Results 191 to 200 of about 48,403 (247)
Catalytic Hydrothermal Liquefaction of Polyethylene With Pt/C to Tune Product Selectivity
CleanMat, EarlyView.Pt/C‐catalyzed hydrothermal liquefaction of polyethylene in supercritical water enables time‐dependent control of product selectivity, producing paraffin‐rich oils at shorter reaction times and aromatic‐enriched products at longer times without external hydrogen. ABSTRACT Hydrothermal liquefaction (HTL) represents a promising thermochemical pathway for
Taofeng Lu, Wan‐Ting Chen
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The Effect of Electrolyte pH and Impurities on the Stability of Electrolytic Bicarbonate Conversion
ChemSusChem, Volume 18, Issue 6, March 15, 2025.The performance of bicarbonate electrolysis is largely controlled by the electrolyte inlet pH, the distance between the membrane and electrode, and the impurities present in the electrolyte. By complexing trace metal ions with ethylenediaminetetraacetic acid (EDTA), stability can significantly be improved and longer term operation can be achieved ...
Iris Burgers +3 more
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Investigations Into the Metabolism and Elimination of Tesofensine in Human Urine
Drug Testing and Analysis, EarlyView.This study investigated tesofensine metabolism and urinary elimination after a single 483 μg intake via a dietary supplement. In six volunteers, urine was collected up to 659 h. LC‐HRMS/MS identified four tentative metabolites; maximum urinary concentrations reached 4 ng/mL within 4–48 h.
O. Krug, A. Thomas, M. Thevis
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Journal of Colloid and Interface Science, 2010
Water vapor adsorption/desorption isotherm studies were performed on high volatile bituminous B coal and lignite to investigate the behavior of water on coal. The characterization of water sorption was studied by kinetic and equilibrium data, at a temperature of 298 K and a relative vapor pressure up to 0.95.
Philippe Behra
exaly +4 more sources
Water vapor adsorption/desorption isotherm studies were performed on high volatile bituminous B coal and lignite to investigate the behavior of water on coal. The characterization of water sorption was studied by kinetic and equilibrium data, at a temperature of 298 K and a relative vapor pressure up to 0.95.
Philippe Behra
exaly +4 more sources
Water sorption measured by sorption calorimetry
Thermochimica Acta, 1995A calorimetric method is described for the determination of adsorption and desorption of adsorptives that are liquid at room temperature, focussing on the sorption of water. Together with the isotherms, the sorption thermodynamics is determined in one experiment by determining the heat flow needed for generating the vapour and the heat flow generated ...
Duisterwinkel, A.E. +1 more
openaire +2 more sources
Nonequilibrium Sorption of Water in Polylactide
Macromolecules, 2012The sorption of water in polylactide (PLA) was measured at various vapor activities (0–0.85) and temperatures using a number of experimental techniques, including quartz spring microbalance (QSM), quartz crystal microbalance (QCM), and in situ time-resolved Fourier transform infrared-attenuated total reflectance (FTIR-ATR) spectroscopy. Additionally, a
E. M. Davis +4 more
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Water sorption in a dextran gel
Carbohydrate Research, 1975The state of adsorbed water in a dextran gel has been investigated by near-infrared gravimetric-adsoprtion techniques. Water-vapor adsorption (desorption) isotherms at three temperatures are reported. The calculated sorption heats are found to be markedly temperature-dependent as well as dependent on the coverage.
J A, Texter, R, Kellerman, K, Klier
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The diffusion and sorption of water in zeolites—I. Sorption
Journal of Physics and Chemistry of Solids, 1961Abstract Equilibrium sorption measurements have been made for D2O and H2O in the crystalline zeolites chabazite, gmelinite and heulandite, at relative coverages greater than θ = 0.85. The water contents, the shape of the isotherms, the isosteric heats and the partial molar entropies are almost identical for H2O in chabazite and gmelinite; in ...
R.M. Barrer, B.E.F. Fender
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Industrial & Engineering Chemistry, 1938
Abstract THE presence of water is one of the principal causes of electrical instability in dielectric materials, often resulting in large variations in direct current resistance, dielectric constant, and power factor. A knowledge of the laws governing the sorption of water is therefore of considerable interest to the electrical and ...
R. L. Taylor, A. R. Kemp
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Abstract THE presence of water is one of the principal causes of electrical instability in dielectric materials, often resulting in large variations in direct current resistance, dielectric constant, and power factor. A knowledge of the laws governing the sorption of water is therefore of considerable interest to the electrical and ...
R. L. Taylor, A. R. Kemp
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