Results 141 to 150 of about 79,478 (310)

Transitioning Formamide Solvothermal Syntheses of MOFs to Less Toxic Solvents

open access: yesChemistry – A European Journal, EarlyView.
Metal‐organic Frameworks (MOFs) are commonly synthesized in toxic formamide solvents. This study investigates the synthetic factors required for effective removal of formamides across various classes of MOFs, providing a foundation for designing new sustainable MOF syntheses.
Julia C. Donovan   +2 more
wiley   +1 more source

High‐Energy‐Density Redox Flow Batteries: Mechanisms, Design Strategies, and Recent Progress

open access: yesChemistry – A European Journal, EarlyView.
ABSTRACT The inherent intermittency of energy sources such as solar and wind power hinders the transition to renewable energy, necessitating advanced energy storage solutions. Enhancing energy density is crucial for lowering system costs and enabling large‐scale deployment.
Xiaolian Zhao   +8 more
wiley   +1 more source

Síntese e caracterização da zeólita 5A por troca iônica a partir de um resíduo da indústria de papel [PDF]

open access: yes, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Química, Florianópolis, 2013Este trabalho teve como objetivo avaliar a possibilidade de aproveitamento na síntese de zeólitas do ...
Moreira, Jarina Costa
core  

Removal of arsenic(III) oxyanions from wastewater using aminosilane-modified natural and synthetic zeolite

open access: yes, 2021
Silanization of the natural and synthetic zeolites as well as their use as adsorbents for removing arsenic(III) oxyanions from wastewater are the topic of this paper.
Petrović, Jelena   +4 more
core  

H2O2 Activation and Alkane Oxidation by Copper Complexes With R‐dpa N3‐Tridentate Ligands: The Complex‐Based Dicopper Active Species as a Key Feature in the Efficient Alkane Oxidation

open access: yesChemistry – A European Journal, EarlyView.
Two reaction pathways, Paths 1 and 2, are involved in H2O2 activation by Cu complexes with N3‐tridentate ligands, depending on the ease of bridging structure formation. In Path 1, hydroxy radical (HO•) is formed from a hydroperoxo Cu(II) intermediate. In Path 2, a relevant complex‐based μ‐O• bridged Cu(II)2 active species is formed from a bis‐μ‐oxo Cu ...
Kyosuke Fujikawa   +5 more
wiley   +1 more source

Novel process of biochemical ammonia removal from air streams using a zeolite (clinoptilolite) filter system

open access: yes, 2012
Ammonia (NH3) in air is of major health and environmental concern, i.e. contribution to the greenhouse effect when NH3 is converted to nitrous oxide (N2O) in the atmosphere.
Vitzthum von Eckstaedt, Sebastian
core  

Diffusion of Carbamazepine in Hydrophobic Zeolites: A Comparative Study Using Classical and Machine‐Learned Potentials

open access: yesChemistry – A European Journal, EarlyView.
Can hydrophobic, shape‐selective zeolites efficiently remove the persistent pharmaceutical CBZ from water? This work moves beyond the static picture of interaction energies by modeling diffusion with umbrella sampling and machine‐learned potentials. Even high intrinsic diffusion barriers can be overcome through exergonic adsorption from water, yielding
Jakob Brauer   +4 more
wiley   +1 more source

Adsorption of sulfonamide antibiotics into high silica zeolites from water: A combined structural, spectroscopic and computational approach

open access: yes, 2013
Introduction Sulfa drugs belong to the class of synthetic antibiotic sulfonamides, massively used for the treatment of infections in human therapy, livestock production and aquaculture [1]. Owing to their environmental diffusion, sulfa drugs are known to
I. Braschi   +5 more
core  

Semiconducting Single‐Wall Antimony Oxide Nanotubes and Oxidotritelluridoantimonate(V) Anions

open access: yesChemistry – A European Journal, EarlyView.
Antimony(V) binds directly to tellurium(−II) in the (SbOTe3)3− anion. The latter has been found between Sb2O3 nanotubes in a microporous cetineite structure. The Sb2O3 nanotube is positively polarized on its outer surface and negatively polarized on its inner surface, corresponding to a cylindrical capacitor. Substantial charge transfer from the anions
Huanyu He   +3 more
wiley   +1 more source

Coordinative‐Guest‐Triggered Dimensional Crossover in a Metal–Organic Framework With Rigid Metal–Oxo Rods

open access: yesChemistry – A European Journal, EarlyView.
We report a reversible structural phase transition in a metal–organic framework (MOF) triggered by the exchange of coordinative guest molecules. This MOF consists of rigid 1D Pb–O rods as building units, forming a 3D framework with 1D pores. Guest exchange induces pronounced changes in both the Pb–O rod structure and the dimensionality of the framework.
Keisuke Ishikawa, Kazuya Otsubo
wiley   +1 more source

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