A5102002872- Advanced Photocatalysis Techniques
- Electrocatalysts for Energy Conversion
- Copper-based nanomaterials and applications
- Hybrid Renewable Energy Systems
- Gas Sensing Nanomaterials and Sensors
- 2D Materials and Applications
- Advanced battery technologies research
- Quantum Dots Synthesis And Properties
- MXene and MAX Phase Materials
- Gender Politics and Representation
- TiO2 Photocatalysis and Solar Cells
- Fuel Cells and Related Materials
- Hydrogen Storage and Materials
- Electron and X-Ray Spectroscopy Techniques
- Perovskite Materials and Applications
- Semiconductor materials and devices
- Employment and Welfare Studies
- Nanopore and Nanochannel Transport Studies
- Taxation and Compliance Studies
- European Union Policy and Governance
- Carbon Nanotubes in Composites
- Electronic and Structural Properties of Oxides
- Optical Coatings and Gratings
- Electrophoretic Deposition in Materials Science
- Catalytic Processes in Materials Science
Toyota Motor Corporation (Belgium)
2019-2025
École Polytechnique Fédérale de Lausanne
2019-2024
Ghana Education Service
2023
Parliament of United Kingdom
2022-2023
Icahn School of Medicine at Mount Sinai
2022
Toyota Motor North America (United States)
2021
Toyota Motor Corporation (Switzerland)
2020
Institute for Scientific and Technological Research
2006
Los Alamos National Laboratory
2006
Area-selective atomic layer deposition (ALD) is envisioned to play a key role in next-generation semiconductor processing and can also provide new opportunities the field of catalysis. In this work, we developed an approach for area-selective metal oxides on noble metals. Using O2 gas as co-reactant, ALD has been achieved by relying catalytic dissociation oxygen molecules surface, while no takes place inert surfaces that do not dissociate (i.e., SiO2, Al2O3, Au). The process demonstrated...
In this study, we report the synthesis and characterization of nonprecious bimetallic iron–molybdenum sulfide bio-inspired electrocatalysts for hydrogen evolution reaction (HER). Iron–molybdenum materials were obtained through three distinct scalable synthetic approaches using microwave irradiation or heat treatment in furnace under inert reductive atmospheres. These combined with carbon nanotubes (CNTs), their activity (HER) was studied acidic environment. The most efficient composite...
The liquid-phase exfoliation of semiconducting transition metal dichalcogenide (TMD) powders into 2D nanosheets represents a promising route toward the scalable production ultrathin high-performance optoelectronic devices. However, harsh conditions required negatively affect properties, leading to poor device performance. Herein we demonstrate gentle method employing standard bulk MoS2 powder (pressed pellets) together with electrochemical intercalation quaternary alkyl ammonium. resulting...
Gas diffusion electrodes are essential components of common fuel and electrolysis cells but typically made from graphitic carbon or metallic materials, which do not allow light transmittance thus limit the development gas-phase based photoelectrochemical devices. Herein, simple scalable preparation F-doped SnO2 (FTO) coated SiO2 interconnected fiber felt substrates is reported. Using 2-5 µm diameter fibers at a loading 4 mg cm-2 , resulting have porosity 90%, roughness factor 15.8, Young's...
Exfoliated transition metal dichalcogenide (TMD) nanomaterials possess remarkable and tunable semiconducting properties which make them competitive for use in ultrathin, flexible devices such as photodetectors, sensors, photoelectrodes solar energy conversion. Until now, the large-scale production of has presented a challenge that limits their commercialization broad application. We demonstrate here, first time, procedure roll-to-roll (R2R) deposition two-dimensional (2D) TMD nanoflake thin...
Solar hydrogen is a promising sustainable energy vector, and steady progress has been made in the development of photoelectrochemical (PEC) cells. Most research this field focused on using acidic or alkaline liquid electrolytes for ionic transfer. However, performance limited by (i) scattering light blocking catalytic sites gas bubbles (ii) mass transport limitations. An attractive alternative to water feedstock use vapor present as humidity ambient air, which demonstrated mitigate above...
Alkaline water electrolysis is a sustainable way to produce green hydrogen using renewable electricity. Even though the rates of cathodic evolution reaction (HER) are 2–3 orders magnitude less under alkaline conditions than acidic conditions, possibility non-precious metal catalysts makes HER appealing. We identify novel and facile route for substantially improving performance via use commercially available NiTi shape memory alloys, which upon heating undergo phase transformation from...
Photoelectrochemical (PEC) systems are promising approaches for sustainable fuel processing. PEC devices, like conventional photovoltaic-electrolyzer (PV-EC) systems, utilize solar energy splitting water into hydrogen and oxygen. Contrary to PV-EC devices integrate the photoabsorber, ionic membrane, catalysts a single reactor. This integration of elements potentially makes simpler in design, increases efficiency, offers cost advantage, allows implementation with higher flexibility use. We...
Photoelectrochemical (PEC) reactors based on polymer electrolyte membrane (PEM) electrolyzers are an attractive alternative to improve scalability compared conventional monolithic devices. To introduce narrow band gap photoabsorbers such as BiVO4 in PEM–PEC system requires cost-effective and scalable deposition techniques beyond those previously demonstrated FTO-coated glass substrates, followed by the preparation of electrode assemblies. Herein, we address significant challenges coating...
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...
Single bilayer membranes of 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) were formed on micron thin-films hydrophilized carbon nanotubes (CNT) by fusion small unilamellar vesicles. The structure the membrane was investigated using neutron reflectivity (NR). underlying thin film CNT chemical vapor deposition (CVD) in presence Fe catalyst, followed reaction with 5 M nitric acid to render hydrophilic. We demonstrate that this platform lends support homogeneous and continuous have...
Alloying is a powerful tool for fine tuning the optoelectronic properties of 2D TMDs. We present general, solution-processable route scalable production large quantities alloyed TMD nanosheets from commercially available powders.
Building a porous photocathode for solar hydrogen production with earth-abundant materials: silicon nanowires to harvest light, molybdenum sulfide turn protons into hydrogen.
The law is a fundamental arena for advancing gender equality. Parliaments are where laws made, but differential impacts often not explored when draft legislation scrutinised. A range of tools exist to help parliamentarians conduct gender-sensitive ex-ante legislative scrutiny their success relies on parliamentary institutionalisation, localisation measures, political will and leadership, access evidence expertise, practical tools, its application all laws, men, government practice. Blind...
Bismuth vanadate (BiVO 4 ), a material known for its high visible light activity and good stability, is promising candidate as photoanode overall water splitting [1]. Its performance limited by relatively short charge carrier diffusion length, which has recently been estimated to be ~15 nm [2]. For these kinds of photo-absorbers, commercial flat transparent conducting oxide (TCO) substrates are unsuitable since the thickness needed absorb sufficient amount far exceeds length. With this in...
Welfare package has gained popularity in keeping employees’ motivation levels high and accordingly help improve their performance, both at work home. Although it become a concern as motivational tool for enhancing productivity the education sector, extant research considered other forms of packages higher educational system. The study, therefore, used Maslow Hierarchy Theory cross-sectional survey design to evaluate impact welfare on public school teachers’ ability deliver high-quality...
Monitoring evidence diversity in parliamentTo address concerns pertaining to the of views, parliaments (especially UK) are increasingly collecting and monitoring data on witnesses evidence.The House Commons has collected various gender giving oral select committees since 2013.For
The exceptional semiconducting properties of exfoliated transition metal dichalcogenide (TMDs) nanosheets have long inspired their use in photoelectrochemical applications; particular, photoelectrodes for solar-to-chemical energy conversion. Indeed, past demonstrations using non-exfoliated, bulk material gave solar-to-hydrogen efficiencies greater than 7%. 1 In taking advantage the exfoliable nature these materials, nano-TMDs not only provide a new range tunable optoelectronic properties,...
Many factors contribute to persistent intractable disparities in health care, but the geographic separation of care executives and patient communities has not been explored. From Congresspeople police officers, individuals engaged public service often face criticism for living neighborhoods where they work. These critiques stem from belief that engage meaningfully with a community, one understand its experiences share interests-and proximity offers opportunity bridge such divides. This...