Kovtun Alessandro

Position: 
Research Fellow
e-mail: 
Office telephone : 
+39 051 639 8437
Building: 
Isof 12
Floor: 
0
Office number: 
110
Research Unit: 
Advanced Materials
Group: 
Research Fellows
Biography: 

M.Sc. Physics, Università degli studi di Parma (2012), Ph.D. in Physics and Nanoscience, Università degli studi di Modena e Raggio Emilia (2017)
During my PhD in Physics I have installed, calibrated and validated the X-Ray Photoelectron Spectroscopy (XPS) facility at ISOF. PhD thesis link

I currently manage the XPS surface chemistry analysis facility, I am responsible for the scientific activity and technical maintenance. I am in charge of the electrical characterization of Graphene-based composites and devices insiede the Graphene Faghship project. My research work is mainly focused on surface science of Graphene based materials (GBM) in the framework of Graphene Flagship Project. I work on standardization of the characterizion procedures of 2D materials [2], by using X-Ray Photolectron Spectroscopy for qualitative and quantitative analysis. I have proposed a new fit procedure for the quatification of the Oxygen to Carbon ration (O/C) indipendendly from thickness and substrate[1]. I am studying the structure of Graphene Oxide and its covalent chemistry funtionalisations [5,6,7,8]. During my Ph.D I have studied the transport properties of electron of GBM, proposing a unique model for single sheet and thin film Reduced Graphene Oxide. From 2018 I have started to study the ionic and molecualr transport and the associated mechanisms (adsorbtion and intercalation) in GBM for water purification purpose [3,4].

Past positions

R&D Product Engineer, 2013, Kemet Electronics Italia, Sasso Marconi (BO).

Junior Research Assistant, 2012, ESRF, European Synchrotron Radiation Facility, Grenoble (France)

Publications: 

I have published an innovative approach on XPS data analysis focused on quantification of the oxygen content in Graphene Based Materials indipendently from thickness and substratess

Selected Publications:
1. Accurate chemical analysis of graphene-based materials using X-ray photoelectron spectroscopy
A. Kovtun, D. Jones, S. Dell'Elce, E. Treossi, A. Liscio, V. Palermo, Carbon 2019 (143) 268-275.
Open Access link

2. Benchmarking of graphene-based materials: real commercial products versus ideal graphene.
A. Kovtun, E. Treossi, N. Mirotta, A. Scidà, A. Liscio, M. Christian, F. Valorosi, A. Boschi, R.J. Young , C. Galiotis, I.A. Kinloch, V. Morandi, V. Palermo, 2D Mater. 6 (2019) 025006.

3. Graphene oxide-polysulphone filters for tap water purification, obtained by fast microwave oven treatment.
A. Kovtun, M. Zambianchi, C. Bettini, A. Liscio, M. Gazzano, F. Corticelli, E. Treossi, M.L. Navacchia, V. Palermo, M. Melucci. Nanoscale 11 (2019), 22780-22787

4. Core-shell graphene oxide-polymer hollow fibers as water filters with enhanced performance and selectivity.
A. Kovtun, A. Bianchi, M. Zambianchi, C. Bettini, G. Ruani, F. Corticelli, L. Bocchi, F. Stante, M. Gazzano, T. D. Marforio, M. Calvaresi, M. Minelli, M. L. Navacchia, V. Palermo, M. Melucci. Faraday Discussion, (2020) accepted manuscript doi.org/10.1039/C9FD00117D

5. Graphene Oxide Promotes Site-Selective Allylic Alkylation of Thiophenes with Alcohols. L. Favaretto, J. A, M Sambo, A. De Nisi, C Bettini, M. Melucci, A. Kovtun, A. Liscio, V. Palermo, A. Bottoni, F. Zerbetto, M. Calvaresi, M. Bandini Organic Letters, 20 (2018), 705–3709

6. Systematic study of the correlation between surface chemistry, conductivity and electrocatalytic properties of graphene oxide nanosheets. G. Maccaferri, C. Zanardi, Z.Y. Xia, A. Kovtun, A. Liscio, F. Terzi, V. Palermo, R. Seeber, Carbon, 120 (2017) 165-175

7. Dopamine-functionalized graphene oxide as a high-performance material for biosensing. F.Vulcano, A. Kovtun, C. Bettini, Z. Xia, A. Liscio, F. Terzi, A. Heras, A. Colina, B. Zanfrognini, M. Melucci, V. Palermo, C. Zanardi, 2D Materials 7 (2020) 024007

8. Electrochemical sensing of glucose by chitosan modified graphene oxide. F. Poletti, L. Favaretto, A. Kovtun, E. Treossi, F. Corticelli, M. Gazzano, V. Palermo, C. Zanardi, M. MelucciJ. Phys. Mater. 3 (2020) 014011

I have studied by XPS different materials:

A. Silver in metallic form obtained by using Pulsed Plasma Deposition (A. Gambardella, CNR-ISMN/Istituto Ortopedico Rizzoli) and in nanoparticle/2D material.

B. Copper in Azurin for charge transfer models (A. Casalini, UNIPD)

C. Iridium for catalys (W. Oberhauser, CNR-ICCOM)

D. Polydopamine (T. Posati CNR-ISOF) and Poly(3-hexylthiophene) nanoparticles. (F. Di Maria CNR-ISOF)

E. Chemical vapour deposited Graphene (CVD-G) functionalised with pyrene-terminated alkylazide, Diazonium salts or Iron Oxide. (Z. Xia CNR-ISOF)

F. Two-dimensional transition-metal dichalcolgenides (2D-TMDs) WS2. (R. Mastria A. Rizzo CNR-NANO)

Bibliometric Records: 27 JCR Pubblication, H-Index 10 (ISI WOS)
Full publication list: Orcid, Google Scholar, Scopus