A5054986009- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- Gas Sensing Nanomaterials and Sensors
- Electronic and Structural Properties of Oxides
- Copper-based nanomaterials and applications
- Quantum Dots Synthesis And Properties
- Magnetic and transport properties of perovskites and related materials
- Advancements in Solid Oxide Fuel Cells
- Advanced Photocatalysis Techniques
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Luminescence Properties of Advanced Materials
- ZnO doping and properties
- TiO2 Photocatalysis and Solar Cells
- Transition Metal Oxide Nanomaterials
- Chalcogenide Semiconductor Thin Films
- Nanomaterials for catalytic reactions
- Analytical Chemistry and Sensors
- Luminescence and Fluorescent Materials
- Nanoplatforms for cancer theranostics
- Catalysts for Methane Reforming
- Lanthanide and Transition Metal Complexes
- Electrocatalysts for Energy Conversion
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Catalysis and Hydrodesulfurization Studies
University of Padua
2016-2025
Institute of Condensed Matter Chemistry and Technologies for Energy
2016-2025
Consorzio Roma Ricerche
2025
National Research Council
2018-2024
National Interuniversity Consortium of Materials Science and Technology
2008-2020
National Research Council
2020
Institute for Energetics and Interphases
2013-2016
Binghamton University
2015
Institute of Molecular Science and Technologies
2010-2012
University of Stuttgart
2007
Upconversion nanoparticles (UCNPs) are some of the most promising nanomaterials for bioanalytical and biomedical applications. One important challenge to be still solved is how UCNPs can optimally implemented into Förster resonance energy transfer (FRET) biosensing bioimaging highly sensitive, wash-free, multiplexed, accurate, precise quantitative analysis biomolecules biomolecular interactions. The many possible UCNP architectures composed a core multiple shells doped with different...
Development of high-entropy alloy (HEA) films is a promising and cost-effective way to incorporate these materials superior properties in harsh environments. In this work, refractory (RHEA) film equimolar CuMoTaWV was deposited on silicon 304 stainless-steel substrates using DC-magnetron sputtering. A sputtering target developed by partial sintering an powder mixture Cu, Mo, Ta, W, V spark plasma sintering. The used sputter nanocrystalline RHEA with thickness ∼900 nm average grain size 18...
Hydrogen production as alternative energy source is still a challenge due to the lack of efficient and inexpensive catalysts, platinum. Thus, stable, earth abundant, catalysts are prime need for hydrogen via evolution reaction (HER). Herein, we present an stable electrocatalyst composed abundant TiO2 nanorods decorated with molybdenum disulfide thin nanosheets, few nanometers thick. We grew rutile hydrothermal method on conducting glass substrate, then nucleated nanosheets top layer. This...
An inorganic wide-bandgap hole transport layer (HTL), copper(I) thiocyanate (CuSCN), is employed in planar hydrothermally deposited Sb
In this paper, the interaction between cobalt oxides (Co3O4 and CoO) methanol is studied. CoO was obtained by heating under high-vacuum (HV) conditions characterized X-ray photoelectron spectroscopy (XPS). The Co3O4 powder sample means of XPS, diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy, diffraction (XRD), thermal analysis. studied both at atmospheric pressure (by DRIFT spectroscopy) HV XPS quadrupolar mass QMS), whereas chemisorption on surface only conditions....
Three nanostructured cerium(IV) oxide powders were synthesized by two different synthetic routes: samples obtained precipitation from a basic solution of cerium nitrate and treated at 523 923 K, respectively, the third one was prepared microwave-assisted heating hydrolysis method K. The characterized means X-ray diffraction (XRD), transmission electron microscopy (TEM), photoelectron (XPS), diffuse reflectance infrared Fourier transform (DRIFT) spectroscopic techniques, thermal analysis,...
La0.6Sr0.4Co1−yFeyO3−δ (y = 0.2, 0.5, 0.8) perovskite-type oxide powders were prepared by the citrate gel method with aim of investigating influence cobalt/iron atomic ratio on chemical and structural properties as well catalytic activity. The samples characterized means X-ray diffraction (XRD), photoelectron spectroscopy (XPS), thermal analysis, Kr physisorption surface area, scanning electron microscopy (SEM), temperature programmed reduction (TPR). XRD outcomes reveal formation perovskite...
We investigate the photoelectron transfer rate from PbS@CdS core@shell QDs to wide bandgap mesoporous films using photoluminescence lifetime spectroscopy, which is strongly size, shell thickness and oxide dependent.
We demonstrate a fast and large area-scalable methodology for the fabrication of efficient dye sensitized solar cells by simple addition graphene micro-platelets to TiO<sub>2</sub>nanoparticulate paste. Photoconversion efficiency as high 8.8% is obtained in optimized system.
Hydrogen evolution reaction through electrolysis holds great potential as a clean, renewable, and sustainable energy source. Platinum-based catalysts are the most efficient to catalyze convert water into molecular hydrogen; however, their large-scale application is prevented by scarcity cost of Pt. In this work, we propose new ternary composite Ag2S, MoS2, reduced graphene oxide (RGO) flakes via one-pot synthesis. The RGO support assists growth two-dimensional MoS2 nanosheets partially...
Catalysts capable of improving the performance oxygen evolution reaction (OER) and reduction reactions (ORR) are essential for advancement renewable energy technologies. Herein, Ag-decorated vertically aligned MoS2 nanoflakes developed via magnetron co-sputtering investigated as electrocatalyst towards OER ORR. Due to presence silver, catalyst shows more than 1.5 times an increase in roughness-normalized rate OER, featuring a very low Tafel slope (58.6 mv dec−1), thus suggesting that surface...
The precise detection of flammable and explosive gases vapors remains an important issue because the increasing demand for renewable energy sources safety requirements in industrial processes. Metal oxides (TiO2, SnO2, ZnO, etc.) are very attractive materials manufacturing chemical gas sensors. However, their selectivity issues further improvement sensing response remain a significant challenge. incorporation metal with two-dimensional (2D) graphene oxide (GO) is considered to be promising...
Two nanocomposite oxides, NiO/Co3O4 and Fe2O3/Co3O4, are considered. The oxides were obtained by wet impregnation characterized means of X-ray photoelectron spectroscopy (XPS), diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy, diffraction (XRD), thermal analysis, atomic force microscopy (AFM), transmission electron (TEM). images suggest a different growing mechanism for the Fe2O3/Co3O4 oxides: small clusters iron oxide surface Co3O4, whereas NiO grows as isolated particles...
Abstract Layered multi-oxide concept was applied for fabrication of photoanodes dye-sensitized solar cells based on ZnO and SnO 2 , capitalizing the beneficial properties each oxide. The effect different combinations ZnO@SnO layers investigated, aimed at exploiting high carrier mobility provided by higher stability under UV irradiation pledged . Bi-oxide performed much better in terms photoconversion efficiency ( PCE ) (4.96%) compared to bare (1.20%) (1.03%). Synergistic cooperation is...
A simple and cheap wet chemical approach is exploited to synthesize LaFe1-xGaxO3 (x = 0–1) crystalline perovskites. Ga doping level deeply influences not only the microstructure, but also iron features consequently responses external chemicals. Sensitivity toward gases (NO2, CO, ethanol), in fact, driven by both Fe/Ga ratio oxidation states, which are demonstrated playing a role much stronger than morphological parameters, such as grain size specific surface area, usually dominating...
Graphene oxide (GO) and reduced graphene (RGO) have unique properties that can revolutionize the performances of functional devices. Graphene-based materials be coupled with metal nanomaterials for gas-sensing applications. In this work, we report synthesis a composite material based on RGO-loaded TiO2 nanotubes. To properly tune reduction GO to RGO, adopted gas-phase process applied in situ each gas sensor device, allowing one track effects through conductance. We systematically...
ZnS nanoparticles (NPs) were synthesized using a simple, green, and reproducible hydrothermal method. Transmission electron micrographs show polyhedral NPs having an average diameter of 21 nm; whereas the X-ray diffraction analysis is consistent with exclusive presence cubic ZnS; however no oxide could be detected. A comprehensive characterization NPs' surface was accomplished through photoelectron spectroscopy, diffuse reflectance infrared Fourier transform spectroscopy (DRIFT), Raman,...