Results 61 to 70 of about 165,932,823 (169)
To convert a calculated value of the enthalpy of formation from the gas phase to room temperature, the enthalpy of sublimation and vaporization are needed.
Thomas M. Klapötke (711234) +2 more
core +1 more source
Fabrication process of phase change microcapsules using a Pickering emulsion template method and their subsequent applications. The increasing demand for efficient thermal energy storage systems has driven the development of phase change material microcapsules (PCMMs), which provide high energy‐storage density, reversible phase change, and reduced ...
Ziyan Li +4 more
wiley +1 more source
Accelerated predictions of the sublimation enthalpy of organic materials with machine learning
The sublimation enthalpy, ΔHsub, is a key thermodynamic parameter governing the phase transformation of a substance between its solid and gas phases. This transformation is at the core of many important materials' purification, deposition, and etching ...
Yifan Liu +6 more
doaj +1 more source
Eighty‐eight novel energetic compounds based on 5‐H‐imidazo‐[4,5‐c]pyridazine and 1,2,4‐triazolo‐[4,3‐a]pyrazine scaffolds, functionalized with nitro, nitramino, azido, and nitrate ester groups, were theoretically evaluated by DFT. Nine candidates surpassed RDX in density and detonation performance while maintaining acceptable impact sensitivity.
Luciana Amorim da Silva +3 more
wiley +1 more source
Enthalpy of Sublimation in the Study of the Solid State of Organic Compounds. Application to Erythritol and Threitol [PDF]
The enthalpies of sublimation of erythritol and l-threitol have been determined at 298.15 K by calorimetry. The values obtained for the two diastereomers differ from one another by 17 kJ mol-1.
Eusébio, M. Ermelinda +3 more
core +1 more source
Abstract In cryogenic CO2 desublimation systems where phase change dominates both heat transfer and separation, conventional lumped thermal‐resistance treatments embed interfacial latent heat into an overall heat‐transfer coefficient, obscuring how phase‐change heat is partitioned between the gas phase and the coolant and limiting diagnostic insight ...
Shengwen Xiao +2 more
wiley +1 more source
A first‐of‐its‐kind review benchmarks three solar methane valorization pathways with unified performance metrics for clean fuel production. Meeting global climate targets and sustainable energy demands requires carbon‐neutral fuels and innovative conversion pathways.
Muhammad Abdulmoez +3 more
wiley +1 more source
Low-pressure phase diagram of pure cadmium derived from analytical and experimental approaches
A thermodynamically consistent low-pressure pressure–temperature (P-T) phase diagram for pure Cadmium (Cd) is constructed, for the first time, by integrating Clausius–Clapeyron analytical predictions with controlled vacuum distillation experiments over ...
Jorge Nicolas Sanchez +2 more
doaj +1 more source
Study of Molecular and Ionic Vapor Composition over CeI3 by Knudsen Effusion Mass Spectrometry
The molecular and ionic composition of vapor over cerium triiodide was studied by Knudsen effusion mass spectrometry. In the saturated vapor over CeI3 the monomer, dimer, and trimer molecules and the negative ions I−, CeI4-, and Ce2I7- were identified in
A. M. Dunaev +4 more
doaj +1 more source
Upcycling High Impact Polystyrene Post‐Consumer E‐Waste Into Composites by Thiocracking
A high sulfur composite (HSM) series was prepared from HIPS waste feedstock through its reaction with elemental sulfur, yielding remeltable solids with a modified thermal and mechanical properties. The resulting materials show evidence of organic comonomer incorporation, demonstrating a route for valorization of plastic waste into sulfur‐based material
Carson B. Shivers, Rhett C. Smith
wiley +1 more source

