A5040776071- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Conducting polymers and applications
- Perovskite Materials and Applications
- CO2 Reduction Techniques and Catalysts
- Copper-based nanomaterials and applications
- Catalytic Processes in Materials Science
- Covalent Organic Framework Applications
- Electronic and Structural Properties of Oxides
- Fuel Cells and Related Materials
- Catalysts for Methane Reforming
- Microfluidic and Capillary Electrophoresis Applications
- Spectroscopy and Chemometric Analyses
- Quantum Dots Synthesis And Properties
- Molecular Junctions and Nanostructures
- Analytical Chemistry and Sensors
- Chalcogenide Semiconductor Thin Films
- Electrocatalysts for Energy Conversion
- Nanopore and Nanochannel Transport Studies
- Layered Double Hydroxides Synthesis and Applications
- Porphyrin and Phthalocyanine Chemistry
- Polyoxometalates: Synthesis and Applications
IMDEA Energy Institute
2017-2025
Instituto de Catálisis y Petroleoquímica
2024
Instituto de Cerámica y Vidrio
2024
Madrid Institute for Advanced Studies
2020-2021
After 40 years of research on photocatalytic CO2 reduction, there are still many unknowns about its mechanistic aspects even for the most common TiO2-based systems. These uncertainties include pathways inducing visible-light activity in wide-band gap semiconductors, charge transfer between semiconductors and plasmonic metal nanoparticles, unambiguous determination origin C-bearing products, very first step activation molecule, factors determining selectivity, reasons photocatalyst...
This work highlights and offers fundamental insights on the potential of electropolymerized conjugated porous polymers in developing efficient hybrid photoelectrodes for photoelectrochemical applications. A simple cost‐effective electropolymerization strategy to create organic–inorganic based two thiophene‐based (CPP‐3TB IEP‐19) enhanced solar energy conversion is used. These polymers, when integrated with TiO 2 form photoanodes, exhibit photopotentials photocurrents compared bare ....
Advancing in the photocatalyst scale-up is crucial for development of highly efficient solar fuels production at industrial scale. Here, we report DC-magnetron sputtering as a suitable technique to produce photocatalytic TiO2 coatings CO2 reduction with view on process scalability. The crystallinity obtained varies surface density, amorphous or quasi-amorphous very low densities, while UV light absorption coefficients show opposite trend, which has been related proportionally higher abundace...
One of the main challenges to expand use titanium dioxide (titania) as a photocatalyst is related its large band gap energy and lack an atomic scale description reduction mechanisms that may tailor photocatalytic properties. We show rutile TiO2 single crystals annealed in presence hydrogen experience strong structural rearrangement, yielding material exhibits enhanced light absorption, which extends from ultraviolet near-infrared (NIR) spectral range, improved photoelectrocatalytic...
Solar energy conversion through photoelectrochemical cells by organic semiconductors is a hot topic that continues to grow due the promising optoelectronic properties of this class materials. In sense, conjugated polymers have raised interest researchers their interesting light-harvesting properties. Besides, extended π-conjugation provides them with an excellent charge conduction along whole structure. particular, porous (CPPs) exhibit inherent porosity and three-dimensional structure,...
Electron delocalisation times are significantly faster for SnS than 2 . Ultrafast times, as low 30 attoseconds, were measured thanks to the application of core hole clock method.
Abstract Ni/TiO 2 catalysts are efficient and cost‐effective for photothermal CO hydrogenation. However, the achieved CO/CH 4 ratio strongly depends on specific characteristics of these catalysts. To further ascertain role metal dispersion photoactivation selectivity, in this work we investigate impact Ni loading over high surface area anatase performance. Catalysts with 3 10 wt. % prepared by incipient wetness impregnation show initial good metal, although after activation H metallic...
In this work we present the design, assembly and characterization of a tandem photoelectrochemical (PEC) cell based on two different crystallographic phases sub-stoichiometric copper telluride nanocrystals (NCs). The first one, pseudo-cubic phase, pc-Cu2-xTe, is characterized by positive photocurrents, while second hexagonal h-Cu2-xTe, favors negative ones. Taking advantage optoelectronic properties Cu2-xTe structures, prepared PEC composed hybrid pc-Cu2-xTe/TiO2 photoanode, with TiO2 acting...
Solar energy conversion into fuels such as hydrogen through photoelectrochemical (PEC) cells is an attractive way to solve the problems present in actual energetic system. ( 1 ) Despite advances that have been made this line, it still necessary develop new materials and cell configurations take technology a higher scientific level. The application of organic polymers PEC hot topic continues grow due promising optoelectronic properties class semiconductors. Conjugated exhibit advanced because...
Photocatalytic solar-energy conversion for energetic and environmental applications is one of the most important challenges or this century.An interesting route valorization CO2 H2 production consists on its photocatalytic into fuels and/or chemicals in presence water suited photocatalysts; process also known as Artificial Photosynthesis (AP).Extensive efforts are focused improving efficiencies, especially when using electron donor.The design development efficient, robust low cost light...
Photoelectrochemical water splitting is one of the most interesting alternatives to produce hydrogen in a clean way by solar energy conversion.(1) Despite huge potential and great advances, new materials need be developed order take this technology commercial level. At present, different as oxides, oxisulfides metal chalcogenides are being investigated photoelectrodes photoelectrochemical cells. However, achieving high STH (Solar To Hydrogen) using single material photoelectrode very tricky...