dante ferreira franceschini

Scopus Publications

Development of nanostructured biogrease for wheel/rail contact application
V.S. Mello, D.F. Franceschini, C. Scandian, S.M. Alves
Tribology International, 2026
Cyclized Polyacrylonitrile (cPAN): A Critical Structure Review and Its Application as Active Cathode Material in Lithium Batteries
Samuel Bertolini, Dante F Franceschini, Cauê de S C Nogueira, Yutao Xing
ACS Applied Energy Materials, 2025
High Resolution Image Download MS PowerPoint Slide Cyclized polyacrylonitrile (cPAN) synthesis entails a multistep process encompassing cyclization, the elimination of NH 3, H 2, and hydrogen cyanate (HCN) gases, and graphitization. This process yields a semiconducting polymer that, when paired with sulfur, is used as cathode materials in Li–S batteries or, under elevated temperatures, produces carbon fibers. Within this framework, we comprehensively characterized cPAN obtained through varying temperature regimes. Utilizing scanning electron microscopy (SEM) and transmission electron microscopy (TEM), alongside infrared and Raman spectroscopies, we scrutinized the samples subjected to thermal treatment. Together, employing density functional theory (DFT), we investigated the potential reaction pathways implicated in the heat treatment of cPAN, while also investigating its viability as a cathode material through DFT calculations and electrochemical characterization using a pontetiostat. Our inquiry emphasizes pivotal insights concerning the structural nuances of cPAN, with a critical state of the structure commonly proposed in the literature. Finally, we assembled and characterized the cPAN as an active material for lithium batteries in a range between 0.2 and 4.6 V, inducing, at high voltage, overpotential reactions that modify the capacity of the cPAN. Thus, cPAN can be considered a material that can be used as anode and cathode material in lithium batteries, according to the electrochemical conditions.
From Silver Nanoparticle to Thin Films Produced by Pulsed Laser Deposition: Effects of Ar Gas Pressure and Substrate Surface Free Energy
C S C Nogueira, A C Agra, D F Franceschini, M Watanabe, Y T Xing
Microscopy and Microanalysis, 2024
The Impact of Fe2+ and Fe3+ Segregation on the Structural and Magnetic Properties of ZnO/Fe Multilayers Deposited via Sputtering: A Study Using EELS and EDS
N.R. Checca, D. Franceschini, E. Baggio Saitovitch, Y.T. Xing
2024 IEEE International Magnetic Conference Short Papers Intermag Short Papers 2024 Proceedings, 2024
Ferromagnetic (FM)-metal/oxide multilayers play a central role in achieving highly efficient spin injection, crucial for determining the performance of spintronic devices. In this study, we investigate the microstructural and magnetic properties of [ZnO(5nm)/Fe(t)]6 multilayers (t = 0.3, 0.4, 0.6, 0.8, and 1.0 nm) deposited on SiO2/Si substrates using magnetron sputtering. Characterization of the multilayers was conducted through transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM). XRD, XRR, and TEM analyses reveal the presence of multiple crystallographic defects and macroscopic periodicity. Consistent chemical profiles across the ZnO/Fe multilayers were identified through EELS and EDS methods. The saturation magnetization of the multilayer with t = 0.3 nm is approximately five times lower than that of the multilayer with t = 1 nm, and this discrepancy is attributed to indirect coupling between isolated Fe ions rather than the presence of clusters. These findings contribute to a comprehensive understanding of the microstructure and magnetic properties of the investigated ZnO/Fe multilayers, offering insights for their potential applications in spintronics.
The Impact of Fe²+ and Fe³+ Segregation on the Structural and Magnetic Properties of ZnO/Fe Multilayers Deposited via Sputtering: A Study Using EELS and EDS
N. R. Checca, D. F. Franceschini, E. Baggio-Saitovitch, Y. T. Xing
IEEE Transactions on Magnetics, 2024
Ferromagnetic (FM)-metal/oxide multilayers (MLs) play a central role in achieving highly efficient spin injection, crucial for determining the performance of spintronic devices. In this study, we investigate the microstructural and magnetic properties of [ZnO(5 nm)/Fe(t)]6 MLs (<inline-formula> <tex-math notation="LaTeX">$t =0.3$ </tex-math></inline-formula>, 0.4, 0.6, 0.8, and 1.0 nm) deposited on SiO2/Si substrates using magnetron sputtering. The characterization of the MLs was conducted through transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM). X-ray diffraction (XRD), X-ray reflectivity (XRR), and TEM analyses reveal the presence of multiple crystallographic defects and macroscopic periodicity. Consistent chemical profiles across the ZnO/Fe MLs were identified through electron energy loss spectroscopy (EELS) and energy-dispersive X-ray spectroscopy (EDS) methods. The saturation magnetization of the ML with <inline-formula> <tex-math notation="LaTeX">$t =0.3$ </tex-math></inline-formula> nm is approximately five times lower than that of the ML with <inline-formula> <tex-math notation="LaTeX">$t =1$ </tex-math></inline-formula> nm, and this discrepancy is attributed to indirect coupling between isolated Fe ions rather than the presence of clusters. These findings contribute to a comprehensive understanding of the microstructure and magnetic properties of the investigated ZnO/Fe MLs, offering insights for their potential applications in spintronics.
Nickel Nanoparticles Supported on Carbon Cloth via Pulsed Laser Deposition as an Effective Catalyst for Urea Electro-oxidation Reaction
Mengying Ma, Caio Machado Fernandes, Mengfei Li, Angela Caroliny A. Pinto, Camilla M. Alves, Dante F. Franceschini, Eduardo M. Rodrigues, Eduardo A. Ponzio, Júlio César M. Silva, Yutao Xing
Journal of Cluster Science, 2024
Graphite oxide synthetized by pulsed laser ablation technique used as an antifouling coating to inhibit CaCO3 scale on stainless steel surfaces
Juan P. Cuenca-Vargas, Juan D. Lopez-Vargas, Andre A. Drummond, Marcelo M. Werneck, Dante F. Franceschini, Sergio S. Camargo
Journal of Vacuum Science and Technology A Vacuum Surfaces and Films, 2023
This work presents a study on the influence of carbon thin films deposited on stainless steel substrates for calcium carbonate (CaCO3) scaling tests. Three stainless steel samples were prepared from a metallographic polishing process. Subsequently, two of the pieces were coated with carbon thin films, and the other piece was used as a reference (without coating). One piece was coated only with carbon, and the other was coated first with nickel and then with carbon. Both coatings were synthetized by pulsed laser ablation (PLD) using an Nd:YAG pulsed laser with a wavelength of 266 nm, a pulse energy of 70 mJ, and a repetition rate of 10 Hz. The target was ablated for 10 min to deposit each thin film on the steel surface. The samples were characterized by different techniques to study morphological properties such as roughness, wettability, and surface energy. In addition, x-ray diffraction, Raman spectroscopy, Fourier-transform infrared spectroscopy, and water contact angle were used to determine the type of structure deposited by PLD. Characterization results allowed us to identify the coating structure as a thin film of partially oxidized graphite. Finally, the coated pieces were subjected to the CaCO3 scaling process and the results showed that the coatings improved the inhibition of CaCO3 with a reduction of more than 80% of the embedded mass compared to the uncoated sample.
sp-hybridized carbon atoms formed by low-energy collisions in carbon nanofoams produced by pulsed laser deposition
A.C.L.B. Lustosa, M. Evers, D.F. Franceschini, F.J. Litterst, Yutao Xing
Materials Letters, 2022
Enhancement of Cu nanoparticles dispersion in nanolubricants by magnetron sputtering deposition and its influence on the tribological behavior
M. F. Trajano, D. F. Franceschini, Edimilson F. Silva, M. Assolin Correa, F. Bohn, S. M. Alves
Journal of Tribology, 2021
We investigated the chemical, physical, and tribological properties of nanolubricants consisting of epoxidized sunflower oil with Cu nanoparticles as additive. These latter are produced by magnetron sputtering at distinct current levels in the deposition, to improve the development of nanolubricants by enhancing the nanoparticles dispersion. The nanolubricants are here characterized by Fourier transform infrared spectroscopy, zeta potential, ultraviolet–visible absorbance spectroscopy, small-angle X-ray scattering, and scanning electron microscopy. After all, the tribological properties of the bionanolubricants are investigated using a high-frequency reciprocating rig equipment, scanning electron microscopy, and energy dispersive spectroscopy. Our results disclose the nanolubricants produced using the magnetron sputtering technique have excellent nanoparticle dispersion, as well as good tribological performance.
Magnetic properties of superconducting phases NiBi and NiBi3 formed during pulsed laser deposition of Ni-Bi films
Liying Liu, Yutao Xing, I.L.C. Merino, D.F. Franceschini, I.G. Solórzano, E. Baggio-Saitovitch
Journal of Magnetism and Magnetic Materials, 2020
Nickel nanoparticles supported by commercial carbon paper as a catalyst for urea electro-oxidation
Izabella F. Coelho, Joseane R. Barbosa, Liying Liu, Cauê de S. C. Nogueira, Dante F. Franceschini, Eduardo A. Ponzio, Júlio César M. Silva, Yutao Xing
Materials for Renewable and Sustainable Energy, 2020
Manganese oxide nanofoam prepared by pulsed laser deposition for high performance supercapacitor electrodes
J.N. Lacerda, D.F. Franceschini, E.A. Ponzio, Laura M. Esteves, R.B. Guimarães, Y.T. Xing
Materials Chemistry and Physics, 2020
Comparison of the properties of a-C:H films deposited from methane and heptane precursors: study of the mechanical, chemical and structural properties
W.E.S.S. Viana, A.E. Elzubair, M.M. Wysard, D.F. Franceschini, S.S. Camargo
Thin Solid Films, 2020
Tuning the morphology of manganese oxide nanostructures for obtaining both high gravimetric and volumetric capacitance
Jones de A. Pereira, Janiny N. Lacerda, Izabella F. Coelho, Cauê de S. C. Nogueira, Dante F. Franceschini, Eduardo A. Ponzio, Fernando B. Mainier, Yutao Xing
Materials Advances, 2020
Superconductivity in Bi/Ni bilayer system: Clear role of superconducting phases found at Bi/Ni interface
L. Y. Liu, Y. T. Xing, I. L. C. Merino, H. Micklitz, D. F. Franceschini, E. Baggio-Saitovitch, D. C. Bell, I. G. Solórzano
Physical Review Materials, 2018
Effects of postdeposition heat treatment on the structural and magnetic properties of CoFe2O4 nanoparticles produced by pulsed laser deposition
F. Fabris, Y. T. Xing, D. F. Franceschini, D. R. Sanchez, M. Alzamora, W. C. Nunes
Journal of Applied Physics, 2017
Biogenic approaches using citrus extracts for the synthesis of metal nanoparticles: The role of flavonoids in gold reduction and stabilization
Jelver Alexander Sierra, Caio Raphael Vanoni, Milton André Tumelero, Cristiani Campos Plá Cid, Ricardo Faccio, Dante Ferreira Franceschini, Tânia Beatriz Creczynski-Pasa, André Avelino Pasa
New Journal of Chemistry, 2016
Cobalt catalyst characterization for methane decomposition and carbon nanotube growth
Hugo A. Oliveira, Dante F. Franceschini, Fabio B. Passos
Journal of the Brazilian Chemical Society, 2014
Polyaniline nanofibers-graphene oxide nanoplatelets composite thin film electrodes for electrochemical capacitors
Mohd. Khalid, Milton A. Tumelero, Vinicius C. Zoldan, Cristiani C. Pla Cid, Dante F. Franceschini, Ronaldo A. Timm, Lauro T. Kubota, Stanislav A. Moshkalev, Andre A. Pasa
Rsc Advances, 2014
Er:SrF 2 luminescent powders prepared by combustion synthesis
Nikifor Rakov, R.B. Guimarães, D.F. Franceschini, Glauco S. Maciel
Materials Chemistry and Physics, 2012
Support effect on carbon nanotube growth by methane chemical vapor deposition on cobalt catalysts
Hugo A. Oliveira, Dante F. Franceschini, Fabio B. Passos
Journal of the Brazilian Chemical Society, 2012
Nanostructured europium oxide thin films deposited by pulsed laser ablation of a metallic target in a He buffer atmosphere
H. Luna, D. F. Franceschini, R. Prioli, R. B. Guimarães, C. M. Sanchez, G. P. Canal, M. D. L. Barbosa, R. M. O. Galvão
Journal of Vacuum Science and Technology A Vacuum Surfaces and Films, 2010
Deposition of hard amorphous hydrogenated carbon films by radiofrequency parallel-plate hollow-cathode plasmas
G. Capote, L.G. Jacobsohn, M.D. Michel, C.M. Lepienski, A.L. Vieira, D.F. Franceschini
Diamond and Related Materials, 2007
Structural and optical characterization of fluorinated hydrogenated silicon carbide films deposited by pulsed glow discharge
L.G. Jacobsohn, D.F. Franceschini, I.V. Afanasyev-Charkin, D.W. Cooke, L.L. Daemen, R.D. Averitt, M. Nastasi
Surface and Coatings Technology, 2006
Nanoporosity in plasma deposited amorphous carbon films investigated by small-angle X-ray scattering
L.G Jacobsohn, G Capote, M.E.H Maia da Costa, D.F Franceschini, F.L Freire
Diamond and Related Materials, 2002
Growth, structure, and properties of plasma-deposited amorphous hydrogenated carbon-nitrogen films
D.F. Franceschini
Thin Films and Nanostructures, 2002
Surface modifications in diamond-like carbon films submitted to low-energy nitrogen ion bombardment
S.I Castañeda, V.A.A Espinoza, F.L Freire, D.F Franceschini, L.G Jacobsohn
Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms, 2001
Film growth and relationship between microstructure and mechanical properties of a-C:H:F films deposited by PECVD
F.L Freire, M.E.H Maia da Costa, L.G Jacobsohn, D.F Franceschini
Diamond and Related Materials, 2001
Fluorine incorporation into amorphous hydrogenated carbon films deposited by plasma-enhanced chemical vapor deposition: Structural modification investigated by X-ray photoelectron spectrometry and Raman spectroscopy
M.E.H.Maia da Costa, F.L Freire, L.G Jacobsohn, D Franceschini, G Mariotto, I.R.J Baumvol
Diamond and Related Materials, 2001
Fluorine incorporation into hard amorphous hydrogenated carbon films deposited by PECVD
Materials Research Society Symposium Proceedings, 2000
Voids investigation of amorphous carbon films deposited by dc-magnetron sputtering: a small angle X-ray scattering and gas thermal effusion study
Materials Research Society Symposium Proceedings, 2000
Structural and mechanical characterization of fluorinated amorphous-carbon films deposited by plasma decomposition of CF4-CH4 gas mixtures
L. G. Jacobsohn, D. F. Franceschini, M. E. H. Maia da Costa, F. L. Freire
Journal of Vacuum Science and Technology A Vacuum Surfaces and Films, 2000
Amorphous carbon films deposited by direct current-magnetron sputtering: Void distribution investigated by gas effusion and small angle X-ray scattering experiments
F. L. Freire, L. G. Jacobsohn, D. F. Franceschini, S. S. Camargo
Journal of Vacuum Science and Technology A Vacuum Surfaces and Films, 2000
Plasma-deposited a-C(N):H films
D.F. Franceschini
Brazilian Journal of Physics, 2000
Statistical models for carbon-nitrogen film growth
F. D. A. Aarão Reis, D. F. Franceschini
Physical Review E Statistical Physics Plasmas Fluids and Related Interdisciplinary Topics, 2000
Two species model for deposition and erosion of carbon-nitrogen films
F. D. A. Aarão Reis, D. F. Franceschini
Applied Physics Letters, 1999
Growth kinetics and relationship between structure and mechanical properties of a-C(N):H films deposited in acetylene-nitrogen atmospheres
L. G. Jacobsohn, F. L. Freire, D. F. Franceschini, M. M. Lacerda, G. Mariotto
Journal of Vacuum Science and Technology A Vacuum Surfaces and Films, 1999
Nitrogen modification of hydrogenated amorphous carbon films
S. R. P. Silva, J. Robertson, G. A. J. Amaratunga, B. Rafferty, L. M. Brown, J. Schwan, D. F. Franceschini, G. Mariotto
Journal of Applied Physics, 1997
Study of nitrogen implanted amorphous hydrogenated carbon thin films by variable-energy positron annihilation spectroscopy
F. L. Freire, D. F. Franceschini, R. S. Brusa, G. R. Karwasz, G. Mariotto, A. Zecca, C. A. Achete
Journal of Applied Physics, 1997
Structure and mechanical properties of hard amorphous carbon-nitrogen films obtained by plasma decomposition of methane-ammonia mixtures
F.L. Freire, D.F. Franceschini
Thin Solid Films, 1997
Hydrogenated carbon-nitrogen films obtained by PECVD using acetylene and nitrogen as precursor gases
L. G. Jacobsohn, D. F. Franceschini, F. L. Freire
Materials Research Society Symposium Proceedings, 1997
Hard a-C(N):H films obtained from plasma decomposition of methylamine-containing mixtures
M.M. Lacerda, D.F. Franceschini, F.L. Freire, G. Mariotto
Diamond and Related Materials, 1997
Carbon nitride thin films prepared by reactive sputtering: Elemental composition and structural characterization
M. M. Lacerda, D. F. Franceschini, F. L. Freire, C. A. Achete, G. Mariotto
Journal of Vacuum Science and Technology A Vacuum Surfaces and Films, 1997
Structure and properties of a-C:H films deposited onto polymeric substrates
S. Vasquez, C.A. Achete, C.P. Borges, D.F. Franceschini, F.L. Freire, E. Zanghellini
Diamond and Related Materials, 1997
Influence of precursor gases on the structure of plasma deposited amorphous hydrogenated carbon-nitrogen films
D. F. Franceschini, F. L. Freire, S. R. P. Silva
Applied Physics Letters, 1996
Nitrogen implantation into amorphous carbon films: SIMS and positron annihilation analyses
Brazilian Journal of Physics, 1996
Hard amorphous hydrogenated carbon-nitrogen films obtained by PECVD in methane-ammonia atmospheres
D.F. Franceschini, F.L. Freire, C.A. Achete, G. Mariotto
Diamond and Related Materials, 1996
Atomic force microscopy of amorphous hydrogenated carbon-nitrogen films deposited by radio-frequency-plasma decomposition of methane-ammonia gas mixtures
R. Prioli, S. I. Zanette, A. O. Caride, D. F. Franceschini, F. L. Freire
Journal of Vacuum Science and Technology A Vacuum Surfaces and Films, 1996
Nitrogenated amorphous carbon as a semiconductor
S.R.P. Silva, B. Rafferty, G.A.J. Amaratunga, J. Schwan, D.F. Franceschini, L.M. Brown
Diamond and Related Materials, 1996
Structural disorder in hard amorphous carbon films implanted with nitrogen ions
Materials Research Society Symposium Proceedings, 1996
Amorphous hydrogenated carbon nitride films obtained by plasma-enhanced chemical vapour deposition
F.L. Freire, G. Mariotto, C.A. Achete, D.F. Franceschini
Surface and Coatings Technology, 1995
Nitrogen Incorporation into Hard Amorphous Carbon Films Obtained by RF Plasma Decomposition of CH4‐N2 Gas Mixtures
F. L. Freire, J. R. Lazaro, D. F. Franceschini, C. A. Achete
Physica Status Solidi B, 1995
In-depth modifications of implanted amorphous carbon films
F. L. Freire, C. A. Achete, D. F. Franceschini, G. Mariotto
Applied Physics A Solids and Surfaces, 1994
RBS, ERDA and NR analyses of hard amorphous nitrogen-incorporated carbon films
F.L. Freire, D.F. Franceschini, C.A. Achete
Nuclear Inst and Methods in Physics Research B, 1994
Structural modifications in a-C:H films doped and implanted with nitrogen
D.F. Franceschini, C.A. Achete, F.L. Freire, W. Beyer, G. Mariotto
Diamond and Related Materials, 1994
Characterization of hard amorphous carbon films implanted with nitrogen ions
F.L. Freire, C.A. Achete, D.F. Franceschini, C. Gatts, G. Mariotto
Nuclear Inst and Methods in Physics Research B, 1993
Internal stress reduction by nitrogen incorporation in hard amorphous carbon thin films
D. F. Franceschini, C. A. Achete, F. L. Freire
Applied Physics Letters, 1992
Magnetic and electrical properties of iron-rich Ce(Fe1-xAlx)2 intermetallics: some remarks
S.F. da Cunha, D.F. Franceschini, A.A. Gomes, A.Y. Takeuchi
Journal of Magnetism and Magnetic Materials, 1986
Magnetic properties of Ce(Fe1-xAlx)2 for x≤0.20
D.F. Franceschini, S.F. da Cunha
Journal of Magnetism and Magnetic Materials, 1985

dante ferreira franceschini

EDUCATION

RESEARCH, TEACHING, or OTHER INTERESTS

Scopus Publications