Results 81 to 90 of about 40,750 (298)

Solvent‐Free Thermal Defect Engineering in Molecular Frameworks With Volatile Linkers

Advanced Materials, EarlyView.
Thermal removal of neutral volatile linkers enables precise and solvent‐free generation of metal vacancies in MOFs. This strategy affords redox‐stable, coordinatively unsaturated FeII sites with tunable spin, ligand coordination, and catalytic behavior. The approach offers a general route to design defect‐functional materials through local coordination
Sonia Martínez‐Giménez, Alejandro Orellana‐Silla, Marta Galbiati, Efrén Navarro‐Moratalla, Luca Braglia, Sara Stolfi, José Antonio Real, Víctor Rubio‐Giménez, Sergio Tatay, Carlos Martí‐Gastaldo   +9 more
wiley   +1 more source

Crystallization of Polymers with a Reduced Density of Entanglements

Crystals
Since methods for reducing macromolecule entanglements have been developed, it has become possible to better understand the impact of polymer chain entanglement on the crystallization process.
Andrzej Pawlak
doaj   +1 more source

Time Scales for Viscous Flow, Atomic Transport, and Crystallization in the Liquid and Supercooled Liquid States of Zr41.2Ti13.8Cu12.5Ni10.0Be22.5 [PDF]

, 1999
The shear viscosity of liquid Zr41.2Ti13.8Cu12.5Ni10.0Be22.5 has been measured. At the liquidus temperature we find an extremely high viscosity of 2.5 Pa s, favoring glass formation.
Busch, R., Johnson, W. L., Masuhr, A., Waniuk, T. A.   +3 more
core   +1 more source

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

Advanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil, Celia Castillo‐Blas, Dawid Krystian Feler, Isabel Gómez‐Recio, Miguel Tinoco, Ana Querejeta‐Fernández, Rodrigo González‐Prieto, Felipe Gándara, Romualdo Santos Silva Jr, Pilar Ferrer, Carlos Prieto, Luc Lajaunie, José Luis Martinez‐Peña, María Luisa Ruiz‐González, José María González‐Calbet   +14 more
wiley   +1 more source

Revisiting polymer crystallization kinetics: experimental validation of the Mo equation for modified PET systems

Frontiers in Materials
This study investigated the non—isothermal crystallization kinetics of pure poly(ethylene terephthalate) (PET) and chain—extended modified PET using DSC at various cooling rates.
Ma Lingcong, Mao Fengyu, Wu Yajuan, Peng Ying, Luo Fei, Wen Jin   +5 more
doaj   +1 more source

Electrical and Mechanical Properties of new Recyclable Power Cable Insulation Materials based upon Polyethylene Blends

, 2011
Chemically crosslinked polyethylene (XLPE) has been used as electrical insulation for power cables since the 1970s due to its favourable combination of electrical and mechanical properties.
Fairhurst, M.J., Geussens, T., Green, C.D., Stevens, G.C., Sutton, S.J., Vaughan, A.S.   +5 more
core  

Deformation and crystallization of Zr-based amorphous alloys in homogeneous flow regime [PDF]

, 2010
The purpose of this study is to experimentally investigate the interaction of inelastic deformation and microstructural changes of two Zr-based bulk metallic glasses (BMGs): Zr_(41.25)Ti_(13.75)Cu_(12.5)Ni_(10)Be_(22.5) (commercially designated as ...
Chokshi, Atul H., Conner, Robert D., Johnson, William L., Ravichandran, Guruswami, Tao, Min   +4 more
core   +1 more source

Direct Synthesis of High‐Valence Protein@UiO‐66 Composites: Linking Crystallization Pathways to Protein Encapsulation

Advanced Materials, EarlyView.
This work reports a direct, biocompatible method to synthesize UiO‐66, enabling one‐step encapsulation of proteins without compromising crystallinity or activity. Using advanced in situ and ex situ techniques, the study reveals that proteins integrate concurrently with MOF growth, forming crystalline protein@UiO‐66 nanoparticles, and provide insight ...
Jesús Cases Díaz, Jana Glatz, Elisa Merced Olivas, Ramon Pons, Joseph P. Patterson, Mónica Giménez‐Marqués   +5 more
wiley   +1 more source

Distinct Crystallization Pathways of Polyoxymethylene in Methanol System

Crystals
Recrystallization of polyoxymethylene (POM) in solvent is an effective post-treatment method for manufacturing a better POM product. Herein, the crystallization process of POM in methanol was investigated with the use of a series of equipment.
Haowen Du, Xiaomeng Zhou, Yaru Zhang, Yang Ye, Shutian Xuanyuan, Sen Yang, Guorui Lao, Chuang Xie   +7 more
doaj   +1 more source

Cristalização e taxa crítica de resfriamento para vitrificação do poli(sebacato de decametileno) Crystallization and critical cooling rate to vitrify poly(decamethylene sebacate)

Química Nova, 2003
We synthesized Poly(decamethylene sebacate) - P10MS - and studied its overall crystallization rates in a range of temperatures using Differential Scanning Calorimetry in isothermal conditions, which enabled us to identify the crystallization mechanism by
Luciana Maria Guimarães, Edgar Dutra Zanotto   +1 more
doaj   +1 more source