCl additives
Published 2015“…Methyl cellulose (MC) hydrogels are thermoreversible physical hydrogels and their gelation is an endothermic process. A model consisting of a generalized expression for two bell-shape curves was formulated to describe and capture enthalpy changes that take place during the gelation of an aqueous solution of MC, SM4000, in the presence of sodium chloride, NaCl, in different concentrations. …”
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