A5040513262- Catalytic Processes in Materials Science
- Catalysts for Methane Reforming
- Cultural Heritage Materials Analysis
- Building materials and conservation
- Catalysis and Hydrodesulfurization Studies
- Catalysis and Oxidation Reactions
- Electrocatalysts for Energy Conversion
- Conservation Techniques and Studies
- Corrosion Behavior and Inhibition
- Layered Double Hydroxides Synthesis and Applications
- Supercapacitor Materials and Fabrication
- Catalysis for Biomass Conversion
- Drug Solubulity and Delivery Systems
- Crystallization and Solubility Studies
- Nanomaterials for catalytic reactions
- Carbon dioxide utilization in catalysis
- Analytical Chemistry and Chromatography
- Mineralogy and Gemology Studies
- Molecular Spectroscopy and Structure
- Advanced Drug Delivery Systems
- Environmental remediation with nanomaterials
- CO2 Reduction Techniques and Catalysts
- Maritime and Coastal Archaeology
- Oxidative Organic Chemistry Reactions
- Crystallography and molecular interactions
University of Bologna
2012-2023
Ono Pharmaceutical (Japan)
2018-2019
Industriale Chimica (Italy)
2014
Abstract ‘Green earths’ are employed since antiquity as pigments in the creation of artworks. The minerals responsible for colour belong to four groups: (1) clayey micas celadonite and glauconite, undoubtedly most common; (2) smectites; (3) chlorites; (4) serpentines. Whereas there have been several studies on materials, mineralogical analyses field cultural heritage mainly limited identification green earth without specific characterization species. This work shows a preliminary by...
Abstract The reactivity of Au and AuBi nanoparticles supported on activated carbon AC was investigated in the direct oxidation glucose to glucaric acid. catalysts were very active, regardless size, but catalyst with smallest average particle diameter least selective acid because enhanced consecutive oxidative degradation intermediately formed gluconic reaction network included fast acid, which only primary product, its into either or lighter mono dicarboxylic acids. best yield obtained a...
The electrochemical transformation of biomass-derived compounds (e.g., aldehyde electroreduction to alcohols) is gaining increasing interest due the sustainability this process that can be exploited produce value-added products from biowastes and renewable electricity. In framework, conversion 5-hydroxymethylfurfural (HMF) 2,5-bis(hydroxymethyl)furan (BHMF) studied. Nanostructured Ag deposited on Cu an active selective electrocatalyst for formation BHMF in basic media. However, catalyst...
Abstract Raman microscopy (RM) was applied to an ongoing study of prehistoric pigments employed in Palaeolithic wall paintings the Roucadour Cave (France). Micro‐samplings were carried out on parts red or black painted figures representing animals and also negative human hands. These first analyses showed that all micro‐samples, main pigment is haematite. Where tone dark red, well‐formed crystals haematite identified, but magnetite, Mn oxide carbon grains found. An intermediate mineral phase...
The characterization of corrosion patinas on bronzes is preliminarily connected to the determination proper conservation strategies. Moreover, it also provides an essential contribution comprehension mechanisms formation patinas. Concerning last aspect, several studies highlighted that bronze behaviour cannot be assimilated pure copper. In particular, decuprification and relative enrichment tin in layers were observed. Tin therefore, together with its insoluble salts, plays important role...
The electrocatalytic reduction of 5-hydroxymethylfurfural (HMF) is highly selective to 2,5-bishydroxymethylfuran (BHMF) at pH=9.2, diluted HMF solutions, and low current densities. In this work, the electrochemical 0.05 m solutions was investigated in 5-50 mA cm-2 density range over an AgCu foam electrocatalyst. selectivity towards formation BHMF or dimerization depended on density, likely due differences electrode potential, reaction time. Operating densities 40-50 allowed find a trade-off...
Glucose electrochemical oxidation toward gluconic and glucaric acids over innovative NiO/Ni 3D foam, a mechanism investigation.
Abstract The electrocatalytic conversion of 5‐hydroxymethylfurfural (HMF), a biomass platform molecule, to 2,5‐bis(hydroxymethyl)furan (BHMF), polymer precursor, is fully sustainable route that operates at room temperature and pressure, using water as source hydrogen, avoids high H 2 pressures. In this work, we investigate the use 3D electrocatalysts, made by Ag 0 electrodeposited on Cu open‐cell foams (Ag/Cu), improve efficiency in electrochemical HMF BHMF basic media different...
Impact of stabilisers on the catalytic performance supported Au colloidal nanoparticles for liquid phase oxidation glucose to glucaric acid.
The renewable electricity-driven electrocatalytic hydrogenation of biomass-derived furanic compounds produces biopolymer (polyurethane) precursors under mild reaction conditions. widely used Ag and Cu electrocatalysts failed in the selective conversion aldehyde into alcohol concentrated electrolytes due to contribution electrodimerization. Herein, we proposed 3D CeO2-based catalysts for 5-hydroxymethylfurfural (HMF) (0.02, 0.05, 0.10 M) 2,5-bishydroxymethylfuran (BHMF). An electrodeposition...
Pd-In2O3 catalysts are among the most promising alternatives to Cu-ZnO-Al2O3 for synthesis of CH3OH from CO2. However, intrinsic activity and stability In2O3 per unit mass should be increased reduce content this scarcely available element enhance catalyst lifetime. Herein, we propose demonstrate a strategy obtaining highly dispersed Pd nanoparticles onto an Al2O3 matrix by one-step coprecipitation followed calcination activation. The is comparable with that (0.52 vs. 0.55 gMeOH h-1 gcat-1 at...
Raman microspectroscopy was adopted for the study of black gloss coatings on Roman pottery, found in Rimini (northern Italy) and Suasa, near Ancona (central Italy), dated second century B.C. This non-destructive technique allowed a very accurate analysis crystalline amorphous components thin surface layers. The investigated coating is black, homogeneous glazed, without any crystals, becoming red approaching to ceramic body. Magnetite carbon are main phases zones, whereas hercynite, quartz,...
Electrodeposited Pd–CeO<sub>2</sub>on high pore density foams shows activity and stability for environmental processes outstanding mass transport properties.
Supported on activated carbon gold colloidal nanoparticles have been prepared in the presence of stabilizing polymer PVA and PVP (polyvinylalcohol, polyvinylpyrrolidone). The effect to Au weight ratio was investigated, for synthesizing with different particle size distribution. By varying polymer/Au wt/wt ratio, mean diameters from 3 8 nm were synthesized. synthesized catalysts studied liquid phase oxidation 1,6-hexanediol (HDO) adipic acid under base base-free conditions. A range...