Results 181 to 190 of about 167,685 (283)

Interplay Between Oxidation State, Intervalence Charge Transfer Transitions and Electronic Conductivity in a Series of Ru‐Based Metal–Organic Frameworks

open access: yesSmall, EarlyView.
Ru‐based square‐grid metal–organic frameworks undergo dramatic conductivity enhancements after chemical oxidation. The mixed‐valent states exhibit the highest conductivity values, which correlate with the appearance of intervalence charge transfer bands.
Wang Zhang   +12 more
wiley   +1 more source

Characterization of the Pore Environments in Covalent Organic Frameworks by Dynamic Spin Probe Exchange

open access: yesSmall, EarlyView.
Covalent organic frameworks (COFs) with alkyl or triethylene glycol pore linings are probed with water‐dissolved nitroxide radicals using CW EPR spectroscopy. Adsorption affinity, local polarity, and radical concentration inside the pores are quantified, revealing hydrogen bonding, dipolar, and π‐π interactions that govern guest binding, which ...
Sebastian Michler   +5 more
wiley   +1 more source

Preserving Hierarchical Integrity During Primary Structure Modification of Spherulitic MOFs

open access: yesSmall, EarlyView.
A MOF‐74‐type zinc framework self‐organizes into well‐defined spherulitic superstructures while allowing precise covalent post‐synthetic modification (PSM) of the linkers. A built‐in tetrazine enables fast inverse electron‐demand Diels–Alder (iEDDA) functionalization to uniformly install primary amines.
Gabriela Kowacz   +2 more
wiley   +1 more source

Electroconductive MXene‐Thin‐Film‐Composite Membranes for Coupled Osmotic Concentration and PFAS Mineralization

open access: yesSmall, EarlyView.
An electroconductive MXene‐TFC membrane integrates osmotic dewatering with anodic oxidation to concentrate and mineralize PFOA at the membrane interface. The coupled AO‐PRO configuration accelerates degradation kinetics, achieves 99% rejection and up to 93% TOC removal, and lowers specific energy demand, offering a compact route for PFAS destruction ...
Afrouz Yousefi   +9 more
wiley   +1 more source

Metal‐Organic Framework‐Templated Deconstruction‐Reconstruction Enables One‐Dimensional to Two‐Dimensional Self‐Assembly of Transition Metal Phosphates for High‐Performance Ammonia Sensing

open access: yesSmall, EarlyView.
One‐dimensional nickel phosphate nanofibres are transformed into two‐dimensional quasi‐nanosheets through a metal‐organic framework‐templated deconstruction‐reconstruction strategy. The hierarchical nanofibre‐assembled architecture provides rich mesoporosity, accessible adsorption sites, and rapid ammonia diffusion, enabling high‐performance QCM ...
Ping Cheng   +7 more
wiley   +1 more source

Adsorption‐Programmed Transformation of a Two‐Dimensional Cu–Imidazolate Framework into Mn‐Integrated Catalytic Nanonetwork

open access: yesSmall, EarlyView.
A freeze‐dried copper‐based metal‐organic framework removes more than 95% of manganese from water. Capturing the metal reorganizes the framework, giving the used adsorbent a second life as a reusable catalyst that produces valuable ester products in yields up to 84%.
Prathmesh Bhadane   +7 more
wiley   +1 more source

One‐Pot Fabrication of Pentapeptide Bio‐Aerogel via Direct Alcogelation

open access: yesSmall, EarlyView.
A minimal tachykinin‐inspired pentapeptide (TC‐1) self‐assembles in water and ethanol to form robust gels that can be dried in one pot to ultra‐porous aerogels using supercritical carbon dioxide. Solvent choice programs nanoscale packing and bulk mechanics producing lightweight monoliths with high porosity for biomaterials applications, verified by ...
Brody McDonald   +6 more
wiley   +1 more source

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