Results 131 to 140 of about 160,169 (274)

Proofing the presence of metal oxide impregnated into zeolite A without calcination: XRD and FTIR studies

open access: yesCase Studies in Chemical and Environmental Engineering
Zeolite A is a zeolite with the smallest Si/Al ratio. The aim of this research is to characterize the synthesis of metal oxide/zeolite A through XRD and FTIR results, and to evaluate the treatment without calcination in the synthesis of metal oxide ...
Muhammad Roy Asrori   +2 more
doaj   +1 more source

Synthesis of trimethylolpropane trioleate by using stannous oxalate catalyst

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract This study was conducted to synthesize trimethylolpropane trioleate (TMPTO) using a stannous oxalate catalyst and investigate the dependence of the esterification rate on reaction variables. The highest esterification rate of approximately 99% was achieved at a 2.75:1 oleic acid/trimethylolpropane, 1.5% catalyst amount, 180°C reaction ...
Oguzhan Ilgen, Sumeyye Bilgic
wiley   +1 more source

Marine silicon for biomedical sustainability

open access: yesBMEMat, EarlyView.
Schematic illustrating marine silicon for biomedical engineering. Abstract Despite momentous divergence from oceanic origin, human beings and marine organisms exhibit elemental homology through silicon utilization. Notably, silicon serves as a critical constituent in multiple biomedical processes.
Yahui Han   +3 more
wiley   +1 more source

Fabrication, Modification, and Applications of Functional Aerogels: A Review

open access: yesCarbon and Hydrogen, EarlyView.
Advances in aerogel materials synthesis modification properties applications and future perspectives. ABSTRACT Aerogels, characterized by a highly porous three‐dimensional nanoscale structure, possess exceptional properties such as ultra‐low density, high specific surface area, and remarkably low thermal conductivity.
Jinshuo Zhang   +3 more
wiley   +1 more source

A Critical Review on Catalytic Regeneration of Amine Solutions for Energy‐Efficient CO2 Capture

open access: yesCarbon and Hydrogen, EarlyView.
This review summarizes recent progress in acid‐catalyzed regeneration of CO2‐rich amine solutions. It highlights catalyst performance, mechanisms, and data‐driven design, aiming to bridge fundamental research with engineering practice for energy‐efficient carbon capture.
Qiyue Zhao   +5 more
wiley   +1 more source

Gold Nanoparticles–Dynamic Constitutional Frameworks as Adaptive Hybrid Conjugates for Enzyme Immobilization

open access: yesChemistryEurope, EarlyView.
Dynamic constitutional frameworks (DCFs) and gold nanoparticles (AuNps) assemble into larger and well‐distributed conjugates providing an efficient platform for biosensing and biocatalytic applications. Dynamic constitutional frameworks (DCFs), connecting monomers via reversible covalent bonds, can initiate the assembly of gold nanoparticles (AuNps ...
Sanaa Daakour   +5 more
wiley   +1 more source

Research Progress on Halide Solid‐State Electrolytes: Synthesis, Mechanism, and Modification

open access: yesCarbon Energy, EarlyView.
This review comprehensively summarizes the research progress on halide solid‐state electrolytes, including their classifications, synthesis methods, ion conduction mechanisms, and modification strategies. It also proposes effective modification strategies to address critical issues, such as air stability and interface compatibility.
Weifeng Shen   +20 more
wiley   +1 more source

Grafting Nanolayers of Ni and Co Catalysts Around the Edges of Hierarchical Zeolite 13X by Leveraging the Crystal's Defects for CO2 Methanation

open access: yesCarbon Energy, EarlyView.
The deactivation of nickel‐based catalysts at high temperatures poses a significant challenge in CO2 methanation processes. To address this, a strong metal–support interaction between nickel and the support was engineered by exploiting the crystal defects present in hierarchical porous zeolite 13X.
Nasir Shezad   +7 more
wiley   +1 more source

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