ORCID Profile
0000-0003-3858-9730
Current Organisation
Università degli Studi di Milano
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Publisher: Hindawi Limited
Date: 16-08-2022
DOI: 10.1155/2022/6723296
Abstract: Fossil fuel depletion, increasing demands of energy, and harmful emission production led to do research on biofuels. In this research, biodiesel is developed by blending of Jatropha and Pongamia oil with the help of magnetic stirrer-assisted transesterification process. Heterogeneous copper-doped titanium oxide catalyst was synthesized by wet impregnation method. The developed catalyst is characterized through XRD and HRTEM analyses and used to enrich the biodiesel yield and fuel properties, viz., viscosity, flashpoint, and fire point. The maximum yield of 90.2% is obtained with catalyst concentration of 3 wt%, reaction time of 3 hrs, temperature of 60°C, and methanol to oil molar ratio of 20 : 1.
Publisher: Elsevier BV
Date: 09-2016
Publisher: MDPI AG
Date: 06-01-2016
DOI: 10.3390/NANO6010010
Publisher: Elsevier BV
Date: 05-2022
Publisher: Wiley
Date: 11-05-2021
Abstract: 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.
Publisher: MDPI AG
Date: 09-2020
DOI: 10.3390/NANO10091735
Abstract: 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 s le 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.
Publisher: Elsevier BV
Date: 2018
No related grants have been discovered for ALBERTO VERTOVA.