Please login first
Ettore Fois   Professor  Other 
Timeline See timeline
Ettore Fois published an article in February 2018.
Top co-authors See all
Valter Maurino

246 shared publications

Department of Chemistry and Interdepartmental Centre of Excellence “Nanostructured Interfaces and Surfaces-NIS”, University of Torino, via P. Giuria 7,10125 Torino,Italy

Roberta Seraglia

180 shared publications

Department of Chemistry, CNR‐ISTM and INSTM and Padova University, 35131 Padova (Italy)

Margherita Venturi

173 shared publications

Chiara Maccato

161 shared publications

Department of Chemistry, Padova University and INSTM, Padova, Italy

Gianmario Martra

151 shared publications

Department of Chemistry and Interdepartmental Centre of Excellence “Nanostructured Interfaces and Surfaces-NIS”, University of Torino, via P. Giuria 7,10125 Torino,Italy

71
Publications
0
Reads
0
Downloads
199
Citations
Publication Record
Distribution of Articles published per year 
(1982 - 2018)
Total number of journals
published in
 
32
 
Publications See all
Article 0 Reads 2 Citations Structure and Host–Guest Interactions of Perylene–Diimide Dyes in Zeolite L Nanochannels Lara Gigli, Rossella Arletti, Gloria Tabacchi, Marco Fabbian... Published: 06 February 2018
The Journal of Physical Chemistry C, doi: 10.1021/acs.jpcc.7b10607
DOI See at publisher website
ABS Show/hide abstract
Confinement-driven self-assembly of dyes in nanomatrices is an effective route for the production of hybrid supramolecular structures of high technological relevance, among which the archetypal zeolite L-based systems are exploited in Forster Resonance Energy Transfer (FRET)-sensitized solar cells, luminescent solar concentrators, color-changing media, but also sensing in analytical chemistry, biology, and diagnostics. Despite this progress in applications, the organization of confined chromophores in zeolite L materials remains elusive. Herein, by integrating experiments with different time scale and radiation source (IR, XRPD, Total Scattering) with first-principles DFT modeling, we attained a microscopically detailed picture of a technologically important hybrid composite of Zeolite L with a perylene-diimide (also known as perylene-bisimide) dye at both hydrated and anhydrous conditions. The asymmetric positioning of the dye in the zeolite channel is determined by two factors: shape-volume constraints, and relative strength of competitive interactions among confined species. Our multi-technique experimental-theoretical approach thoroughly described the supramolecular chemistry of this hybrid material, identifiying possible strategies to further enhance FRET efficiency and improve functionality. This work deepens the understanding of host-guest interactions in dye-Zeolite L composites, a key requirement to master the finely-tuned mechanisms governing supramolecular organization in confined nanospaces.
Article 0 Reads 1 Citation Unravelling the High-Pressure Behaviour of Dye-Zeolite L Hybrid Materials Lara Gigli, Rossella Arletti, Ettore Fois, Gloria Tabacchi, ... Published: 02 February 2018
Crystals, doi: 10.3390/cryst8020079
DOI See at publisher website
ABS Show/hide abstract
Self-assembly of chromophores nanoconfined in porous materials such as zeolite L has led to technologically relevant host-guest systems exploited in solar energy harvesting, photonics, nanodiagnostics and information technology. The response of these hybrid materials to compression, which would be crucial to enhance their application range, has never been explored to date. By a joint high-pressure in situ synchrotron X-ray powder diffraction and ab initio molecular dynamics approach, herein we unravel the high-pressure behaviour of hybrid composites of zeolite L with fluorenone dye. High-pressure experiments were performed up to 6 GPa using non-penetrating pressure transmitting media to study the effect of dye loading on the structural properties of the materials under compression. Computational modelling provided molecular-level insight on the response to compression of the confined dye assemblies, evidencing a pressure-induced strengthening of the interaction between the fluorenone carbonyl group and zeolite L potassium cations. Our results reveal an impressive stability of the fluorenone-zeolite L composites at GPa pressures. The remarkable resilience of the supramolecular organization of dye molecules hyperconfined in zeolite L channels may open the way to the realization of optical devices able to maintain their functionality under extreme conditions.
Article 0 Reads 1 Citation Manganese(II) Molecular Sources for Plasma-Assisted CVD of Mn Oxides and Fluorides: From Precursors to Growth Process Davide Barreca, Giorgio Carraro, Ettore Fois, Alberto Gaspar... Published: 04 January 2018
The Journal of Physical Chemistry C, doi: 10.1021/acs.jpcc.7b10277
DOI See at publisher website
ABS Show/hide abstract
A viable route to manganese-based materials of high technological interest is Plasma Assisted-Chemical Vapor Deposition (PA-CVD), offering various degrees of freedom for the growth of high-purity nanostructures from suitable precursors. In this regard, fluorinated β-diketonate diamine Mn(II) complexes of general formula Mn(dik)2•TMEDA [TMEDA = N,N,N’,N’-tetramethylethylenediamine; Hdik = 1,1,1,5,5,5-hexafluoro-2,4-pentanedione (Hhfa), or 1,1,1-trifluoro-2,4-pentanedione (Htfa)] represent a valuable option in the quest of candidate molecular sources for PA-CVD environments. In this work, we investigate and highlight the chemico-physical properties of these compounds of importance for their use in PA-CVD processes, through the use of a comprehensive experimental–theoretical investigation. Preliminary PA-CVD validation shows the possibility of varying the Mn oxidation state, as well as the system chemical composition from MnF2 to MnO2, by simple modulations of the reaction atmosphere, paving the way to a successful utilization of the target compounds in the growth of manganese-containing nanomaterials for different technological applications.
Article 0 Reads 3 Citations Molecular Engineering of Mn II Diamine Diketonate Precursors for the Vapor Deposition of Manganese Oxide Nanostructures Chiara Maccato, Lorenzo Bigiani, Giorgio Carraro, Alberto Ga... Published: 22 November 2017
Chemistry - A European Journal, doi: 10.1002/chem.201703423
DOI See at publisher website
PubMed View at PubMed
ABS Show/hide abstract
Molecular engineering of manganese(II) diamine diketonate precursors is a key issue for their use in the vapor deposition of manganese oxide materials. Herein, two closely related β-diketonate diamine MnII adducts with different fluorine contents in the diketonate ligands are examined. The target compounds were synthesized by a simple procedure and, for the first time, thoroughly characterized by a joint experimental–theoretical approach, to understand the influence of the ligand on their structures, electronic properties, thermal behavior, and reactivity. The target compounds are monomeric and exhibit a pseudo-octahedral coordination of the MnII centers, with differences in their structure and fragmentation processes related to the ligand nature. Both complexes can be readily vaporized without premature side decompositions, a favorable feature for their use as precursors for chemical vapor deposition (CVD) or atomic layer deposition applications. Preliminary CVD experiments at moderate growth temperatures enabled the fabrication of high-purity, single-phase Mn3O4 nanosystems with tailored morphology, which hold great promise for various technological applications.
Article 0 Reads 0 Citations Solvent-free synthesis of Ser–His dipeptide from non-activated amino acids and its potential function as organocatalyst Marco Fabbiani, Erica Rebba, Marco Pazzi, Marco Vincenti, Et... Published: 11 November 2017
Research on Chemical Intermediates, doi: 10.1007/s11164-017-3198-7
DOI See at publisher website
Article 0 Reads 0 Citations Selected Peer-Reviewed Articles from the VI Workshop on Oxide-Based Materials “Perspectives in Material Science and Tech... Domenico Caputo, Ettore Fois, Leonardo Marchese Published: 01 June 2017
Advanced Science Letters, doi: 10.1166/asl.2017.9038
DOI See at publisher website