Results 151 to 160 of about 180,400 (354)
Chemistry – 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
Síntese e caracterização da zeólita 5A por troca iônica a partir de um resíduo da indústria de papel [PDF]
, 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
Chemistry – 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
Frontiers in Environmental ChemistryMagnetised zeolite A, zeolite X and Na,K-CHA composites with superparamagnetic nanoparticles of SiO2-coated Fe3O4 or CoFe2O4 ferrite spinels were prepared, characterised and tested for ion exchange efficacy. They were synthesised by following three steps,
Azusa Ito +4 more
doaj +1 more source
Removing Ammonia From Wastewater Using Natural and Synthetic Zeolites: A Batch Experiment
, 2019 Ion exchange based processes for the removal of ammonium from wastewater using zeolites could be an attractive additional or potentially complementary treatment option for conditions that pose a challenge for biological processes, such as variable load ...
Ana, Soares +2 more
core +1 more source
Chemistry – A European Journal, EarlyView.The first microwave‐assistance‐free heterogeneous catalytic upcycling of polyoxymethylene (POM) into valuable cyclic acetals is achieved with a reusable proton‐exchanged montmorillonite (H‐Mont) catalyst. Combining interlayer accessibility with strong acidity, H‐Mont enables efficient, regenerable, and versatile transformations with potentially biomass‐
José F. Noboa +3 more
wiley +1 more source
Compression of zeolites in penetrating fluids: an overview
, 2017 Over the last two decades, a new light was shed on the high-pressure behavior of zeolites and on the most important mechanisms adopted by these materials to accommodate compression. However, the early discovery of the P-induced intrusion of H2O molecules
G.D. Gatta, P. Lotti
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Vibrational spectroscopy of zeolite complexes [PDF]
, 1985 Using infrared spectroscopy, studies of the interaction of small molecules {e.g. CO, C(_2)H(_2), CH(_3)CHO) with zeolites have been carried out. The work has resulted in the observation of both stable chemisorbed complexes and reacting species for which
Nicol, Jaqueline Mary
core
Semiconducting Single‐Wall Antimony Oxide Nanotubes and Oxidotritelluridoantimonate(V) Anions
Chemistry – 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
Small-Pore Zeolites: Synthesis and Catalysis.
Chemical Reviews, 2018 M. Dusselier, Mark E. Davis
semanticscholar +1 more source