A5070090291- TiO2 Photocatalysis and Solar Cells
- Advanced Photocatalysis Techniques
- Transition Metal Oxide Nanomaterials
- Laser-Ablation Synthesis of Nanoparticles
- Quantum Dots Synthesis And Properties
- Electronic and Structural Properties of Oxides
- Electrocatalysts for Energy Conversion
- Gas Sensing Nanomaterials and Sensors
- Laser Material Processing Techniques
- Conducting polymers and applications
- Anodic Oxide Films and Nanostructures
- Diamond and Carbon-based Materials Research
- Electrochemical Analysis and Applications
Institute of Fluid Flow-Machinery
2019-2023
Polish Academy of Sciences
2019-2023
University of Gdańsk
2020
Titanium dioxide nanotubes gain considerable attention as a photoactive material due to chemical stability, photocorrosion resistance, or low-cost manufacturing method. This work presents scalable pulsed laser modification of TiO2 resulting in enhanced photoactivity system equipped with motorized table, which allows for modifications both precisely selected and any-large sample area. Images obtained from scanning electron microscopy along Raman UV–vis spectra laser-treated samples good...
The laser processing of the titania nanotubes has been investigated in terms morphology, structure, and optical properties obtained material. length crystallinity, as well atmosphere treatment, were taken into account. degree changes initial geometry checked by means scanning electron microscopy, which visualizes both surface cross-section. phase conversion from amorphous to anatase achieved for laser-treated material, whereas modification calcined one led distortion within crystal...
Abstract Herein, we combine titania layers with gold species in a laser-supported process and report substantial change of properties the resulting heterostructures depending on major processing parameters. Electrodes were fabricated via an anodisation complemented calcination to ensure crystalline phase, followed by magnetron sputtering metallic films. The obtained TiO 2 nanotubes deposited thin (5, 10 nm) Au films treated UV laser (355 form nanoparticles top nanotubes. It was proven that...
Here, we report significant activity towards the oxygen evolution reaction (OER) of spherical nickel nanoparticles (NPs) electrodeposited onto free-standing TiO2 nanotubes (TNT) via cyclic voltammetry. It has been shown that simple manipulation processing parameters, including scan rate and number cycles, allows for formation NPs in various diameters amounts. The polarization data with respect to transmission electron microscopy (TEM) allowed determination diameter propagation depth Ni...
This work presents pulsed UV laser treatment (355 nm, 2 Hz) of TiO2 nanotubes decorated with chromium oxides. The modification was performed in a system equipped beam homogenizer, and during the irradiation, samples were mounted onto moving motorized table. In such system, both precisely selected areas any large area sample can be modified. Photoelectrochemical tests revealed photoresponse laser-treated up to 1.37- 18-fold under illumination ultraviolet-visible visible light, respectively,...
Despite wide bandgap energy (3.2 eV) that corresponds to the UV-range, titania materials are still widely used in many processes driven by light. Their doping non-metal atoms, modification metal and oxide nanoparticles, deposition of conducting polymers or halides, significantly affect absorption spectra thus makes material more useful when exposed solar Most undertaken efforts based on wet chemistry methods, electrochemical deposition, chemical vapour atomic layer techniques. Those...