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Alberto Vertova obtained his “cum laude” graduation in Industrial Chemistry at the University of Milan in 1989. In 1990 he obtained a PhD scholarship in Industrial Chemistry at the University of Milano and in 1994 received his PhD in Industrial Chemistry. In 2000 he was a visiting scholar at the University of Tokyo. He joined the Group of Prof. Y. Umezawa, Laboratory of Analytical Chemistry - Department of Chemistry, working on new chemically modified sensors. He collaborated also with Prof. Dimitri Khoshtariya (Tbilisi State University – Georgia) for the development of investigation methodologies for the determination of the electron transfer rate as function of the modification of the electrode surface. In the last years AV has focused his interest on different fields of applied electrochemistry: electrocatalysis, photoelectrochemistry, electrochemical environmental treatments, new nanostructured materials for energetic and environmental applications, biosensors and for his research in the field of batteries. AV obtained two grants from MIUR (Prin 2008: 2008PF9TWZ) and from Cariplo Foundation (2010/0506). AV is an Associate Professor at the Dipartimento di Chimica at the Università degli Studi di Milano and a member of the Board of the Doctoral School in Chemistry. AV obtained his National Scientific Qualification for Full Professor in 2018
The hydrogen economy relies on effective and environmentally friendly processes for energy conversion and storage. To this end, hydrogen is progressively holding the role of preferred energy vector. Within this frame, electrochemical science and technology is actively contributing in developing advanced fuel cells and water electrolyzers to be integrated in (i) energy parks to decouple production and consumption; (ii) exploit renewable sources; (iii) favour the progressive reduction of fossil fuels and reduce the greenhouse effect via decarbonization. The exploitation of the relevant processes and devices call for the sound control over the environmental impact from production to end-of-life steps. Here, life-cycle analyses were performed and discussed focusing on both acid and alkaline fuel cells, i.e., proton exchange membrane fuel cells (PEMFC) and anion-exchange membrane fuel cells (AEMFC), and assessing their contribution to key environmental impact categories such as, for example, global warming and ozone layer depletion. Within these premises, the study points to the benefits of replacing platinum by low load Pd/CeO2 bifunctional electrocatalyst on electrochemical hydrogen production and usage.
Simone Minelli; Michele Civelli; Sandra Rondinini; Alessandro Minguzzi; Alberto Vertova. AEMFC Exploiting a Pd/CeO2-Based Anode Compared to Classic PEMFC via LCA Analysis. Hydrogen 2021, 2, 246 -261.
AMA StyleSimone Minelli, Michele Civelli, Sandra Rondinini, Alessandro Minguzzi, Alberto Vertova. AEMFC Exploiting a Pd/CeO2-Based Anode Compared to Classic PEMFC via LCA Analysis. Hydrogen. 2021; 2 (3):246-261.
Chicago/Turabian StyleSimone Minelli; Michele Civelli; Sandra Rondinini; Alessandro Minguzzi; Alberto Vertova. 2021. "AEMFC Exploiting a Pd/CeO2-Based Anode Compared to Classic PEMFC via LCA Analysis." Hydrogen 2, no. 3: 246-261.
Molecular platinum clusters can be used for the synthesis of very small (ca. 1.5 nm) Pt nanoparticles with enhanced catalytic activity and stability towards the oxygen reduction reaction. The Pt–C interactions were characterized by TEM and EXAFS.
Martina Fracchia; Paolo Ghigna; Marcello Marelli; Marco Scavini; Alberto Vertova; Sandra Rondinini; Roberto Della Pergola; Alessandro Minguzzi. Molecular cluster route for the facile synthesis of a stable and active Pt nanoparticle catalyst. New Journal of Chemistry 2021, 45, 11292 -11303.
AMA StyleMartina Fracchia, Paolo Ghigna, Marcello Marelli, Marco Scavini, Alberto Vertova, Sandra Rondinini, Roberto Della Pergola, Alessandro Minguzzi. Molecular cluster route for the facile synthesis of a stable and active Pt nanoparticle catalyst. New Journal of Chemistry. 2021; 45 (25):11292-11303.
Chicago/Turabian StyleMartina Fracchia; Paolo Ghigna; Marcello Marelli; Marco Scavini; Alberto Vertova; Sandra Rondinini; Roberto Della Pergola; Alessandro Minguzzi. 2021. "Molecular cluster route for the facile synthesis of a stable and active Pt nanoparticle catalyst." New Journal of Chemistry 45, no. 25: 11292-11303.
This work reports the electroreduction of a volatile organic halide (trichloromethane) from an airborn stream. In the past years we highlighted the role of polycrystalline silver as powerful electrocatalyst for the electroreductive hydrodehalogenation of volatile organic halides (VOH) in water/organic solvent mixtures, from 0 to 100% of the aqueous component. The successful conversion of trichloromethane and 1,1,1‐trichloethane to the relevant dehalogenated compounds, methane and ethane have prompted us to extend the investigations to the treatment of gaseous effluents, adopting a silver Gas Diffusion Electrode (Ag‐GDE) and the appropriate cell design. In the field of electroreduction processes the possibility of using GDE to treat gaseous effluents for the removal of volatile organic pollutants represents an electrochemical challenge, and the treatment of N 2 /CHCl 3 gas mixtures fed into the cathodic Ag‐GDE compartment demonstrates the feasibility of the electroreductive detoxification process. Our results will be presented and discussed in terms of CHCl 3 removal efficiency, selectivity and energy consumption in preparative electrolyses.
Sandra Rondinini; Eleonora Pargoletti; Alberto Vertova; Alessandro Minguzzi. Hydrodehalogenation of Polychloromethanes on Silver‐Based Gas Diffusion Electrodes. ChemElectroChem 2021, 8, 1892 -1898.
AMA StyleSandra Rondinini, Eleonora Pargoletti, Alberto Vertova, Alessandro Minguzzi. Hydrodehalogenation of Polychloromethanes on Silver‐Based Gas Diffusion Electrodes. ChemElectroChem. 2021; 8 (10):1892-1898.
Chicago/Turabian StyleSandra Rondinini; Eleonora Pargoletti; Alberto Vertova; Alessandro Minguzzi. 2021. "Hydrodehalogenation of Polychloromethanes on Silver‐Based Gas Diffusion Electrodes." ChemElectroChem 8, no. 10: 1892-1898.
One of the major drawbacks in Lithium-air batteries is the sluggish kinetics of the oxygen reduction reaction (ORR). In this context, better performances can be achieved by adopting a suitable electrocatalyst, such as MnO2. Herein, we tried to design nano-MnO2 tuning the final ORR electroactivity by tailoring the doping agent (Co or Fe) and its content (2% or 5% molar ratios). Staircase-linear sweep voltammetries (S-LSV) were performed to investigate the nanopowders electrocatalytic behavior in organic solvent (propylene carbonate, PC and 0.15 M LiNO3 as electrolyte). Two percent Co-doped MnO2 revealed to be the best-performing sample in terms of ORR onset shift (of ~130 mV with respect to bare glassy carbon electrode), due to its great lattice defectivity and presence of the highly electroactive γ polymorph (by X-ray diffraction analyses, XRPD and infrared spectroscopy, FTIR). 5% Co together with 2% Fe could also be promising, since they exhibited fewer diffusive limitations, mainly due to their peculiar pore distribution (by Brunauer–Emmett-Teller, BET) that disfavored the cathode clogging. Particularly, a too-high Fe content led to iron segregation (by energy dispersive X-ray spectroscopy, EDX, X-ray photoelectron spectroscopy, XPS and FTIR) provoking a decrease of the electroactive sites, with negative consequences for the ORR.
Eleonora Pargoletti; Annalisa Salvi; Alessia Giordana; Giuseppina Cerrato; Mariangela Longhi; Alessandro Minguzzi; Giuseppe Cappelletti; Alberto Vertova. ORR in Non-Aqueous Solvent for Li-Air Batteries: The Influence of Doped MnO2-Nanoelectrocatalyst. Nanomaterials 2020, 10, 1735 .
AMA StyleEleonora Pargoletti, Annalisa Salvi, Alessia Giordana, Giuseppina Cerrato, Mariangela Longhi, Alessandro Minguzzi, Giuseppe Cappelletti, Alberto Vertova. ORR in Non-Aqueous Solvent for Li-Air Batteries: The Influence of Doped MnO2-Nanoelectrocatalyst. Nanomaterials. 2020; 10 (9):1735.
Chicago/Turabian StyleEleonora Pargoletti; Annalisa Salvi; Alessia Giordana; Giuseppina Cerrato; Mariangela Longhi; Alessandro Minguzzi; Giuseppe Cappelletti; Alberto Vertova. 2020. "ORR in Non-Aqueous Solvent for Li-Air Batteries: The Influence of Doped MnO2-Nanoelectrocatalyst." Nanomaterials 10, no. 9: 1735.
Photoelectrochemical (PEC) water splitting devices using semiconductors and electrocatalysts rely on heterogeneous interfaces that drive charge separation, thus determining potential gradients that dictate the reaction efficiency. The PEC potential of the electrocatalyst depends on the chemical oxidation state of forming elements, which may strongly vary under the photoinduced charge flow. However, element-sensitive, real-time measurements of the oxidation state of the electrocatalyst are not generally possible by using conventional X-ray absorption techniques. Here we show that fixed energy X-ray absorption voltammetry and chronoamperometry, which measures the X-ray absorption coefficient variations along with photocurrent, can follow in real time the redox kinetics of electrocatalysts in operando. In order to demonstrate the validity, we investigate hematite (α-Fe2O3) photoanodes covered with a nickel hydroxide electrocatalyst and show that it is fully oxidized by photogenerated holes to nickel oxyhydroxide with Ni reaching higher oxidation state (NiIV) than that observed under electrocatalytic oxygen evolution in dark conditions. Highly oxidized Ni results from charge accumulation in the overlayer and can be observed only in the case of thick layers (with low PEC performance). On the other hand, the average oxidation state of Ni reaches lower values, under operative conditions, for very thin layers resulting in high PEC activity. We complete our study by presenting PEC activity and impedance spectroscopy analysis using different thickness of electrocatalyst, thus proving a detailed picture of the multiple and complex charge transfer processes occurring at a semiconductor/electrocatalyst junction.
Francesco Malara; Martina Fracchia; Hana Kmentová; Rinaldo Psaro; Alberto Vertova; Danilo Oliveira DE Souza; Giuliana Aquilanti; Luca Olivi; Paolo Ghigna; Alessandro Minguzzi; Alberto Naldoni. Direct Observation of Photoinduced Higher Oxidation States at a Semiconductor/Electrocatalyst Junction. ACS Catalysis 2020, 10, 10476 -10487.
AMA StyleFrancesco Malara, Martina Fracchia, Hana Kmentová, Rinaldo Psaro, Alberto Vertova, Danilo Oliveira DE Souza, Giuliana Aquilanti, Luca Olivi, Paolo Ghigna, Alessandro Minguzzi, Alberto Naldoni. Direct Observation of Photoinduced Higher Oxidation States at a Semiconductor/Electrocatalyst Junction. ACS Catalysis. 2020; 10 (18):10476-10487.
Chicago/Turabian StyleFrancesco Malara; Martina Fracchia; Hana Kmentová; Rinaldo Psaro; Alberto Vertova; Danilo Oliveira DE Souza; Giuliana Aquilanti; Luca Olivi; Paolo Ghigna; Alessandro Minguzzi; Alberto Naldoni. 2020. "Direct Observation of Photoinduced Higher Oxidation States at a Semiconductor/Electrocatalyst Junction." ACS Catalysis 10, no. 18: 10476-10487.
Using density functional theory we studied the influence of group 1 and 11 impurities on the bandgap of Cu2O. Our results show that dopants affect the bandgap through geometric and electronic effects. Geometric effects originate from the compression of adjacent CuO bonds while electronic effects are tightly connected to changes in the ability to delocalize electrons through 2 electron 3 center bonds. Doping with alkali metals disturbs the delocalization network and therefore results in an increased bandgap. The 2 electron 3 center bonding network is restored by Au and Ag dopants or decreased doping concentrations.
Alberto Visibile; Alberto Vertova; Sandra Rondinini; Alessandro Minguzzi; Elisabet Ahlberg; Michael Busch. Strain or Electronic Effects? – The influence of alkali metals on the bandgap of Cu2O. Chemical Physics Letters 2020, 755, 137799 .
AMA StyleAlberto Visibile, Alberto Vertova, Sandra Rondinini, Alessandro Minguzzi, Elisabet Ahlberg, Michael Busch. Strain or Electronic Effects? – The influence of alkali metals on the bandgap of Cu2O. Chemical Physics Letters. 2020; 755 ():137799.
Chicago/Turabian StyleAlberto Visibile; Alberto Vertova; Sandra Rondinini; Alessandro Minguzzi; Elisabet Ahlberg; Michael Busch. 2020. "Strain or Electronic Effects? – The influence of alkali metals on the bandgap of Cu2O." Chemical Physics Letters 755, no. : 137799.
Sn-modification of TiO2 photocatalysts has been recently proposed as a suitable strategy to improve pollutant degradation as well as hydrogen production. In particular, visible light activity could be promoted by doping with Sn2+ species, which are, however, thermally unstable. Co-promotion with N and Sn has been shown to lead to synergistic effects in terms of visible light activity, but the underlying mechanism has, so far, been poorly understood due to the system complexity. Here, the structural, optical, and electronic properties of N,Sn-copromoted, nanostructured TiO2 from sol-gel synthesis were investigated: the Sn/Ti molar content was varied in the 0–20% range and different post-treatments (calcination and low temperature hydrothermal treatment) were adopted in order to promote the sample crystallinity. Depending on the adopted post-treatment, the optical properties present notable differences, which supports a combined role of Sn dopants and N-induced defects in visible light absorption. X-ray absorption spectroscopy at the Ti K-edge and Sn L2,3-edges shed light onto the electronic properties and structure of both Ti and Sn species, evidencing a marked difference at the Sn L2,3-edges between the samples with 20% and 5% Sn/Ti ratio, showing, in the latter case, the presence of tin in a partially reduced state.
Martina Fracchia; Paolo Ghigna; Alessandro Minguzzi; Alberto Vertova; Francesca Turco; Giuseppina Cerrato; Daniela Meroni. Role of Synthetic Parameters on the Structural and Optical Properties of N,Sn-copromoted Nanostructured TiO2: A Combined Ti K-edge and Sn L2,3-edges X-ray Absorption Investigation. Nanomaterials 2020, 10, 1224 .
AMA StyleMartina Fracchia, Paolo Ghigna, Alessandro Minguzzi, Alberto Vertova, Francesca Turco, Giuseppina Cerrato, Daniela Meroni. Role of Synthetic Parameters on the Structural and Optical Properties of N,Sn-copromoted Nanostructured TiO2: A Combined Ti K-edge and Sn L2,3-edges X-ray Absorption Investigation. Nanomaterials. 2020; 10 (6):1224.
Chicago/Turabian StyleMartina Fracchia; Paolo Ghigna; Alessandro Minguzzi; Alberto Vertova; Francesca Turco; Giuseppina Cerrato; Daniela Meroni. 2020. "Role of Synthetic Parameters on the Structural and Optical Properties of N,Sn-copromoted Nanostructured TiO2: A Combined Ti K-edge and Sn L2,3-edges X-ray Absorption Investigation." Nanomaterials 10, no. 6: 1224.
Alberto Visibile; Tomasz Baran; Sandra Rondinini; Alessandro Minguzzi; Alberto Vertova. Determining the Efficiency of Photoelectrode Materials by Coupling Cavity‐Microelectrode Tips and Scanning Electrochemical Microscopy. ChemElectroChem 2020, 7, 2440 -2447.
AMA StyleAlberto Visibile, Tomasz Baran, Sandra Rondinini, Alessandro Minguzzi, Alberto Vertova. Determining the Efficiency of Photoelectrode Materials by Coupling Cavity‐Microelectrode Tips and Scanning Electrochemical Microscopy. ChemElectroChem. 2020; 7 (11):2440-2447.
Chicago/Turabian StyleAlberto Visibile; Tomasz Baran; Sandra Rondinini; Alessandro Minguzzi; Alberto Vertova. 2020. "Determining the Efficiency of Photoelectrode Materials by Coupling Cavity‐Microelectrode Tips and Scanning Electrochemical Microscopy." ChemElectroChem 7, no. 11: 2440-2447.
Chlorine dioxide (ClO2) has been widely used as a disinfectant in drinking water in the past but its effects on water pipes have not been investigated deeply, mainly due to the difficult experimental set-up required to simulate real-life water pipe conditions. In the present paper, four different kinds of water pipes, two based on plastics, namely random polypropylene (PPR) and polyethylene of raised temperature (PERT/aluminum multilayer), and two made of metals, i.e., copper and galvanized steel, were put in a semi-closed system where ClO2 was dosed continuously. The semi-closed system allowed for the simulation of real ClO2 concentrations in common water distribution systems and to simulate the presence of pipes made with different materials from the source of water to the tap. Results show that ClO2 has a deep effect on all the materials tested (plastics and metals) and that severe damage occurs due to its strong oxidizing power in terms of surface chemical modification of metals and progressive cracking of plastics. These phenomena could in turn become an issue for the health and safety of drinking water due to progressive leakage of degraded products in the water.
Alberto Vertova; Alessandro Miani; Giordano Lesma; Sandra Rondinini; Alessandro Minguzzi; Luigi Falciola; Marco Aldo Ortenzi. Chlorine Dioxide Degradation Issues on Metal and Plastic Water Pipes Tested in Parallel in a Semi-Closed System. International Journal of Environmental Research and Public Health 2019, 16, 4582 .
AMA StyleAlberto Vertova, Alessandro Miani, Giordano Lesma, Sandra Rondinini, Alessandro Minguzzi, Luigi Falciola, Marco Aldo Ortenzi. Chlorine Dioxide Degradation Issues on Metal and Plastic Water Pipes Tested in Parallel in a Semi-Closed System. International Journal of Environmental Research and Public Health. 2019; 16 (22):4582.
Chicago/Turabian StyleAlberto Vertova; Alessandro Miani; Giordano Lesma; Sandra Rondinini; Alessandro Minguzzi; Luigi Falciola; Marco Aldo Ortenzi. 2019. "Chlorine Dioxide Degradation Issues on Metal and Plastic Water Pipes Tested in Parallel in a Semi-Closed System." International Journal of Environmental Research and Public Health 16, no. 22: 4582.
Cu2O is one of the most studied semiconductors for photocathodes in photoelectrochemical water splitting (PEC-WS). Its low stability is counterbalanced by good activity, provided that a suitable underlayer/support is used. While Cu2O is mostly studied on Au underlayers, this paper proposes Cu(0) as a low-cost, easy to prepare and highly efficient alternative. Cu and Cu2O can be electrodeposited from the same bath, thus allowing in principle to tune the final material’s physico-chemical properties with high precision with a scalable method. Electrodes and photoelectrodes are studied by means of electrochemical methods (cyclic voltammetry, Pb underpotential deposition) and by ex-situ X-ray absorption spectroscopy (XAS). While the potential applied for the deposition of Cu has no influence on the bulk structure and on the photocurrent displayed by the semiconductor, it plays a role on the dark currents, making this strategy promising for improving the material’s stability. Au/Cu2O and Cu/Cu2O show similar performances, the latter having clear advantages in view of future use in practical applications. The influence of Cu underlayer thickness was also evaluated in terms of obtained photocurrent.
Alberto Visibile; Martina Fracchia; Tomasz Baran; Alberto Vertova; Paolo Ghigna; Elisabet Ahlberg; Sandra Rondinini; Alessandro Minguzzi. Electrodeposited Cu thin layers as low cost and effective underlayers for Cu2O photocathodes in photoelectrochemical water electrolysis. Journal of Solid State Electrochemistry 2019, 24, 339 -355.
AMA StyleAlberto Visibile, Martina Fracchia, Tomasz Baran, Alberto Vertova, Paolo Ghigna, Elisabet Ahlberg, Sandra Rondinini, Alessandro Minguzzi. Electrodeposited Cu thin layers as low cost and effective underlayers for Cu2O photocathodes in photoelectrochemical water electrolysis. Journal of Solid State Electrochemistry. 2019; 24 (2):339-355.
Chicago/Turabian StyleAlberto Visibile; Martina Fracchia; Tomasz Baran; Alberto Vertova; Paolo Ghigna; Elisabet Ahlberg; Sandra Rondinini; Alessandro Minguzzi. 2019. "Electrodeposited Cu thin layers as low cost and effective underlayers for Cu2O photocathodes in photoelectrochemical water electrolysis." Journal of Solid State Electrochemistry 24, no. 2: 339-355.
Martina Fracchia; Vito Cristino; Alberto Vertova; Sandra Rondinini; Stefano Caramori; Paolo Ghigna; Alessandro Minguzzi. Operando X-ray absorption spectroscopy of WO3 photoanodes. Electrochimica Acta 2019, 320, 1 .
AMA StyleMartina Fracchia, Vito Cristino, Alberto Vertova, Sandra Rondinini, Stefano Caramori, Paolo Ghigna, Alessandro Minguzzi. Operando X-ray absorption spectroscopy of WO3 photoanodes. Electrochimica Acta. 2019; 320 ():1.
Chicago/Turabian StyleMartina Fracchia; Vito Cristino; Alberto Vertova; Sandra Rondinini; Stefano Caramori; Paolo Ghigna; Alessandro Minguzzi. 2019. "Operando X-ray absorption spectroscopy of WO3 photoanodes." Electrochimica Acta 320, no. : 1.
Cu2O has been considered as a candidate material for transparent conducting oxides and photocatalytic water splitting. Both applications require suitably tuned band gaps. Here we explore the influence of compressive and tensile strain on the band gap by means of density functional theory (DFT) modeling. Our results indicate that the band gap decreases under tensile strain while it increases to a maximum under moderate compressive strain and decreases again under extreme compressive strain. This peculiar behavior is rationalized through a detailed analysis of the electronic structure by means of density of states (DOS), density overlap region indicators (DORI), and crystal overlap Hamilton populations (COHP). Contrary to previous studies we do not find any indications that the band gap is determined by d10–d10 interactions. Instead, our analysis clearly shows that both the conduction and the valence band edges are determined by Cu–O antibonding states. The band gap decrease under extreme compressive strain is associated with the appearance of Cu 4sp states in the conduction band region.
Alberto Visibile; Richard Baochang Wang; Alberto Vertova; Sandra Rondinini; Alessandro Minguzzi; Elisabet Ahlberg; Michael Busch. Influence of Strain on the Band Gap of Cu2O. Chemistry of Materials 2019, 31, 4787 -4792.
AMA StyleAlberto Visibile, Richard Baochang Wang, Alberto Vertova, Sandra Rondinini, Alessandro Minguzzi, Elisabet Ahlberg, Michael Busch. Influence of Strain on the Band Gap of Cu2O. Chemistry of Materials. 2019; 31 (13):4787-4792.
Chicago/Turabian StyleAlberto Visibile; Richard Baochang Wang; Alberto Vertova; Sandra Rondinini; Alessandro Minguzzi; Elisabet Ahlberg; Michael Busch. 2019. "Influence of Strain on the Band Gap of Cu2O." Chemistry of Materials 31, no. 13: 4787-4792.
This minireview aims at providing a complete survey concerning the use of X-ray absorption spectroscopy (XAS) for time-resolved studies of electrochemical and photoelectrochemical phenomena. We will see that time resolution can range from the femto-picosecond to the second (or more) scale and that this joins the valuable throughput typical of XAS, which allows for determining the oxidation state of the investigated element, together with its local structure. We will analyze four different techniques that use different approaches to exploit the in real time capabilities of XAS. These are quick-XAS, energy dispersive XAS, pump & probe XAS and fixed-energy X-ray absorption voltammetry. In the conclusions, we will analyze possible future perspectives for these techniques.
Martina Fracchia; Paolo Ghigna; Alberto Vertova; Sandra Rondinini; Alessandro Minguzzi. Time-Resolved X-ray Absorption Spectroscopy in (Photo)Electrochemistry. Surfaces 2018, 1, 138 -150.
AMA StyleMartina Fracchia, Paolo Ghigna, Alberto Vertova, Sandra Rondinini, Alessandro Minguzzi. Time-Resolved X-ray Absorption Spectroscopy in (Photo)Electrochemistry. Surfaces. 2018; 1 (1):138-150.
Chicago/Turabian StyleMartina Fracchia; Paolo Ghigna; Alberto Vertova; Sandra Rondinini; Alessandro Minguzzi. 2018. "Time-Resolved X-ray Absorption Spectroscopy in (Photo)Electrochemistry." Surfaces 1, no. 1: 138-150.
In this paper we propose titanium dioxide modified with cobalt(II) 2-ethylhexanoate ([email protected]) as photoactive material for the efficient visible light driven production of H2O2. We demonstrate that visible light activity can be achieved thanks to a photoinduced electron transfer from the excited complex towards the TiO2 conduction band that corresponds to a cobalt-to-titanium-charge-transfer transition. H2O2 is synthetized by a combination of oxygen reduction and water oxidation, that is possible thanks to the correct band position of [email protected] A mechanism of H2O2 formation is suggested on the basis of experimental evidences. Reactive oxygen intermediates, together with H2O2 are responsible for the photocatalytic degradation of a nonionic surfactant, of methylene blue and of phenol for wastewater treatments. Finally, and quite interestingly, [email protected] can be also used in a photoelectrochemical setup, where it can be adopted both as photoanode and photocatode, and the switching potential corresponds to the redox potential of the adsorbed complex Co(III)/Co(II) couple.
Tomasz Baran; Szymon Wojtyła; Alessandro Minguzzi; Sandra Rondinini; Alberto Vertova. Achieving efficient H2O2 production by a visible-light absorbing, highly stable photosensitized TiO2. Applied Catalysis B: Environmental 2018, 244, 303 -312.
AMA StyleTomasz Baran, Szymon Wojtyła, Alessandro Minguzzi, Sandra Rondinini, Alberto Vertova. Achieving efficient H2O2 production by a visible-light absorbing, highly stable photosensitized TiO2. Applied Catalysis B: Environmental. 2018; 244 ():303-312.
Chicago/Turabian StyleTomasz Baran; Szymon Wojtyła; Alessandro Minguzzi; Sandra Rondinini; Alberto Vertova. 2018. "Achieving efficient H2O2 production by a visible-light absorbing, highly stable photosensitized TiO2." Applied Catalysis B: Environmental 244, no. : 303-312.
Martina Fracchia; Alberto Visibile; Elisabet Ahlberg; Alberto Vertova; Alessandro Minguzzi; Paolo Ghigna; Sandra Rondinini. α- and γ-FeOOH: Stability, Reversibility, and Nature of the Active Phase under Hydrogen Evolution. ACS Applied Energy Materials 2018, 1, 1716 -1725.
AMA StyleMartina Fracchia, Alberto Visibile, Elisabet Ahlberg, Alberto Vertova, Alessandro Minguzzi, Paolo Ghigna, Sandra Rondinini. α- and γ-FeOOH: Stability, Reversibility, and Nature of the Active Phase under Hydrogen Evolution. ACS Applied Energy Materials. 2018; 1 (4):1716-1725.
Chicago/Turabian StyleMartina Fracchia; Alberto Visibile; Elisabet Ahlberg; Alberto Vertova; Alessandro Minguzzi; Paolo Ghigna; Sandra Rondinini. 2018. "α- and γ-FeOOH: Stability, Reversibility, and Nature of the Active Phase under Hydrogen Evolution." ACS Applied Energy Materials 1, no. 4: 1716-1725.
Alessandro Minguzzi; Linda Montagna; Andrea Falqui; Alberto Vertova; Sandra Rondinini; Paolo Ghigna. Dynamics of oxide growth on Pt nanoparticles electrodes in the presence of competing halides by operando energy dispersive X-Ray absorption spectroscopy. Electrochimica Acta 2018, 270, 378 -386.
AMA StyleAlessandro Minguzzi, Linda Montagna, Andrea Falqui, Alberto Vertova, Sandra Rondinini, Paolo Ghigna. Dynamics of oxide growth on Pt nanoparticles electrodes in the presence of competing halides by operando energy dispersive X-Ray absorption spectroscopy. Electrochimica Acta. 2018; 270 ():378-386.
Chicago/Turabian StyleAlessandro Minguzzi; Linda Montagna; Andrea Falqui; Alberto Vertova; Sandra Rondinini; Paolo Ghigna. 2018. "Dynamics of oxide growth on Pt nanoparticles electrodes in the presence of competing halides by operando energy dispersive X-Ray absorption spectroscopy." Electrochimica Acta 270, no. : 378-386.
Here we report the synthesis of a core - CuI/shell - CuO nanostructure that depending on the applied potential works as photocathode or photoanode in neutral pH upon visible light irradiation. Under cathodic polarization, this material generates a stable photocurrent but functions as photoanode when anodic polarization is applied. In this new core-shell structure, the relevant position of the band edge potentials is pH–tunable and does not strictly follow the typical Nernstian dependence as by many semiconductor oxides, opening new directions in the nanoscale design of stable photoelectrodes for solar water splitting.
Tomasz Baran; Alberto Visibile; Szymon Wojtyła; Marcello Marelli; Stefano Checchia; Marco Scavini; Francesco Malara; Alberto Naldoni; Alberto Vertova; Sandra Rondinini; Alessandro Minguzzi. Reverse type I core - CuI /shell - CuO: A versatile heterostructure for photoelectrochemical applications. Electrochimica Acta 2018, 266, 441 -451.
AMA StyleTomasz Baran, Alberto Visibile, Szymon Wojtyła, Marcello Marelli, Stefano Checchia, Marco Scavini, Francesco Malara, Alberto Naldoni, Alberto Vertova, Sandra Rondinini, Alessandro Minguzzi. Reverse type I core - CuI /shell - CuO: A versatile heterostructure for photoelectrochemical applications. Electrochimica Acta. 2018; 266 ():441-451.
Chicago/Turabian StyleTomasz Baran; Alberto Visibile; Szymon Wojtyła; Marcello Marelli; Stefano Checchia; Marco Scavini; Francesco Malara; Alberto Naldoni; Alberto Vertova; Sandra Rondinini; Alessandro Minguzzi. 2018. "Reverse type I core - CuI /shell - CuO: A versatile heterostructure for photoelectrochemical applications." Electrochimica Acta 266, no. : 441-451.
Tomasz Baran; Szymon Wojtyła; Alberto Vertova; Alessandro Minguzzi; Sandra Rondinini. Photoelectrochemical and photocatalytic systems based on titanates for hydrogen peroxide formation. Journal of Electroanalytical Chemistry 2018, 808, 395 -402.
AMA StyleTomasz Baran, Szymon Wojtyła, Alberto Vertova, Alessandro Minguzzi, Sandra Rondinini. Photoelectrochemical and photocatalytic systems based on titanates for hydrogen peroxide formation. Journal of Electroanalytical Chemistry. 2018; 808 ():395-402.
Chicago/Turabian StyleTomasz Baran; Szymon Wojtyła; Alberto Vertova; Alessandro Minguzzi; Sandra Rondinini. 2018. "Photoelectrochemical and photocatalytic systems based on titanates for hydrogen peroxide formation." Journal of Electroanalytical Chemistry 808, no. : 395-402.
S. Orsini; E. Pargoletti; Alberto Vertova; Alessandro Minguzzi; C. Locatelli; S. Rondinini; G. Cappelletti. Ad hoc tailored electrocatalytic MnO2 nanorods for the oxygen reduction in aqueous and organic media. Journal of Electroanalytical Chemistry 2018, 808, 439 -445.
AMA StyleS. Orsini, E. Pargoletti, Alberto Vertova, Alessandro Minguzzi, C. Locatelli, S. Rondinini, G. Cappelletti. Ad hoc tailored electrocatalytic MnO2 nanorods for the oxygen reduction in aqueous and organic media. Journal of Electroanalytical Chemistry. 2018; 808 ():439-445.
Chicago/Turabian StyleS. Orsini; E. Pargoletti; Alberto Vertova; Alessandro Minguzzi; C. Locatelli; S. Rondinini; G. Cappelletti. 2018. "Ad hoc tailored electrocatalytic MnO2 nanorods for the oxygen reduction in aqueous and organic media." Journal of Electroanalytical Chemistry 808, no. : 439-445.
Jonathan Albo; Manuel Alvarez-Guerra; Sidney Aquino Neto; Patricia Balderas-Hernández; Carlos E. Barrera-Díaz; Katlin I. Barrios Eguiluz; Bryan Bilyeu; Enric Brillas; Brian P. Chaplin; Simona Corgiolu; Adalgisa R. De Andrade; Achille De Battisti; Marilia M. De Salles Pupo; Antonio Dominguez-Ramos; Elisama V. Dos Santos; Carolina Espinoza-Cisternas; Eduardo Expósito; Ana S. Fajardo; Francisco Gallud; Vicente García-García; Karine Groenen Serrano; Raquel Ibañez; Jesus Iniesta; Angel Irabien; Cristina Locatelli; Florencio Lugo; Laura Mais; Carlos A. Martínez-Huitle; Michele Mascia; Yunny Meas; Alejandro Medel; Alessandro Minguzzi; Vicente Montiel; Inmaculada Ortiz; Nihal Oturan; Mehmet A. Oturan; Martin A. Pacheco-Álvarez; Simonetta Palmas; Marco Panizza; Juan M. Peralta-Hernández; Elisabetta Petrucci; Valéria Reginatto; Maria J. Rivero; Manuel Andrés Rodrigo; Oscar Rodríguez-Narváez; Sandra Rondinini; Cristina Sáez; Ricardo Salazar; Giancarlo R. Salazar Banda; Géssica De O. Santiago Santos; Onofrio Scialdone; Ignasi Sirés; Ane M. Urtiaga; Annalisa Vacca; David Valero; Vanessa M. Vasconcelos; Alberto Vertova; Shraddha Vijay. Contributors. Electrochemical Water and Wastewater Treatment 2018, 1 .
AMA StyleJonathan Albo, Manuel Alvarez-Guerra, Sidney Aquino Neto, Patricia Balderas-Hernández, Carlos E. Barrera-Díaz, Katlin I. Barrios Eguiluz, Bryan Bilyeu, Enric Brillas, Brian P. Chaplin, Simona Corgiolu, Adalgisa R. De Andrade, Achille De Battisti, Marilia M. De Salles Pupo, Antonio Dominguez-Ramos, Elisama V. Dos Santos, Carolina Espinoza-Cisternas, Eduardo Expósito, Ana S. Fajardo, Francisco Gallud, Vicente García-García, Karine Groenen Serrano, Raquel Ibañez, Jesus Iniesta, Angel Irabien, Cristina Locatelli, Florencio Lugo, Laura Mais, Carlos A. Martínez-Huitle, Michele Mascia, Yunny Meas, Alejandro Medel, Alessandro Minguzzi, Vicente Montiel, Inmaculada Ortiz, Nihal Oturan, Mehmet A. Oturan, Martin A. Pacheco-Álvarez, Simonetta Palmas, Marco Panizza, Juan M. Peralta-Hernández, Elisabetta Petrucci, Valéria Reginatto, Maria J. Rivero, Manuel Andrés Rodrigo, Oscar Rodríguez-Narváez, Sandra Rondinini, Cristina Sáez, Ricardo Salazar, Giancarlo R. Salazar Banda, Géssica De O. Santiago Santos, Onofrio Scialdone, Ignasi Sirés, Ane M. Urtiaga, Annalisa Vacca, David Valero, Vanessa M. Vasconcelos, Alberto Vertova, Shraddha Vijay. Contributors. Electrochemical Water and Wastewater Treatment. 2018; ():1.
Chicago/Turabian StyleJonathan Albo; Manuel Alvarez-Guerra; Sidney Aquino Neto; Patricia Balderas-Hernández; Carlos E. Barrera-Díaz; Katlin I. Barrios Eguiluz; Bryan Bilyeu; Enric Brillas; Brian P. Chaplin; Simona Corgiolu; Adalgisa R. De Andrade; Achille De Battisti; Marilia M. De Salles Pupo; Antonio Dominguez-Ramos; Elisama V. Dos Santos; Carolina Espinoza-Cisternas; Eduardo Expósito; Ana S. Fajardo; Francisco Gallud; Vicente García-García; Karine Groenen Serrano; Raquel Ibañez; Jesus Iniesta; Angel Irabien; Cristina Locatelli; Florencio Lugo; Laura Mais; Carlos A. Martínez-Huitle; Michele Mascia; Yunny Meas; Alejandro Medel; Alessandro Minguzzi; Vicente Montiel; Inmaculada Ortiz; Nihal Oturan; Mehmet A. Oturan; Martin A. Pacheco-Álvarez; Simonetta Palmas; Marco Panizza; Juan M. Peralta-Hernández; Elisabetta Petrucci; Valéria Reginatto; Maria J. Rivero; Manuel Andrés Rodrigo; Oscar Rodríguez-Narváez; Sandra Rondinini; Cristina Sáez; Ricardo Salazar; Giancarlo R. Salazar Banda; Géssica De O. Santiago Santos; Onofrio Scialdone; Ignasi Sirés; Ane M. Urtiaga; Annalisa Vacca; David Valero; Vanessa M. Vasconcelos; Alberto Vertova; Shraddha Vijay. 2018. "Contributors." Electrochemical Water and Wastewater Treatment , no. : 1.