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1641
Use of <em>Opuntia ficus-indica</em> Fruit Peel as a Novel Source of Mucilage with Coagulant Physicochemical/Molecular Characteristics
Published 2022-09-01“…The mucilage exhibited two endothermic transitions, with a decomposition temperature in uronic acid of 423.10 °C. …”
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1642
Removal of fluoride in groundwater by adsorption using hydroxyapatite modified Corbula trigona shell powder
Published 2022-11-01“…The adsorption process was spontaneous, endothermic, and irreversible in nature. The best results with 89% fluoride removal were recorded at pH 7.5 ± 0.1 in 175 min with 5 g/L modified-CTSP. …”
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1643
Ballistic Performance, Thermal and Chemical Characterization of Ubim Fiber (<i>Geonoma baculifera</i>) Reinforced Epoxy Matrix Composites
Published 2023-07-01“…The DSC results of the composites indicate endothermic peaks between 54 and 56 °C, and for the ubim fibers, at 71 °C. …”
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1644
Effective removal of Cr(VI) and Pb(II) ions from mining wastewater using eco-friendly synthesized magnesium oxide nanoparticles incorporated rice husk ash
Published 2024-04-01“…Thermodynamic results indicated that the adsorption process was characterized by endothermicity, spontaneity and chemisorption controlled. …”
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1645
Rice Husk Research: From Environmental Pollutant to a Promising Source of Organo-Mineral Raw Materials
Published 2021-07-01“…Three main peaks are recorded during the decomposition: hemicellulose at 200 °C, cellulose at 265 °C, and lignin at 350–360 °C. This process is endothermic. However, above of 300 °C the exothermic reactions associated with the formation of new substances and condensation processes in the solid residue begin to prevail. …”
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1646
The Demonstration of the Superiority of the Dual Ni-Based Catalytic System for the Adjustment of the H<sub>2</sub>/CO Ratio in Syngas for Green Fuel Technologies
Published 2020-09-01“…With the sequence of the catalysts located in the single reactor, the endothermic combined steam and CO<sub>2</sub> reforming of methane (CSCRM) reaction and the exothermic ultra-high-temperature water–gas shift (UHT-WGS) reaction work continuously. …”
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1647
The simultaneous removal of cadmium (II) and lead (II) from wastewater with the application of green synthesized magnesium silicate hydrate
Published 2023-01-01“…Cd(II) and Pb(II) adsorption were spontaneous and endothermic and well fitted with the pseudo-second-order kinetic and Langmuir isotherm adsorption models. …”
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1648
Studies on Kinetics, Isotherms, Thermodynamics and Adsorption Mechanism of Methylene Blue by N and S Co-Doped Porous Carbon Spheres
Published 2021-07-01“…The adsorption of MB by N,S-PCSs-1 was a spontaneous, endothermic, and random process based on the thermodynamics analyses. …”
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1649
Ultrathin graphite sheets stabilized stearic acid as a composite phase change material for thermal energy storage
Published 2021“…All samples had a good thermal stability below 180 °C, with the endothermic phase change peak being recorded between 53.60 and 53.12 °C range, and the melting and freezing enthalpies of SA/UGS-5000 were 113.7 and 112.9 J g−1, respectively. …”
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Journal Article -
1650
Kinetics and Adsorption Equilibrium Study of Free Fatty Acid (FFA) from Crude Palm Oil (CPO) on Anionic Resin
Published 2022“…The results show that the reaction is endothermic, spontaneous, and feasible. © 2022, Gadjah Mada University. …”
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1651
Kinetic and thermodynamic studies of the adsorption of heavy metals on to a new adsorbent: coal mine drainage sludge
Published 2010“…The positive values obtained for both the standard enthalpy change, Î0, and the standard entropy change, ÎS0, suggest that the adsorption of Cu(II) and Zn(II) on to the CMDS was an endothermic reaction and that randomness increased at the solid-liquid interface during the adsorption of Cu(II) and Zn(II) on to the CMDS. …”
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1652
Chemical equilibrium and kinetic study of the esterification of pure and deluted acrylic acid with 2 ethyl hexanol catalysed by amberlyst 15
Published 2014“…The increase of equilibrium conversion with the temperature indicated the endothermicity of the reaction. Temperature was the most significant variable that affected the conversion and yield. …”
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Thesis -
1653
Hydrogen production from CO2 reforming of methane over cobalt-based catalysts
Published 2015“…However, dry reforming is highly endothermic, and suffers from carbon-induced catalyst deactivation. …”
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Undergraduates Project Papers -
1654
Novel Modified ZSM-5 as an Efficient Adsorbent for Methylene Blue Removal
Published 2016“…Adsorption processes were endothermic with DH value 48.69 and 29.37 kJ mol�1 for NZVI/ZSM and NZVI/SuZSM, respectively. …”
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1655
Effect of different solvent system on oil extraction from immobilized microalgae cells of Chlorella vulgaris: kinetic and thermodynamic studies
Published 2021“…The thermodynamic parameters were calculated to be ΔH = 0.111 kJ/mol, positive values for ΔS, and negative values for ΔG for all conditions for the heptane system indicating the process was endothermic, irreversible, and thermodynamically spontaneous. …”
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Conference or Workshop Item -
1656
Adsorption Performance of Amino Functionalized Magnetic Molecular Sieve Adsorbent for Effective Removal of Lead Ion from Aqueous Solution
Published 2021-09-01“…In addition, the thermodynamic investigations (Δ<i>G</i> < 0, Δ<i>H</i> > 0, Δ<i>S</i> > 0) demonstrated that the adsorption for Pb<sup>2+</sup> with the prepared adsorbent was endothermic and spontaneous. Moreover, the prepared adsorbent showed superior anti-interference performance and reusability, implying the potential application of the adsorbent in actual water treatment. …”
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1657
Peningkatan Kelarutan Ketokonazol dengan Teknik Dispersi Padat Menggunakan Eudragit® E 100
Published 2012-12-01“…This result was also supported by spectrum of infrared and endothermic peak of differential scanning calorimetry. …”
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1658
Synthesis and Application of MnO-Fe<sub>2</sub>O<sub>3</sub> Nanocomposites for the Removal of <sup>137</sup>Cs and <sup>60</sup>Co Radionuclides from Artificial Radioactive Aqueou...
Published 2023-11-01“…Moreover, a thermodynamic analysis revealed that the adsorption process was spontaneous for both target metals and the adsorption of <sup>60</sup>Co was endothermic, whereas the adsorption of <sup>137</sup>Cs was exothermic.…”
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1659
Mechanism and performances of methyl orange and Congo red adsorption by MnO2–PVP composite
Published 2024-03-01“…The thermodynamic investigations confirm that the dye adsorption process was endothermic in nature. HIGHLIGHTS The polyvinyl pyrrolidone (PVP)/MnO2 composite was synthesized by the solvothermal method.; The adsorption capacity of PVP/MnO2 was higher than plain metal oxide.; Detail adsorption mechanism was studied by kinetic models.; PVP/MnO2 could be used as a candidate in the water filtration assembly of dyes.; Detail characterization of the plain and composite metal oxides was performed…”
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1660
Fat accumulation in striped hamsters (Cricetulus barabensis) reflects the temperature of prior cold acclimation
Published 2024-02-01“…Abstract Background Proper adjustments of metabolic thermogenesis play an important role in thermoregulation in endotherm to cope with cold and/or warm ambient temperatures, however its roles in energy balance and fat accumulation remain uncertain. …”
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Article