A5078347671- Zeolite Catalysis and Synthesis
- Chemical Synthesis and Characterization
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Crystal Structures and Properties
- Metal-Organic Frameworks: Synthesis and Applications
- Polyoxometalates: Synthesis and Applications
- Mesoporous Materials and Catalysis
- Luminescence Properties of Advanced Materials
- Membrane Separation and Gas Transport
- Adsorption and biosorption for pollutant removal
- Magnetism in coordination complexes
- Lanthanide and Transition Metal Complexes
- Catalysis and Oxidation Reactions
- Crystallography and molecular interactions
- Advanced NMR Techniques and Applications
- Nuclear materials and radiation effects
- Radioactive element chemistry and processing
- Covalent Organic Framework Applications
- Ammonia Synthesis and Nitrogen Reduction
- Catalytic Processes in Materials Science
- Metal complexes synthesis and properties
- Glass properties and applications
- Layered Double Hydroxides Synthesis and Applications
- Crystal structures of chemical compounds
University of Aveiro
2015-2024
South China Normal University
2022-2023
Complejo Hospitalario Universitario de Santiago
2019
University of Minho
2008-2012
Nanjing University
2009
Universidade do Porto
2007
Institut de Ciència de Materials de Barcelona
2006-2007
Consejo Superior de Investigaciones Científicas
2006-2007
Universitat Rovira i Virgili
2007
University of Coimbra
2007
Isostructural lanthanide organic frameworks (Me 2 NH ) 3 [Ln (FDC) 4 (NO ]·4H O (Ln = Eu ( 1 ), Gd Tb H FDC 9‐fluorenone‐2,7‐dicarboxylic acid), synthesized under solvothermal conditions, feature a Ln‐O‐C rod‐packing 3D framework. Time‐resolved luminescence studies show that in the energy difference between triplet excited state (17794 cm −1 and 5 D 0 3+ level (17241 is small enough to allow strong thermally activated ion‐to‐ligand back transfer. Whereas emission of ligand essentially...
Hydrogen, one of the most promising energy carriers for future, is currently produced mainly by natural gas reforming or coal gasification, where mixtures containing H2, CO2 and contaminants like CO, H2S CH4 are obtained. Among other methods, membrane technology has received special attention due to its potential efficiency hydrogen separation, simplicity operation, low consumption, because it environmentally friendly. For this application, inorganic membranes can be essentially divided into...
Synthetic analogues of the microporous minerals umbite (AM-2) and penkvilksite, polytype 2O (AM-3), have been prepared. The facile syntheses two other titanosilicates, AM-1 AM-4, also reported. previously reported, layered titanosilicate known as JDF-L1 shown to same structure. AM-4 is a new with unique unknown structure, containing eight different Na sites. All AM-n materials characterized by several techniques, viz. SEM, powder XRD, single- triple-quantum 23Na 29Si MAS NMR, water...
Cationic nanomagnet-porphyrin hybrids were synthesized and their photodynamic therapy capabilities investigated against the Gram (-) Escherichia coli bacteria, (+) Enterococcus faecalis bacteria T4-like phage. The synthesis, structural characterization, photophysical properties, antimicrobial activity of these new materials are discussed. results show that multicharged very stable in water highly effective photoinactivation phages. Their remarkable activity, associated with easy recovery,...
Research Article| January 01, 2005 Microporous Mixed Octahedral-Pentahedral-Tetrahedral Framework Silicates João Rocha; Rocha Department of Chemistry, CICECO, University Aveiro, 3810-193 Portugal, rocha@dq.ua.pt Search for other works by this author on: GSW Google Scholar Zhi Lin Author and Article Information Publisher: Mineralogical Society America First Online: 03 Mar 2017 © The Of Reviews in Mineralogy Geochemistry (2005) 57 (1): 173–201. https://doi.org/10.2138/rmg.2005.57.6 history...
Five new metal–organic frameworks (MOFs) have been synthesized by using cadmium ion and 2,5-furandicarboxylic acid in presence of a variety bridging amine ligands, [Cd(fdc)(2,2′-bpy)(H2O)]n (1), {[Cd(fdc)(pyz)(H2O)2][Cd(fdc)](H2O)2]·H2O}n (2), {[Cd(fdc)(4,4′-bpy)(H2O)2]·EtOH}n (3), [Cd(fdc)(1,2-bpe)(H2O)]n (4), [{Cd2(fdc)2(H2O)4}·(1,2-bpe)]n (5), where fdc = acid, 2,2′-bpy 2,2′-bipyridyl, pyz pyrazine, 4,4′-bpy 4,4′-bipyridyl, 1,2-bpe 1,2-di(4-pyridyl)ethylene. All the compounds were...
A flexible Eu-based MOF with strong red-light-emission exhibits selective detection of PA among the nitro compounds.
A structure similar to that of microporous titanosilicate ETS-10 is reported for the first large-pore vanadosilicate framework containing stoichiometric amounts hexacoordinated vanadium. section high-resolution electron micrograph shown on right.
For the first time, Eu8.18Na1.08(SiO4)6(OH)1.62-2yOy (Eu apatite) and Eu3.96Gd3.96Na1.2(SiO4)6(OH)1.86-2yOy (Eu−Gd were synthesized at mild hydrothermal conditions. Powder X-ray analysis suggested a preferential substitution of Ln3+ by Na+ ions in 4f position for both materials. The Eu3+ Gd3+ alters distribution between 6h sites, which impacts their local symmetry, optical properties, quantum efficiency. These materials are efficient room-temperature emitters with maximum external yield ca....
Abstract A new amino‐functionalized strontium–carboxylate‐based metal–organic framework (MOF) has been synthesized that undergoes single crystal to (SC‐to‐SC) transformation upon desolvation. Both structures have characterized by single‐crystal X‐ray analysis. The desolvated structure shows an interesting 3D porous with pendent NH 2 groups inside the pore wall, whereas solvated compound possesses a nonporous DMF molecules on metal centers. amino group was postmodified through Schiff base...
Two-dimensional 1H-31P heteronuclear correlation NMR of trimethylphosphine oxide (TMPO) adsorbed in zeolites, tandem with DFT calculations, challenges previous one-dimensional 31P assignments, enabling the unambiguous discrimination Brønsted and Lewis acid sites, extending understanding TMPO:Brønsted complexes formed distinct stoichiometries at HZSM-5 zeolite surface, proton-transfer mechanism.