A5078736701- Catalysis and Hydrodesulfurization Studies
- Catalysis for Biomass Conversion
- Supercapacitor Materials and Fabrication
- Mesoporous Materials and Catalysis
- Zeolite Catalysis and Synthesis
- Biodiesel Production and Applications
- Electrocatalysts for Energy Conversion
- Catalysts for Methane Reforming
- Catalytic Processes in Materials Science
- Innovative Microfluidic and Catalytic Techniques Innovation
- CCD and CMOS Imaging Sensors
- Nanomaterials for catalytic reactions
- Gold and Silver Nanoparticles Synthesis and Applications
- Layered Double Hydroxides Synthesis and Applications
- Silicon Nanostructures and Photoluminescence
- Asymmetric Hydrogenation and Catalysis
- Thin-Film Transistor Technologies
- Metamaterials and Metasurfaces Applications
- Carbon dioxide utilization in catalysis
- Plasmonic and Surface Plasmon Research
National Institute of Astrophysics, Optics and Electronics
2006-2023
Rede de Química e Tecnologia
2019-2023
Universidade do Porto
2019-2023
University of Liverpool
2017-2019
ORLEN UniCRE
2016-2018
Universidad Rey Juan Carlos
2012-2016
Research Institute of Inorganic Chemistry
2015-2016
The production of cyclopentanone derivatives from 5-hydroxymethylfurfural using non-noble metal based catalysts is reported for the first time.
Rapeseed oil conversion has been investigated over catalysts based on Ga- and Zn-modified nanocrystalline HZSM-5 zeolite aimed to the production of hydrocarbons that could be used as both raw chemicals and/or fuels. The reactions have carried out in a fixed bed reactor operating under nitrogen at 550 °C atmospheric pressure. incorporation metallic species parent was by wetness-impregnation, resulting good metal dispersion, which is facilitated relatively high external surface area available...
Abstract The hydrogenation of furfural by catalytic hydrogen transfer to produce furfuryl alcohol has been investigated over a series mixed oxides derived from hydrotalcite catalysts. Three different catalysts containing Ni, Co and Zn phases on an Al‐rich amorphous support were synthesized characterised. performances evaluated in batch stirred reactor using 2‐propanol as solvent donor, with 3 O 4 −Al 2 showing the highest activity selectivity FA (74 % yield; 97 selectivity). effects...
Methane has a rather relevant role in the “Power-to-Gas” concept, which is central current paradigm of climate change and renewable energies. Methane, main component natural gas, can be produced by catalytic hydrogenation reactions, particularly CO2. A very effective catalyst this reaction, hydrotalcite-derived nickel nanoparticles supported on alumina, Ni/Al2O3-HTC, employed high-pressure flow reactor to convert CO2 H2 into CH4 at 100% selectivity 84% conversion, whereas atmospheric...
Aiming at the valorisation of furfural-derived compounds, hydrodeoxygenation furfural–acetone condensation products has been studied using supported platinum catalysts.
Conversion of 5-hydroxymethylfurfural (HMF) in water to the linear diketone derivatives 1-hydroxyhexane-2,5-dione (HHD) and 2,5-hexanedione (HXD) was investigated over a series Beta zeolite-supported transition metal catalysts (Co, Ni, Cu, Ru, Pd). Their catalytic performance tested batch stirred reactor (T = 110 °C, P H2 20 bar) with Pd showing highest activity selectivity HHD HXD. The effects particle size, zeolite Si/Al ratio reaction conditions 80–155 5–60 were also investigated....
The formation of cyclopentenones from biomass derivatives has been developed by reacting furfurals with secondary amines using Lewis acid catalysis under batch conditions. challenge scaling up these processes leads to the development a continuous flow procedure for preparation trans-4,5-diamino-cyclopentenones silica-supported copper catalysts. These catalysts exhibited high efficiency and recyclability broad scope cyclic enones.
Novel bifunctional metal-loaded polymer–silica composite (PSC) catalysts were investigated in the hydrodeoxygenation (HDO) of 4-(2-furyl)-3-buten-2-one (FAc) as a model substance for furfural–acetone aldol condensation products. PSC synthesized via sol–gel method with different polymer contents and subsequently doped noble metals. The product composition HDO FAc could be tuned by using (i.e., acidic properties) metal content redox properties), showing great potential materials tunable...
In this work, we investigate the plasmonic response of a random metasurface based on gold nano-islands (AuNI) in an attenuated total reflectance (ATR) configuration. AuNI structures were obtained by thermal annealing ultrathin film deposited glass substrate. The samples exhibited wide range sizes and particle densities, varying nominal thickness. For p polarization, well-defined localized surface plasmon resonance (LSPR) dip was observed all samples, while for s only with smallest radii...
Abstract not Available.