A5052406463- Catalytic Processes in Materials Science
- Catalysts for Methane Reforming
- Catalysis and Hydrodesulfurization Studies
- Advanced Photocatalysis Techniques
- Carbon dioxide utilization in catalysis
- Copper-based nanomaterials and applications
- Advanced materials and composites
- Gas Sensing Nanomaterials and Sensors
- Infrastructure Maintenance and Monitoring
- Asphalt Pavement Performance Evaluation
- Rocket and propulsion systems research
- Nanomaterials for catalytic reactions
- Advanced biosensing and bioanalysis techniques
- Perovskite Materials and Applications
- Smart Materials for Construction
- MXene and MAX Phase Materials
- Spacecraft and Cryogenic Technologies
Universitat de Barcelona
2019-2024
Flemish Institute for Technological Research
2023-2024
Institut de Nanociència i Nanotecnologia de la Universitat de Barcelona
2019-2024
Institut de Recerca en Energia de Catalunya
2019-2024
In this work, we studied new materials free of noble metals that are active in photocatalytic H2 generation from ethanol aqueous solutions (EtOHaq), which can be obtained biomass. MoxC/g-C3N4 photocatalysts containing hexagonal (hcp) Mo2C and/or cubic (fcc) MoC nanoparticles on g-C3N4 nanosheets were prepared, characterized, and evaluated for hydrogen production EtOHaq (25% v/v). Tailored nanocomposites with MoxC crystallite sizes the 4–37 nm range prepared by treatment ultrasound...
Transition metal carbides of group 5 (G5TMC=VC, NbC and TaC) with similar crystallite sizes were prepared by a sol-gel route. The catalysts characterized studied in the methanol steam reforming (MSR) reaction temperature range 573–723 K at atmospheric pressure using stoichiometric CH3OH/H2O = 1/1 mole ratio mixture. Under MSR conditions used, route transformation depends on G5TMC used as catalyst. catalytic behaviour VC differs from that TaC, which turn show behaviour. Over VC, is mainly...
The search for cheap and active materials the capture activation of CO2 has led to many efforts aimed at developing new catalysts. In this context, earth-abundant transition metal carbides (TMCs) have emerged as promising candidates, garnering increased attention in recent decades due their exceptional refractory properties resistance sintering, coking, sulfur poisoning. work, we assess use Group 5 TMCs (VC, NbC, TaC) potential carbon sequestration/utilization technologies by combining...
MoxC-based catalysts supported on γ-Al2O3, SiO2 and TiO2 were prepared, characterized studied in the reverse water gas shift (RWGS) at 548-673 K atmospheric pressure, using CO2:H2 = 1:1 1:3 mol/mol reactant mixtures. The support used determined crystalline MoxC phases obtained behavior of nanostructured RWGS. All active RWGS reaction under experimental conditions used; CO productivity per mol Mo was always higher than that unsupported Mo2C prepared a similar method absence support....
In space, every carbon atom matters. It is a potential source for wealth of products essential human space exploration and habitation. Here, we report the use Martian Lunar regolith simulants as catalysts thermochemical catalytic conversion CO2. Results this study clearly underlines activity towards CO production through RWGS reaction at high temperature all simulants. Characterization samples reveals improved activities directly correlated with presence further transformation iron...
New alumina-supported catalysts based on transition metal carbides of group 5 were studied in the reverse water gas shift (RWGS) reaction at 573-873 K and 0.1 MPa. VCx/Al2O3 active, stable highly selective CO2 reduction to CO, meanwhile NbC/Al2O3 TaC/Al2O3 not active. exhibited selectivity CO over 99.5% temperature above 773 K. The characteristics vanadium carbide particles depended precursor atmosphere heating used during catalyst preparation. XPS characterization revealed presence species...
A new methodology for preparing 3D printing molybdenum carbide-based catalysts with direct ink writing is presented. CO2 conversion experiments through the reverse water gas shift reaction showed that catalytic behavior of 3D-MoxC/Al2O3 controlled by crystallite size and crystalline phase, which in turn were dependent on Mo loading. The formation cubic δ-MoC hexagonal η-Mo3C2 was prevalent small sizes at low loading Mo, α/β-Mo2C larger high Mo. Operando DRIFTS points out hydroxyl species...