Showing 301 - 320 results of 2,155 for search '"endotherms"', query time: 0.08s Refine Results
  1. 301

    Adsorption of Mono Substituted Nitro Phenols From Aqueous Solution on the Zemeej Surface at Different Temperatures by Entisar E. AL-Abodi

    Published 2017-04-01
    “…The adsorption for all materials was endothermic as shown from ΔH values and explained through the porous nature of the surface, the remaining thermodynamic functions ΔG and ΔS were also calculated at all temperatures for all adsorbents which indicate that the randomness, finally the results indicate that the orientation on NO2 group to para position acts to decrease the quantity of adsorption …”
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    Article
  2. 302

    Surface Modifications of Superparamagnetic Iron Oxide Nanoparticles with Polyvinyl Alcohol and Activated Charcoal as Methylene Blue Adsorbents by Linh Doan

    Published 2023-09-01
    “…Based on thermodynamics parameters, the adsorption process can be considered to be spontaneous endothermic physisorption. Kinetics studies show that the pseudo-second-order model was the best-fitted model. …”
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    Article
  3. 303

    Sonicating for the Uptake of Paracetamol from Solution by Activated Carbon from Oak: Kinetics, Thermodynamics, and Isotherms by Alaa M. Al-Ma’abreh, Gada Edris, Mike Kh. Haddad

    Published 2023-01-01
    “…The thermodynamic experiments revealed the endothermic nature of PA adsorption onto ACO. Under the investigated optimal conditions, the adsorption capacity of PA onto ACO was found to be 97.1 mg. …”
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    Article
  4. 304

    Time-dependent wave packet study of the N++H-2 reaction by Russell, C, Manolopoulos, D

    Published 1999
    “…In addition to providing results that can be used to test more approximate theories, these calculations are used to shed light on a number of key issues concerning the reaction, including the correct value of the reaction endothermicity, the reactivity of excited H2 rotational states, and the lifetimes of the intermediate NH2+ complexes that are formed in collisions of N+ with H2(v=0) and H2(v=1). …”
    Journal article
  5. 305

    Thermo-kinetics of lipase-catalyzed synthesis of 6-O-glucosyldecanoate. by Gumel, A.M., Annuar, M.S., Heidelberg, T., Chisti, Y.

    Published 2011
    “…The esterification reaction was endothermic with activation energy in the range of 60-67kJmol(-1). …”
    Article
  6. 306

    Thermal assessment of kpata fireclay for refractory applications by Amkpa, Job Ajala, Badarulzaman, Nur Azam

    Published 2018
    “…The DTA revealed that there were exothermic and endothermic material reactions.The Kpata fireclay also had a thermal conductivity of 0.33 K (W/m.k). …”
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    Article
  7. 307

    Investigation of inert gas injection in steam reforming of methane: energy by Riaz, A., Farsi, A., Zahedi, Gholamreza, Abd. Manan, Zainuddin

    Published 2011
    “…Synthesis gas manufacturing by steam reforming of hydrocarbons is an important industrial process. High endothermic nature of the process makes it one of the most cost and heat intensive processes. …”
    Article
  8. 308

    Investigation of inert gas injection in steam reforming of methane : energy by Zahedi, Gholamreza, Riaz, Amjad, Farsi, Ali, Abdul Manan, Zainuddin

    Published 2011
    “…Synthesis gas manufacturing by steam reforming of hydrocarbons is an important industrial process. High endothermic nature of the process makes it one of the most cost and heat intensive processes. …”
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    Conference or Workshop Item
  9. 309

    Effects of roasting and NH4Cl catalysis on the direct electrotransformation products from an AlCl3 solution by Xiuxiu Han, Ting-an Zhang, Guozhi Lv, Xijuan Pan, Daxue Fu

    Published 2021-01-01
    “…At temperatures between 250 °C–500 °C, the nitrogen-containing substances were removed in another endothermic reaction (reaction order, n2 = 0.4697; activation energy, E2 = 5.316J mol ^−1 ). …”
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    Article
  10. 310

    On the origins of endothermy in amniotes by Mathieu G. Faure-Brac, Holly N. Woodward, Paul Aubier, Jorge Cubo

    Published 2024-04-01
    “…We discuss that endothermy should be regarded as a collection of acquisitions forming an “endothermic engine” and that studies aimed at inferring endothermy should consider as many of these features as possible.…”
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    Article
  11. 311

    Literature review: state-of-the-art hydrogen storage technologies and Liquid Organic Hydrogen Carrier (LOHC) development by D’Ambra Florian, Gébel Gérard

    Published 2023-01-01
    “…LOHC (Liquid Organic Hydrogen Carrier) improves the storage and handling of hydrogen by covalently binding it to a liquid organic framework through catalytic exothermic hydrogenation and endothermic dehydrogenation reactions. LOHCs are oil-like materials that are compatible with the current oil and gas infrastructures. …”
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    Article
  12. 312

    Self-Nitrogen-Doped Biochar Derived from Soybean cake for Rhodamine B Removal Prepared via Simple Carbonization by Xinyu Zhang, Chao Yang, Tingwei Zhang, Jiaqi Guo, Yusheng Gan, Haibiao Wu, Mohammad Rizwan Khan, Huining Xiao, Junlong Song

    Published 2023-09-01
    “…The results of thermodynamic parameters indicate that Rhodamine B adsorption on SCB is an endothermic, entropy-increasing, and spontaneous process.…”
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    Article
  13. 313

    Analytical Investigation of the Possible Chemical Interaction of Methyldopa with Some Reducing Carbohydrates Used as Pharmaceutical Excipients by Mohammad Reaz Siahi, Soma Rahimi, Farnaz Monajjemzadeh

    Published 2018-11-01
    “…Results: The DSC curves indicated the elimination of the melting endotherm of methyldopa in the binary mixtures. A new peak at 1719 cm-1 was observed in the FTIR spectra that can be attributed to the loss of type one amine functionality. …”
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    Article
  14. 314

    Rhamnolipid Micellization and Adsorption Properties by Yi Zhang, Tess L. Placek, Ruksana Jahan, Paschalis Alexandridis, Marina Tsianou

    Published 2022-09-01
    “…Rhamnolipid micellization in water is endothermic; the CMC (critical micellization concentration) of di-rhamnolipid is lower than that of mono-rhamnolipid, and both CMCs decrease upon NaCl addition. …”
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    Article
  15. 315

    Adaptation Mechanisms of Yak (<i>Bos grunniens</i>) to High-Altitude Environmental Stress by Wondossen Ayalew, Min Chu, Chunnian Liang, Xiaoyun Wu, Ping Yan

    Published 2021-08-01
    “…The combined effects of hypoxia and cold stress impose severe physiological challenges on endothermic animals. The yak is integral to the livelihood of the people occupying the vast, inhospitable Qinghai–Tibetan plateau and the surrounding mountainous region. …”
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    Article
  16. 316

    Preparation of Tetra Pak-Based Hydrochars for Cleaning Water Polluted by Heavy Metal Ions: Physicochemical Properties and Removal Mechanism by Evelyn Mirelle Valdés-Rodríguez, Leonardo Frias-Gasparri, Didilia Ileana Mendoza-Castillo, Verónica Janeth Landin-Sandoval, Adrián Bonilla-Petriciolet

    Published 2023-01-01
    “…The removal of these heavy metal ions using Tetra Pak hydrochars was an endothermic and multi-ionic process. Hydrothermal carbonization is a promising approach to improve Tetra Pak waste management, generating materials with interesting properties for addressing the problem of wastewater and industrial effluent depollution.…”
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  17. 317
  18. 318

    Adsorption and separation of Cs(I) and Ba(II) from aqueous solution using zinc ferrite-humic acid nanocomposite by M. I. A. Abdel Maksoud, G. A. Murad, W. F. Zaher, H. S. Hassan

    Published 2023-04-01
    “…The temperature parameter was also studied, and the adsorption reaction was spontaneous and endothermic. The maximum separation between two ions was achieved at pH 5 (αCs/Ba = 3.3).…”
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    Article
  19. 319

    Removal of Cadmium Ions from Water by Synthetic Niobia by Érika S. Melo, Kele T.G. Carvalho, Luiz C.A. Oliveira

    Published 2011-08-01
    “…The thermodynamic parameters for the studied system showed that the adsorption process was spontaneous and endothermic. The results obtained suggest that niobia may be employed as an efficient material for the removal of Cd 2+ ions from aqueous solution.…”
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    Article
  20. 320

    Biomass torrefaction: Modeling of reaction thermochemistry by Bates, Richard B, Ghoniem, Ahmed F

    Published 2016
    “…The second stage is associated with the decomposition of the remaining lignocellulosic components, completes over a longer period, and is predicted to be either endothermic or exothermic depending on the temperature and assumed solid properties. …”
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