A5006570805- Gas Sensing Nanomaterials and Sensors
- Transition Metal Oxide Nanomaterials
- Analytical Chemistry and Sensors
- Carbon Nanotubes in Composites
- Advanced Chemical Sensor Technologies
- Gold and Silver Nanoparticles Synthesis and Applications
- Advanced Nanomaterials in Catalysis
- Fullerene Chemistry and Applications
- Diamond and Carbon-based Materials Research
- Nuclear Physics and Applications
- Laser-induced spectroscopy and plasma
- Nanocluster Synthesis and Applications
- Polydiacetylene-based materials and applications
- Electron and X-Ray Spectroscopy Techniques
University of Padua
2014-2020
Center for Biomolecular Nanotechnologies
2017-2018
National Research Council
2018
Palladium nanoparticles (NPs) have received tremendous attention over the years due to their high catalytic activity for various chemical reactions. However, unlike other noble metal such as Au and Ag NPs, they exhibit poor plasmonic properties with broad extinction spectra less scattering efficiency, thus limiting applications in field of plasmonics. Therefore, it has been challenging integrate tunable strong into Pd nanoparticles. Here we show that Au@Pd nanorods (NRs) relatively narrow...
We present the optical properties of nanocomposite nickel - carbonaceous (Ni-C) and carbon nanotubes, palladium-fullerene (CNT- Ni-Pd) films obtained by various methods. The initial film was prepared physical vapor deposition (PVD) method using two separated sources: fullerene C60 (as source) acetate metal source). Next, modified chemical (CVD) xylene at temperature ∼ 650 °C, as a result nanotubes containing inside Ni grains were synthesized. Then, on deposited PVD process, these samples...
In this work for the first time, we report use of molybdenum oxide (MoO3) nanoflakes on gold as active material plasmonic optical gas sensor. The MoO3 flakes were deposited over a monolayer nanoparticles, chemically attached to functionalized fused silica substrate. coupling between and nanoparticles led reversible changes localized surface plasmon resonance upon exposure H2.
Solution processed TiO2 anatase film was used as sensitive layer for H2 detection two plasmonic sensor configurations: A grating-coupled surface plasmon resonance and a localized with gold nanoparticles. The main purpose of this paper is to elucidate the different response observed types sensors which can be explained considering hydrogen dissociation taking place on at high temperature photocatalytic activity
Metallic films of palladium (Pd) and palladium-tin (Pd-Sn) have been deposited by evaporation technique. They were used as sensitive material for optical sensor measuring the variation absorbance. All samples then oxidized annealing at 500°C in low vacuum atmosphere. investigated X-Ray Diffraction (XRD), Atomic Force Microscopy (AFM) to observe influence structure morphology on properties films, carrying useful information sensing different materials. Furthermore, performances tested...
Large attention has been directed toward carbon nanotubes as material for chemical sensors. However, little was paid the different behavior of metallic and semiconductive optical sensing materials. Semiconductive or Single Wall Carbon Nanotubes (SWCNTs) have deposited on gold nanoparticles (NPs) monolayer used plasmonic based gas sensor. The coupling between SWCNTs Au NPs aim combining reactivity towards hazardous gases, such H2, CO, NO2, with Localized Surface Plasmon Resonance (LSPR) NPs....