Stefano Livraghi
Associate Professor
- Department of Chemistry
- SSD: CHIM/03 - general and inorganic chemistry
- ORCID: orcid.org/0000-0002-2413-1203
Contacts
- 011-670-7831
- stefano.livraghi@unito.it
- Via P. Giuria 9, 5° floor
https://www.epr.unito.it - https://www.chemistry.unito.it/persone/stefano.livraghi
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At
- Department of Chemistry
- Dipartimento di Chimica
- Corsi di studio in
Farmacia - Chimica e tecnologia farmaceutiche - Corso di laurea in Chimica e Tecnologie Chimiche
- Corso di laurea magistrale in Chimica
- Scuola Universitaria Interdipartimentale in Scienze Strategiche (SUISS)
- PhD in Chemical and Materials Sciences
Curriculum vitae
Curriculum Vitae
(0.5 MB) Selected research products
Pubblicazioni 2015-2020
Yurdakal S , Cetinkaya S , Augugliaro V , Palmisano G , Soria J , Sanz J , Torralvo M J , Livraghi S , Giamello E , Garlisi C (2020)
Alkaline treatment as a means to boost the activity of TiO2 in selective photocatalytic processes.
https://iris.unito.it/handle/2318/1768457
Zollo A , Polliotto V , Livraghi S , Giamello E (2020)
Self-Organisation of Copper Species at the Surface of Cu–TiO2 Systems During H2 Evolution Reaction: A Combined Investigation by EPR and Optical Spectroscopy.
https://iris.unito.it/handle/2318/1768345
Chiesa M , Livraghi S , Paganini M C , Salvadori E , Giamello E (2020)
Nitrogen-doped semiconducting oxides. Implications on photochemical, photocatalytic and electronic properties derived from EPR spectroscopy.
https://iris.unito.it/handle/2318/1765154
Polliotto V , Albanese E , Livraghi S , Agnoli S , Pacchioni G , Giamello E (2020)
Structural, electronic and photochemical properties of cerium-doped zirconium titanate.
https://iris.unito.it/handle/2318/1723925
Parrino F , Livraghi S , Giamello E , Ceccato R , Palmisano L (2020)
Role of Hydroxyl, Superoxide, and Nitrate Radicals on the Fate of Bromide Ions in Photocatalytic TiO2 Suspensions.
https://iris.unito.it/handle/2318/1768427
Livraghi S , Paganini M C , Giamello E , Di Liberto G , Tosoni S , Pacchioni G (2019)
Formation of Reversible Adducts by Adsorption of Oxygen on Ce-ZrO2: An Unusual I•2 Ionic Superoxide.
https://iris.unito.it/handle/2318/1723926
Chiesa M , Giamello E , Livraghi S , Paganini M C , Polliotto V , Salvadori E (2019)
Electron magnetic resonance in heterogeneous photocatalysis research.
https://iris.unito.it/handle/2318/1724734
Polliotto V , Livraghi S , Agnoli S , Granozzi G , Giamello E (2019)
Reversible adsorption of oxygen as superoxide ion on cerium doped zirconium titanate.
https://iris.unito.it/handle/2318/1723932
Parrino, Francesco*, Livraghi, Stefano, Giamello, Elio, Palmisano, Leonardo (2018)
The Existence of Nitrate Radicals in Irradiated TiO2Aqueous Suspensions in the Presence of Nitrate Ions.
https://iris.unito.it/handle/2318/1688577
Polliotto, Valeria, Livraghi, Stefano*, Krukowska, Anna, Dozzi, Maria Vittoria, Zaleska-Medynska, Adriana, Selli, Elena, Giamello, Elio (2018)
Copper-Modified TiO2 and ZrTiO4: Cu Oxidation State Evolution during Photocatalytic Hydrogen Production.
https://iris.unito.it/handle/2318/1688572
Polliotto, Valeria, Livraghi, Stefano, Giamello, Elio* (2018)
Electron magnetic resonance as a tool to monitor charge separation and reactivity in photocatalytic materials.
https://iris.unito.it/handle/2318/1688576
Polliotto, Valeria, Albanese, Elisa, Livraghi, Stefano, Pacchioni, Gianfranco, Giamello, Elio (2017)
The photoactive nitrogen impurity in nitrogen-doped zirconium titanate (N-ZrTiO4): A combined electron paramagnetic resonance and density functional theory study.
https://iris.unito.it/handle/2318/1659646
Chiesa, Mario, Livraghi, Stefano, Giamello, Elio, Albanese, Elisa, Pacchioni, Gianfranco (2017)
Ferromagnetic Interactions in Highly Stable, Partially Reduced TiO2: The S=2 State in Anatase.
https://iris.unito.it/handle/2318/1633011
Dozzi, Maria Vittoria, Chiarello, Gian Luca, Pedroni, Matteo, Livraghi, Stefano, Giamello, Elio, Selli, Elena (2017)
High photocatalytic hydrogen production on Cu(II) pre-grafted Pt/TiO2.
https://iris.unito.it/handle/2318/1642809
Polliotto, Valeria, Albanese, Elisa, Livraghi, Stefano, Indyka, Paulina, Sojka, Zbigniew, Pacchioni, Gianfranco, Giamello, Elio (2017)
Fifty-Fifty Zr-Ti Solid Solution with a TiO2-Type Structure: Electronic Structure and Photochemical Properties of Zirconium Titanate ZrTiO4.
https://iris.unito.it/handle/2318/1642776
Chen, Hsin-Yi Tiffany, Livraghi, Stefano, Giamello, Elio, Pacchioni, Gianfranco (2016)
Mechanism of the cyclo-oligomerisation of C2H2 on anatase TiO2 (101) and (001) surfaces and their reduction: An electron paramagnetic resonance and density functional theory study.
https://iris.unito.it/handle/2318/1621656
Livraghi, S, Barbero, N , Agnoli, S , Barolo, C , Granozzi, G , Sauvage, F , Giamello, E (2016)
A multi-technique comparison of the electronic properties of pristine and nitrogen-doped polycrystalline SnO2.
https://iris.unito.it/handle/2318/1617643
Panarelli, Enzo Gabriele, Livraghi, Stefano, Maurelli, Sara, Polliotto, Valeria, Chiesa, Mario, Giamello, Elio (2016)
Role of surface water molecules in stabilizing trapped hole centres in titanium dioxide (anatase) as monitored by electron paramagnetic resonance.
https://iris.unito.it/handle/2318/1621655
Polliotto, Valeria, Morra, Simone, Livraghi, Stefano, Valetti, Francesca, Gilardi, Gianfranco, Giamello, Elio (2016)
Electron transfer and H2 evolution in hybrid systems based on [FeFe]-hydrogenase anchored on modified TiO2.
https://iris.unito.it/handle/2318/1620064
Jakub Jan Biedrzycki, Stefano Livraghi, Ingrid Corazzari, Lorenzo Mino, Giuseppe Spoto, Elio Giamello (2015)
On the Redox Mechanism Operating along C2H2 Self-Assembly at the Surface of TiO2.
https://iris.unito.it/handle/2318/158678
Albanese, Elisa, Di Valentin, Cristiana, Pacchioni, Gianfranco, Sauvage, Frédéric, Livraghi, Stefano, Giamello, Elio (2015)
Nature of Paramagnetic Species in Nitrogen-Doped SnO2: A Combined Electron Paramagnetic Resonance and Density Functional Theory Study.
https://iris.unito.it/handle/2318/1568861
Gionco, Chiara, Paganini, Maria Cristina, Chiesa, Mario, Maurelli, Sara, Livraghi, Stefano, Giamello, Elio (2015)
Cerium doped zirconium dioxide as a potential new photocatalyticmaterial. The role of the preparation method on the propertiesof the material.
https://iris.unito.it/handle/2318/1530694
Gionco, Chiara, Livraghi, Stefano, Maurelli, Sara, Giamello, Elio, Tosoni, Sergio, Di Valentin, Cristiana, Pacchioni, Gianfranco (2015)
Al- and Ga-Doped TiO2, ZrO2, and HfO2: The Nature of O 2p Trapped Holes from a Combined Electron Paramagnetic Resonance (EPR) and Density Functional Theory (DFT) Study.
https://iris.unito.it/handle/2318/1530497
Courses
- CHIMICA GENERALE E INORGANICA E LABORATORIO - Corso A (cognomi A-K) (MFN1163)
Corso di laurea in Chimica e Tecnologie Chimiche - Chimica Generale ed Inorganica (CTF) (FAR0010)
Corsi di studio in
Farmacia - Chimica e tecnologia farmaceutiche - GENERAL AND INORGANIC CHEMISTRY AND LABORATORY (CHI0100)
Corso di laurea in Chimica e Tecnologie Chimiche - SINTESI INORGANICHE (CHI0053)
Corso di laurea magistrale in Chimica
Research topics
https://www.epr.unito.it/
Nel campo della catalisi eterogenea sono stati sviluppati in questi anni due aspetti.
Il primo più inerente al campo della chimica delle superfici e in particolare il lavoro si è concentrato sulla caratterizzazione dell'interazione di piccole molecole (es.H2S, SO2, CS2 C2H2, H2O) con la superficie di ossidi.
Il secondo campo di ricerca riguarda la sintesi e la caratterizzazione di ossidi semiconduttori per applicazioni fotocatalitiche, in particolare utilizzando procedure di drogaggio per modificarne le proprietà chimiche e fisiche. In questo secondo contesto l'attività di ricerca è focalizzata sulla natura dei difetti nei solidi ed il effeto sulle proprietà chimico fisiche dei materiali e sullo studio dei processi di trasferimento dei portatori di carica alle interfacce solido-gas e solido-liquido. Grande attenzione è stata dedicata al sistema TiO2 per la sua importanza nel campo della fotocatalisi ed in particolare ai sistemi di TiO2 drogati con elementi non metallici quali N, B, C ed F al fine di fotosensibilizzare il solido alla componente visibile di lo spettro solare.
The research activity involves the solid state chemistry and in particular the chemistry of the surfaces of the solids and its applications in the field of heterogeneous catalysis. The research activity has also involved the field of hydrogen storage, a sector of strategic importance in the field of renewable energy. The study concerned intermetallic systems (alloys Zr-Ni-V) and the development of additives (mainly ternary systems Mg-Nb-O) to improve the properties of absorption and desorption of hydrogen of the system MgH2.
In the field of heterogeneous catalysis two aspects have been developed in these years.
The first more inherent to the field of surface chemistry and in particular the work was focused on the characterization of the interaction of various molecules (i.e. H2S, SO2, CS2 C2H2, H2O) with the oxides surface.
The second one concerns the synthesis and characterization of semiconducting oxides for photocatalytic applications, in particular using doping procedures to modify its chemical and physical properties. In this second context the research activity is focused on the nature of defects in solids and their role in the catalytic properties of the materials and on the investigation of the processes of charge carriers transfer at the solid-gas and solid-liquid interfaces. Great attention has been spent on the TiO2 system due to its importance in the field of photocatalysis and in particular to TiO2 systems doped with non-metallic elements such as N, B, C and F in order to photosensitize the solid to the visible component of the solar spectrum.
Le attività di ricerca proposte ricadono nel campo della catalisi eterogenea attivata dalla luce. Nel lavoro di tesi lo studente gestirà sia la sintesi che la caratterizzazione di materiali per applicazioni fotocatalitiche. Il lavoro di sintesi avrà come obbiettivo principale l’ingegnerizzazione dei materiali attraverso l’introduzione, o di eterogiunzioni o specifici difetti strutturali al fine di modularne le proprietà chimiche e fisiche. Maggiorni informazioni sono disponibili al seguente indirizzo https://www.epr.unito.it/
The proposed research activities concern the heterogeneous catalysis activated by the light. The main activities of the student will involve both the synthesis and the characterization of materials for photocatalytic applications, either building up heterojunctions or using doping procedures, in order to modify its chemical and physical properties.
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