Results 161 to 170 of about 40,186 (336)

Design and Optimization of a Novel Kalina‐Organic Rankine Cycle System Based on LNG Cold Energy Utilization

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study proposes a novel integrated system (SDKC‐DORC) that combines a split‐flow dual‐pressure Kalina cycle with a secondary organic Rankine cycle for the synergistic utilization of solar energy and liquefied natural gas (LNG) cold energy.
Ke Xiao   +6 more
wiley   +1 more source

Membrane Polymers for the Pervaporative Separation of Polar Organics: Methanol and Acetonitrile

open access: yesJournal of Applied Polymer Science, EarlyView.
We tested seven polymers as membranes for the pervaporative separation of methanol‐acetonitrile mixtures. Chloroprene rubber, silicone rubber, and Matrimid showed effective separation by favoring acetonitrile transport, enabling azeotrope breaking. Plasticization was assessed using Broadband Dielectric Spectroscopy.
Jordan Janák   +8 more
wiley   +1 more source

Development and Characterization of Poly(Vinyl Alcohol)/Chitosan/Collagen Blends for the Treatment of Burn Wounds

open access: yesJournal of Applied Polymer Science, EarlyView.
Schematic illustration of the poly(vinyl alcohol)/chitosan/collagen blend, highlighting the main physicochemical characterization results and the biological evaluations performed in an in vivo burn model. ABSTRACT Burns are complex injuries that require effective and multifunctional therapeutic approaches.
Bruna V. Quevedo   +6 more
wiley   +1 more source

Understanding cationic polyelectrolyte thermogels with varying charge densities toward biomaterials design

open access: yesBMEMat, EarlyView.
Cationic polyurethane thermogels with customizable charge density were developed, exhibiting enhanced pH‐responsiveness. This work elucidates how cationic charges influence self‐assembly and thermogelling, providing insights for designing smart biomaterials.
Belynn Sim   +10 more
wiley   +1 more source

Formation of a 14‐Electron Intermediate in Iridium Catalysis through Reductive Elimination: Dissociation Is Rate Determining

open access: yesChemistryEurope, EarlyView.
Dynamic NMR and trapping studies reveal that POCOP–Ir phenyl hydride complexes perform reductive coupling rapidly but dissociate benzene slowly. PCP–Ir analogs show comparatively slow reductive coupling and faster dissociation. This work experimentally clarifies aspects of C–H reductive elimination in iridium pincer complexes.(POCOP = bisphosphinite ...
Alice Spangenberg, Ola F. Wendt
wiley   +1 more source

Solvent‐Driven Pore Engineering in Coffee‐Derived Activated Hydrochar: Implications for Post‐Combustion CO2 Capture

open access: yesCarbon Energy, EarlyView.
Solvent washing of coffee‐ground hydrochars produces activated carbons with tunable pore sizes while maintaining surface area. Removing non‐polar contaminants enhances microporosity, increasing CO2 uptake by 40%. Moderate pore sizes (9–12 Å) yield optimal CO2:N2 selectivity, whereas smaller pores reduce selectivity due to stronger interactions between ...
Muhammad Irfan Maulana Kusdhany   +4 more
wiley   +1 more source

Precision Catalysis in Dehydrogenation of Liquid Organic Hydrogen Carriers: Molecular Structure‐Geometry‐Electronic Interplay for Enhanced Hydrogen Evolution

open access: yesCarbon Energy, EarlyView.
Atomic‐scale design principles for LOHC dehydrogenation: Tailoring geometric and electronic effects in metal catalysts to bridge the molecular structure of LOHC and dehydrogenation performance. ABSTRACT The advancement of hydrogen‐based energy systems necessitates innovative solutions for safe, efficient hydrogen storage and transportation.
Yongxiao Tuo   +8 more
wiley   +1 more source

Metasurface Enhanced Photothermal Cement Foam for Robust and High‐Throughput Seawater Desalination

open access: yesCarbon Energy, EarlyView.
Schematic of 3D metasurface‐enhanced cement foam for robust and high‐throughput seawater desalination. This study presents a cement‐based solar evaporator (CSE) fabricated in one step via viscoelastic lithography with simple negative pressure. In addition to boosting solar‐to‐vapor conversion efficiency via excellent light‐harvesting capacity, the ...
Jianjun Guo   +4 more
wiley   +1 more source

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