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901
Investigation of effect of various hot gas atomisation and melting pot temperatures on tin alloy powder product
Published 2022“…While the tin alloy powder generated by hot oxygen gas atomisation had the lowest density (6.83 g/cm3 ), the highest endothermic area (60.41695 area unit) and the most elongated, irregular shape. …”
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902
Investigation of cerium-139 radioisotope adsorption by conducting polymer composite
Published 2018“…Thermodynamic studies indicated that the adsorption is feasible, spontaneous and endothermic in nature. The radiation hardness of polymer composite was also investigated by exposing it to 60Co gamma source. …”
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903
Adsorption isotherm, kinetic and thermodynamic studies of activated carbon prepared from Garcinia mangostana shell
Published 2013“…An evaluation of thermodynamic parameters, namely ΔH°, ΔS° and ΔG°, indicates that the adsorption was feasible, spontaneous and endothermic in nature. The low values of ΔH° and ΔG° correspond to physical adsorption. …”
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904
Effect of sintering temperature and AR glass addition towards physical properties of porcelain clay for sewer pipes application
Published 2018“…While Differential Thermal graph reveals the endothermic shift was produce at 250°C. The maximum volume shrinkage was obtained at 1200°C which is 31.7% with 3 wt% AR glass addition. …”
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905
Grape-like mesostructured silica nanoparticle-decorated single-walled carbon nanotubes: silica growth and dye adsorptivity
Published 2015“…The adsorption was best described by a pseudo-second-order kinetics model and thermodynamically favored the endothermic chemisorption process. These results indicated the potential of S-MSN as an effective new adsorbent for dye adsorption…”
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906
Adsorption affinity and selectivity of 3-ureidopropyltriethoxysilane grafted oil palm empty fruit bunches towards mercury ions
Published 2017“…The calculated thermodynamic parameters indicate an endothermic adsorption process. Adsorption data analysis indicates that the adsorption mechanism may include ion-exchange, complexation, and physisorption interactions. …”
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907
دراسة بعض الخصائص الميكانيكية والحرارية للفرايت – باستخدام الوسا
Published 2013-02-01“…In addition, the drift mobility for tetrahedral and octahedral sites, as well as magnetic dipole moment changes for - bond were determined. The area beneath endothermic peaks was correlated to the weight change TG%. …”
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908
Ketoprofen and benzophenone adsorption on manganese ferrite biochar magnetic nanocomposite from aqueous solution
Published 2022-01-01“…The positive heat of reaction shows that the adsorption process was endothermic. Fourier transform infrared (FTIR) data suggests that the uptake of adsorbates was by physisorption. …”
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909
Investigation of kinetics, isotherms, thermodynamics and photocatalytic regeneration of exfoliated graphitic carbon nitride/zeolite as dye adsorbent
Published 2023-08-01“…The thermodynamic study suggested that the adsorption of MB was a spontaneous and endothermic process. The reusability of g-C3N4/CP1:2 and Ex. g-C3N4/CP in removing of MB (10 ppm, pH = 9) was studied by photocatalytic regeneration under visible irradiation for three consecutive cycles. …”
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910
Behavior of Compacted Magnesium-Based Powders for Energy-Storage Applications
Published 2020-09-01“…Hydride-based systems consist of absorption and desorption reactions that are strongly exothermic and endothermic, respectively. Heat management in the design of hydrogen storage tanks is an important issue, in order to ensure high-level performance in terms of the kinetics for hydrogen release/uptake and reasonable storage capacity. …”
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911
Interstellar Bow Shocks around Fast Stars Passing through the Local Interstellar Medium
Published 2023-01-01“…Turbulent heating in these wakes could produce the observed elevated rotational populations of H _2 ( J ≥ 2) and influence the endothermic formation of CH ^+ in diffuse interstellar gas at T > 10 ^3 K.…”
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912
Fabrication of polyamide-12/cement nanocomposite and its testing for different dyes removal from aqueous solution: characterization, adsorption, and regeneration studies
Published 2022-07-01“…The mode of the adsorption process was endothermic, spontaneous, and physical involving electrostatic attraction. …”
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913
A Radiochemical Study of the Kinetics and Mechanism of Caesium Ion Adsorption on Potassium Copper Nickel Hexacyanoferrate(II)
Published 1999-09-01“…From the various thermodynamic quantities calculated, it was deduced that the ion-exchange process was endothermic. Kinetic studies of caesium adsorption on KCNF were carried out as a function of the particle size of KCNF and of the temperature. …”
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914
BIOSORPTION OF METHYELEN BLUE FROM AQUEOUS SOLUTION USING WASTES MICELIUM OF FUNGAL BIOMASS TYPE WHITE ROT FUNGI
Published 2018-07-01“…The values of heat of sorption bT 0.6062 KJ/mol from Temkin model and mean free energy of sorption E 0.7847 KL/mol from D-R model indicated that the biosorption process was endothermic and physisorption in nature. The results show that dead biomass derived from waste of white rot fungi can be used as a good biosorbent material for removal of methylene blue from wastewater due to its low cost and high efficiency. …”
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915
Preparation and characterization of Allium cepa extract coated biochar and adsorption performance for hexavalent chromium
Published 2023-11-01“…Thermodynamic data revealed that the uptake of Cr (VI) onto the SBCH and BMOJ was an exothermic and endothermic (ΔH: SBCH = − 16.22 kJ mol−1 and BMOJ = 13.74 kJ mol−1), entropy-driven (ΔS: SBCH = 40.96 J K−1 mol−1 and BMOJ = 93.26 J K−1 mol−1) and spontaneous process. …”
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916
Kinetics and Thermodynamics of Adsorption for Aromatic Hydrocarbon Model Systems via a Coagulation Process with a Ferric Sulfate–Lime Softening System
Published 2023-01-01“…Thermodynamic parameters for the coagulation of PNP and naphthalene reveal an endothermic and spontaneous process. River water was compared against lab water samples at optimized conditions, where the results reveal that ions in the river water decrease the removal efficiency (RE; %) for PNP (RE = 28 to 20.3%) and naphthalene (RE = 89.0 to 80.2%). …”
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917
Adsorption of Strontium from an Aqueous Solution by TiO2-Pillared Zeolite
Published 2021-07-01“…A thermodynamic study indicated that strontium adsorption on the TiO2-pillared zeolite was an endothermic process, takes place spontaneously, and is quite stable.…”
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918
Design of a Novel Sericite–Phosphoric Acid Framework for Enhancement of Pb(II) Adsorption
Published 2023-11-01“…The adsorption process was close to physical adsorption for NSB and chemical adsorption for PSB, and both adsorbents were endothermic reactions in nature in that the higher the temperature, the higher the adsorption efficiency. …”
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919
Removal of Some Heavy Metal Cations from Aqueous Solution by Adsorption onto Natural Kaolin
Published 2005-09-01“…Calculation of thermodynamic parameters such as the standard enthalpy (ΔH 0 ), Gibbs free energy (ΔG 0 ) and entropy (ΔS 0 ) showed that the adsorption of the heavy metal ions studied onto kaolin was an endothermic process which was favoured at higher temperatures. …”
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920
An Experimental Study of Sintered (Ni-Cr-xAl2O3) Composites
Published 2016-09-01“…DSC results show a clear one exothermic and one endothermic reaction were occurred during the heating cycle. …”
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