A5046957889- Oxidative Organic Chemistry Reactions
- Radical Photochemical Reactions
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Polyoxometalates: Synthesis and Applications
- Catalytic C–H Functionalization Methods
- Porphyrin and Phthalocyanine Chemistry
- Luminescence and Fluorescent Materials
- Advanced Photocatalysis Techniques
- Carbon and Quantum Dots Applications
- Advanced Nanomaterials in Catalysis
- TiO2 Photocatalysis and Solar Cells
- Electrocatalysts for Energy Conversion
- Electrochemical sensors and biosensors
- Quantum Dots Synthesis And Properties
- Crystallography and molecular interactions
- Covalent Organic Framework Applications
- Metal-Catalyzed Oxygenation Mechanisms
- Perovskite Materials and Applications
- Molecular Sensors and Ion Detection
- Analytical Chemistry and Sensors
- Innovative Microfluidic and Catalytic Techniques Innovation
- Catalysis and Oxidation Reactions
- Metal-Organic Frameworks: Synthesis and Applications
- Polydiacetylene-based materials and applications
University of Padua
2014-2024
University of Trieste
2015-2021
Institute on Membrane Technology
2021
National Interuniversity Consortium of Materials Science and Technology
2015-2018
Private University in the Principality of Liechtenstein
2017
The design of novel carbon dots with ad hoc properties requires a comprehensive understanding their formation mechanism, which is complex task considering the number variables involved, such as reaction time, structure precursors or synthetic protocol employed. Herein, we systematically investigated nanodots by tracking structural, chemical and photophysical features during hydrothermal synthesis. We demonstrate that consists 4 consecutive steps: (i) aggregation small organic molecules, (ii)...
Abstract We show how the redox potentials of carbon nanodots (CNDs) can be modulated by employing quinones as electroactive precursors during a microwave‐assisted synthesis. prepared and characterized library CNDs, demonstrating that this approach promote use for ad hoc applications, including photocatalysis.
Twelve naphthochromenone photocatalysts (PCs) were synthesized on gram scale. They absorb across the UV/Vis range and feature an extremely wide redox window (up to 3.22 eV) that is accessible using simple visible light irradiation sources (CFL or LED). Their excited-state potentials, PC*/PC.- 1.65 V) PC.+ /PC* -1.77 V vs. SCE), are such these novel PCs can engage in both oxidative reductive quenching mechanisms with strong thermodynamic requirements. The potential of bimodal was benchmarked...
A scalable visible-light [2 + 2]-heterocycloaddition process allows the dearomatisation of indoles to complex biorelevant polycycles.
A bio-inspired Mn(<sc>ii</sc>) complex with a linear pentadentate ligand and an alternating NSNSN coordination displays excellent dual SOD/CAT-like antioxidant activity good stability in aqueous environment.
Abstract We show how the redox potentials of carbon nanodots (CNDs) can be modulated by employing quinones as electroactive precursors during a microwave‐assisted synthesis. prepared and characterized library CNDs, demonstrating that this approach promote use for ad hoc applications, including photocatalysis.
The deposition of perylene diimide-based aggregates (PDI) onto wide band gap n-type Sb-doped SnO2 (ATO) was investigated with the aim finding efficient and versatile dye-sensitized platforms for photoelectrochemical solar fuel generation. These ATO-PDI photoanodes displayed hydrolytic stability in a range pH (from 1 to 13) revealed superior performances (up mA/cm2 net photocurrent at V vs SCE) compared both WO3-PDI undoped SnO2-PDI when used setup HBr splitting. Although ATO, SnO2, WO3 are...
Abstract PSII‐inspired quantasomes have emerged as promising artificial photosystems evolving oxygen from water due to their integrated multi‐chromophore asset, hierarchical architecture, and efficient light‐harvesting capabilities. In this study, we adopt a combined covalent supramolecular strategy by implementing poly‐styrene backbone that reinforces proximity pairing between adjacent perylenebisimide (PBI) quantasome units. The fixation of the network results in significant enhancement...
As the natural-born photoelectrolyzer for oxygen delivery, photosystem II (PSII) is hardly replicated with man-made constructs. However, building on "quantasome" hypothesis ( Science 1964, 144, 1009−1011), PSII mimicry can be pared down to essentials by shaping a photocatalytic ensemble (from Greek term "soma" = body) where visible-light quanta trigger water oxidation. PSII-inspired quantasomes (QS) readily self-assemble into hierarchical photosynthetic nanostacks, made of bis-cationic...
Abstract Perylene‐3,4,9,10‐tetracarboxylic acid bisimides have been widely studied as industrial pigments. Lately, these dyes drawn considerable attention because of applications photocatalysts and organic semi‐conductors. Here, we report a novel method for fast efficient synthesis many different perylenebisimides, based on microwave‐assisted reactions.
The coupling of a polycationic Mn(III)-porphyrin, with dinuclear Mn2(II,II)L2 core (HL = 2-{[[di(2-pyridyl)methyl](methyl)amino]methyl}phenol), results in dual Superoxide Dismutase (SOD) and Catalase (CAT) functional analogue, Mn2L2Pn+, enabling detoxification cascade the superoxide anion hydrogen peroxide into benign H2O O2. SOD/CAT artificial manifolds, joined one asset, exhibit peak catalytic performance under physiological conditions, log kcat(O2• –) ≥ 7 kcat(H2O2)/KM 1890. dual-enzyme...
In view of developing photoelectrosynthetic cells which are able to store solar energy in chemical bonds, water splitting is usually the reaction choice when targeting hydrogen production. However, alternative approaches can be considered, aimed at substituting anodic oxidation with more commercially capitalizable oxidations. Among them, production bromine from bromide ions was investigated long back 1980s by Texas Instruments. Herein we present optimized perylene-diimide (PDI)-sensitized...
COF engineering with a built-in, high concentration of defined N-doped sites overcomes the "black-box" drawback conventional trial-and-error N-doping methods (used in polymeric carbon nitride and graphene), that hamper directed evolution functional interfaces based on structure-reactivity guidelines. The cutting-edge challenge is to dissect many complex interdependent functions originate from reticular N-doping, including modification material optoelectronics, band alignments, interfacial...
Hydrogelation, the self-assembly of molecules into soft, water-loaded networks, is one way to bridge structural gap between single and functional materials. The potential hydrogels, such as those based on perylene bisimides, lies in their chemical, physical, optical, electronic properties, which are governed by supramolecular structure gel. However, motifs precise role for long-range conductivity yet be explored. Here, we present a comprehensive picture bisimide hydrogel, suggesting that its...
The aggregation and the photophysics of a water soluble perylenediimide (PDI) derivative that features two bromine substituents in bay positions has been probed.
Abstract Twelve naphthochromenone photocatalysts (PCs) were synthesized on gram scale. They absorb across the UV/Vis range and feature an extremely wide redox window (up to 3.22 eV) that is accessible using simple visible light irradiation sources (CFL or LED). Their excited‐state potentials, PC*/PC .− 1.65 V) PC .+ /PC* −1.77 V vs. SCE), are such these novel PCs can engage in both oxidative reductive quenching mechanisms with strong thermodynamic requirements. The potential of bimodal was...
Spectroscopy simulations are of paramount importance for the interpretation experimental electronic spectra, disentangling overlapping spectral features, and tracing microscopic origin observed signals. Linear nonlinear based on results drawn from structure calculations that provide necessary parameterization molecular systems probed by light. Here, we investigate applicability excited-state properties obtained linear-response time-dependent density functional theory (TDDFT) in description...
The cobalt substituted polyoxotungstate [Co6 (H2 O)2 (α-B-PW9 O34 )2 (PW6 O26 )]17- (Co6) displays fast electron transfer (ET) kinetics to photogenerated RuIII (bpy)33+ , 4 5 orders of magnitude faster than the corresponding ET observed for oxide nanoparticles. Mechanistic evidence has been acquired indicating that: (i) one-electron oxidation Co6 involves Co(II) aquo or hydroxo groups (abbreviated as Co6(II)-OH2 and Co6(II)-OH, respectively, whose speciation in aqueous solution is associated...
Herein, the synthesis and photophysical redox properties of a new perylene bisimide (PBI) species (L), bearing two 1,10-phenanthroline (phen) ligands at imide positions PBI, its dinuclear Ru(ii) Os(ii) complexes, [(bpy)2Ru(μ-L)Ru(bpy)2](PF6)4 (Ru2; bpy = 2,2'-bipyridine) [(Me2-bpy)2Os(μ-L)Os(Me2-bpy)2](PF6)4 (Os2; Me2-bpy (4,4'-dimethyl)-2,2'-bipyridine), are reported. The absorption spectra compounds dominated by structured bands PBI subunit due to lowest-energy spin-allowed π-π*...
Invited for the cover of this issue are groups Marcella Bonchio at University Padova and Jérôme Canivet CNRS-University Lyon. The image depicts hierarchical self-organization bio-inspired quantasomes, crosslinked within a polystyrene network to enchain their lateral orthogonal proximity long-lasting oxygen evolution using green photons. Read full text article 10.1002/chem.202303784.