A5090509987- Zeolite Catalysis and Synthesis
- Mesoporous Materials and Catalysis
- Catalysis for Biomass Conversion
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Catalysis and Hydrodesulfurization Studies
- Catalytic Processes in Materials Science
- Crystallography and molecular interactions
- Supercapacitor Materials and Fabrication
- Metal-Organic Frameworks: Synthesis and Applications
- Catalysis and Oxidation Reactions
- Chemical Synthesis and Characterization
- Polyoxometalates: Synthesis and Applications
- Porphyrin and Phthalocyanine Chemistry
- Thermochemical Biomass Conversion Processes
- Chemical Looping and Thermochemical Processes
- Carbon Dioxide Capture Technologies
- Lanthanide and Transition Metal Complexes
- Biofuel production and bioconversion
- Catalysts for Methane Reforming
- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Synthetic Organic Chemistry Methods
- Polymer Nanocomposites and Properties
- Industrial Gas Emission Control
University of Lisbon
2015-2024
Universidade Federal do Pará
2024
Instituto Superior Técnico
2012-2021
Instituto Politécnico de Lisboa
2008-2021
Rede de Química e Tecnologia
2015-2021
Institute for Biotechnology and Bioengineering
2010-2019
Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento
2019
Instituto Tecnico Agronómico Provincial
2015
University of Aveiro
2010
Centre d’Élaboration de Matériaux et d’Études Structurales
2001-2008
This study highlights novel, energy-efficient, environmentally friendly and less time-consuming methods to dealuminate zeolites, by forced convective steaming use of molecular CO2. Zeolites with comparable (or superior) physicochemical properties than those traditional dealumination techniques were produced. All dealuminated zeolites tested for the hydrocracking high-density polyethylene, showing considerably high activity selectivity lighter oils, particularly gasoline. The steamed zeolite...
Mesoporous aluminosilicates of the type Al-TUD-1, prepared via "green", low-cost, non-surfactant templating routes, are effective and versatile heterogeneous acid catalysts for production useful bio-based furanic ethers levulinate esters, reactions biorenewable substrates 5-hydroxymethyl-2-furfural (Hmf) or furfuryl alcohol (FA) with aliphatic alcohols. The identification reaction intermediates products by comprehensive two-dimensional gas chromatography combined time-of-flight mass...
The impact of desilication on the performance a series alkali-treated NaY zeolites impregnated with 5 wt.% magnesium for glucose isomerisation into fructose has been studied. Desilication at different NaOH concentrations increases mesoporous volume and external surface area, without compromising microporosity crystallinity. observed reduction microporous due to impregnation was found decrease zeolites. Higher density strength basic sites stronger magnesium-support interaction were also...
The one-pot acid-catalysed conversion of mono/di/polysaccharides (inulin, xylan, cellobiose, sucrose, glucose, fructose, xylose) into 2-furfuraldehyde (FUR) or 5-hydroxymethylfurfural (HMF) in the presence aluminium-containing mesoporous TUD-1 (denoted as Al-TUD-1, Si/Al = 21), at 170 ºC was investigated. Xylose gave 60% FUR yield after 6 h reaction; hexose-based mono/disaccharides less than 20% HMF yield; polysaccharides 20 wt % yields h. For four consecutive batches xylose reaction...
The development of metal-organic frameworks (MOFs) enclosing active pharmaceutical ingredients is considerable interest, as their use in controlled drug release and delivery very promising. Although nalidixic acid an antibiotic with a broad spectrum biological applications, effective mainly against Gram-negative infections, its oral bioavailability low due to poor solubility slow dissolution. Herein, we report new (BioMOFs) comprising divalent magnesium manganese ions. These compounds showed...
Waterborne polymer coatings have the potential to address environmental concerns associated with solvent based systems. To improve their performance without using volatile organic compounds, we propose a new approach on reconfigurable covalent crosslinking that provides mechanical resistance and self-healing properties. The waterborne are mixtures of aldehyde- amine-functionalized nanoparticles (PNPs) take advantage reversibility imine bonds in presence water. Different degrees functional...
Pharmaceutical substances are found in soils and water supplies pose a significant risk to the ecosystem. Solar light-driven photocatalysis with titanium dioxide (TiO 2 ) nanophotocatalysts is widely explored for degrading...
Cyclam-based Mo(0) carbonyl complexes revealed important anticancer activity against human breast cancer cell lines.
Five new multicomponent crystal forms of the neuroleptic drug gabapentin with isophthalic acid, phthalic l-glutamine, and terephthalic trimesic acids have been reported are characterized by XRPD. While single structures first three compounds were not possible to determine, latter two further SCXRD, DSC, TGA, HSM, IR. The strong homomeric R22(8) heteromeric R42(8) synthons observed in carboxylic gabapentin, respectively, disrupted competing based on carboxyl···carboxylate amine···carboxylate...