A5042688148- Copper-based nanomaterials and applications
- Advanced Photocatalysis Techniques
- ZnO doping and properties
- Electrocatalysts for Energy Conversion
- Surface Chemistry and Catalysis
- Caching and Content Delivery
- Electronic and Structural Properties of Oxides
- Hybrid Renewable Energy Systems
- Nanocluster Synthesis and Applications
- Catalytic Processes in Materials Science
- Ammonia Synthesis and Nitrogen Reduction
- Photosynthetic Processes and Mechanisms
- Advanced battery technologies research
- Molecular Junctions and Nanostructures
- Ga2O3 and related materials
- Gas Sensing Nanomaterials and Sensors
- Solar Thermal and Photovoltaic Systems
Dutch Institute for Fundamental Energy Research
2023-2025
University of Twente
2018-2020
Institute of Nanotechnology
2019
IMS Nanofabrication (Austria)
2019
Several application fields can benefit from solar-hydrogen technologies <italic>via</italic> specific short-term and long-term pathways.
Photoelectrochemical (PEC) solar water splitting has received extensive attention because it promises to provide an alternative and sustainable source of energy. A key challenge is achieve a stable PEC system in either acidic or basic electrolyte without degradation the (photo)electrodes. We have used cubic Cu2O film porous granular bilayer Cu2O/CuO composite with carbon protection layer as photocathode materials. The films were deposited under different conditions, such variation...
Large research efforts have been devoted to optimizing the output of earth-abundant photoabsorbers in solar-to-fuel (S2F) devices. Here, we report a Cu2O/Ga2O3 heterojunction/Si microwire photocathode with an underlying buried radial Si p–n junction, which achieves efficient light harvesting across visible spectrum over 600 nm, reaching external quantum yield for hydrogen generation close 80%, photocurrent onset above +1.35 V vs RHE, density ∼10 mA/cm2 at 0 and ideal regenerative efficiency...
This work demonstrates the influence of high-quality protection layers on Si-Cu2O micropillar arrays created by pulsed laser deposition (PLD), with goal to overcome photodegradation and achieve long-term operation during photoelectrochemical (PEC) water splitting. Sequentially, we assessed planar device designs various design parameters their PEC hydrogen evolution reaction. On substrates, a Cu2O film thickness 600 nm Cu2O/CuO heterojunction layer 5:1 ratio between CuO were found be optimal....
Abstract Commercialization of photoelectrochemical (PEC) water‐splitting devices requires the development large‐area, low‐cost photoanodes with high efficiency and photostability. Herein, we address these challenges by using scalable fabrication techniques porous transport layer (PTLs) electrode supports. We demonstrate deposition W‐doped BiVO 4 on Ti PTLs successive‐ionic‐layer‐adsorption‐and‐reaction methods followed boron treatment chemical bath NiFeOOH co‐catalyst. The use that...
Electrochemical nitrogen reduction reaction (eNRR) is recognized as an alternative green approach to the traditional energy-demanding and fossil-based catalytic processes (e.g. Haber Bosch). In this study, we implement eNRR in a proton exchange membrane (PEM) water electrolyzer which (N2) fed cathode. This operation mode has been suggested way overcome mass transfer limitations, however, there lack of developed evaluation protocols for appropriate product identification. Herein, exemplify...
Wilson Smith opened discussion of the paper by Michael Grätzel: For Cu–Au electrodes, proposed mechanism is that CO2 converted to CO on Au site, then diffuses surface a Cu site where it hydrogenates form higher order products. Given system highly porous
Self-assembled monolayers have been formed of<italic>semithio</italic>-bambusurils that undergo conformational changes to direct all S atoms the gold surface.