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385 results on '"ESPOSITO CORCIONE, Carola"'

51. Development and characterization of sustainable PLA/Olive wood waste composites for rehabilitation applications using Fused Filament Fabrication (FFF)

Author

Fico, Daniela, Rizzo, Daniela, De Carolis, Valentina, Montagna, Francesco, Palumbo, Elisabetta, and Esposito Corcione, Carola

Subjects
Circular economy, Requalification, Mechanics of Materials, Additive manufacturing (AM), Olive wood scraps, LCA, Architecture, Settore ICAR/11 - Produzione Edilizia, Building and Construction, Safety, Risk, Reliability and Quality, Civil and Structural Engineering
Published
2022

61. Rheological and physical characterization of PEDOT: PSS/graphene oxide nanocomposites for perovskite solar cells

Author

Giuri, Antonella, Masi, Sofia, Colella, Silvia, Listorti, Andrea, Rizzo, Aurora, Kovtun, Alessandro, Dell'Elce, Simone, Liscio, Andrea, Esposito Corcione, Carola, Giuri, Antonella, Masi, Sofia, Colella, Silvia, Listorti, Andrea, Rizzo, Aurora, Kovtun, Alessandro, Dell'Elce, Simone, Liscio, Andrea, Esposito Corcione, Carola, and ESPOSITO CORCIONE, Carola

Subjects
Materials Chemistry2506 Metals and Alloys, Materials science, Polymers and Plastics, Oxide, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, law.invention, Contact angle, chemistry.chemical_compound, PEDOT:PSS, law, nanocomposites, Materials Chemistry, Thermal stability, Composite material, Perovskite (structure), chemistry.chemical_classification, Polymers and Plastic, Nanocomposite, Graphene, Chemistry (all), General Chemistry, Polymer, 021001 nanoscience & nanotechnology, 0104 chemical sciences, chemistry, graphene oxide, rheology, 0210 nano-technology
Abstract

In this work, the influence of graphene oxide (GO) doped poly(3,4 ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) thin nanocomposite on an indium–tin-oxide (ITO) anode, as hole transport layer (HTL) in perovskite solar cells, was investigated. Different concentrations of GO were added into the PEDOT:PSS in order to enhance its conductivity. In particular, the influence of GO content on the rheological and thermal properties of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)/GO nanocomposites was initially examined. The GO filler was prepared by using modified Hummers method and dispersed into PEDOT:PSS in different quantity (ranging from 0.05 to 0.25%wt/wt). The obtained nanocomposite solutions were analyzed by rheological characterizations in order to evaluate the influence of the GO filler on the viscosity of the PEDOT:PSS matrix. The wettability of solutions was evaluated by Contact Angle (CA) measurements. The quality of GO dispersion into the polymer matrix was studied using Scanning electron microscopy (SEM) and X-ray diffraction (XRD). Thermal characterizations (DSC and TGA) were, finally, applied on nanocomposite films in order to evaluate thermal stability of the films as well as to indirectly comprehend the GO influence on PEDOT:PSS-water links. POLYM. ENG. SCI., 57:546–552, 2017. © 2017 Society of Plastics Engineers.

Published
2017

70. Quantum Nature of Light in Nonstoichiometric Bulk Perovskites

Author

Suárez-Forero, Daniel G., primary, Giuri, Antonella, additional, De Giorgi, Milena, additional, Polimeno, Laura, additional, De Marco, Luisa, additional, Todisco, Francesco, additional, Gigli, Giuseppe, additional, Dominici, Lorenzo, additional, Ballarini, Dario, additional, Ardizzone, Vincenzo, additional, Belviso, Benny D., additional, Altamura, Davide, additional, Giannini, Cinzia, additional, Brescia, Rosaria, additional, Colella, Silvia, additional, Listorti, Andrea, additional, Esposito Corcione, Carola, additional, Rizzo, Aurora, additional, and Sanvitto, Daniele, additional

Published
2019
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76. Organically modified montmorillonite polymer nanocomposites for stereolithography building process

Author

ESPOSITO CORCIONE, Carola, STRIANI, RAFFAELLA, MONTAGNA, FRANCESCO, CANNOLETTA, Donato Pompilio, ESPOSITO CORCIONE, Carola, Striani, Raffaella, Montagna, Francesco, and Cannoletta, Donato Pompilio

Subjects
nanocomposite, photopolymerization, montmorillonite, stereolithography
Abstract

Novel photopolymerizable nanocomposite formulations, able to photopolymerize with a dual curing mechanism (cationic and radical), were developed, characterized and used in the stereolithography (SL) process for the construction of 3D objects with a very simple geometry. The influence of the presence of organically modified montmorillonite (OM) nanoparticles on the reactivity of the photopolymerizable liquid mixtures was firstly analyzed, as function of the amount of nanofiller, by photocalorimetric analysis (p-DSC). The basal distance of OM before and after mixing with the photocurable formulation was characterized by X-ray diffraction. Composites with higher content of OM show an intercalated structure. An exfoliated structurewas instead observed in the compositeswith the lowestOMcontent, after photocuring in the SL apparatus. These results were also confirmed by the morphological analysis performed by SEM. The glass transition temperature of nanocomposites, photocured by stereolithography, was finally measured by TMA and DSC techniques, confirming that the photocurable formulation loaded with the lowest amount of OM presents improved properties than the unloaded formulation.

Published
2015

77. Graphene Oxide as Nanomaterial and Catalyst

Author

Gaetano Guerra, a, Maria Rosaria Acocella, a Mario Maggio, a. Marco Mauro, a. Pasquale Longo, Maurizio Galimberti, b. Luca Giannini, ESPOSITO CORCIONE, Carola, MAFFEZZOLI, Alfonso, Gaetano, Guerra, A, Maria Rosaria, Acocella, a Mario, Maggio, A., Marco Mauro, A., Pasquale Longo, Maurizio, Galimberti, B., Luca Giannini, ESPOSITO CORCIONE, Carola, and Maffezzoli, Alfonso

Published
2015

80. Ultra-Bright Near-Infrared Perovskite Light-Emitting Diodes with Reduced Efficiency Roll-off

Author

Giuri, Antonella, primary, Yuan, Zhongcheng, additional, Miao, Yanfeng, additional, Wang, Jianpu, additional, Gao, Feng, additional, Sestu, Nicola, additional, Saba, Michele, additional, Bongiovanni, Giovanni, additional, Colella, Silvia, additional, Esposito Corcione, Carola, additional, Gigli, Giuseppe, additional, Listorti, Andrea, additional, and Rizzo, Aurora, additional

Published
2018
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87. GO/PEDOT:PSS nanocomposites: effect of different dispersing agents on rheological, thermal, wettability and electrochemical properties

Author

Giuri, Antonella, primary, Masi, Sofia, additional, Colella, Silvia, additional, Listorti, Andrea, additional, Rizzo, Aurora, additional, Liscio, Andrea, additional, Treossi, Emanuele, additional, Palermo, Vincenzo, additional, Gigli, Giuseppe, additional, Mele, Claudio, additional, and Esposito Corcione, Carola, additional

Published
2017
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94. UV cured methacrylic-siloxane based nanocomposites as potential coating for Cultural Heritage protection

Author

ESPOSITO CORCIONE, Carola, FRIGIONE, Mariaenrica, P. Frediani. M. Frediani, L. Rosi Eds., ESPOSITO CORCIONE, Carola, and Frigione, Mariaenrica

Abstract

Novel nanocomposite UV - cured coatings, based on photopolymerizable siloxane-modified acrylic formulations with the addition of organo-modified Boehmite (OMB), are proposed as potential protective coatings for porous stones and wood elements. The OMB nanofiller has been dispersed into an optimized acrylic-based formulation in the presence of a proper photoinitiator for UV-curing. This represents the first example of the use of Boehmite-based UV-cured nanocomposite in the field of Cultural Heritage. The advantages offered by UV-cured coatings with respect to traditional heat-cured ones mainly reside in the attainment of superior performance achievable in less time. The use of a nanocomposite protective coating will guarantee better surface properties and durability characteristics. In this chapter, the characterization of the innovative liquid photopolymerizable siloxane-modified acrylic formulations, both in presence or absence of OMB nanoparticles, is presented in order to assess the suitability of the proposed products for the specific applications. A wide experimental characterization of the solid coatings, applied on different substrate and photo-cured by using a medium pressure Hg UV lamp, is illustrated, in order to assess the attainment of the expected superior properties in terms of transparency, hydrophobicity, surface resistance, glass transition temperature, among the most important. An accelerated weathering procedure is proposed as a means to evaluate the weathering resistance of the coatings.

Published
2013

95. The aspect ratio of nanofillers:A key properties affecting the performances of polymer matrix nanocomposites

Author

ESPOSITO CORCIONE, Carola, GRECO, Antonio, MAFFEZZOLI, Alfonso, ESPOSITO CORCIONE, Carola, Greco, Antonio, and Maffezzoli, Alfonso

Abstract

The engineering aspects associated with nanocomposite development are strongly dependent on the final properties that can be achieved as well as on their processability. Both features are affected by the average distribution of nanofiller in the matrix, or in other words by its dispersion. Furthermore, characterization of intercalation or exfoliation of organic modified montmorillonite (omMMT) or graphene lamellae by X-ray or transmission electron microscopy cannot be easily related to nanocomposite macroscopic properties (mechanical, rheological etc.), the most relevant from an engineering point of view. On the other hand mechanical and rheological analysis shows that properties of nanocomposites are not only dependent from lamellar spacing but also the aspect ratio plays a key role. Even if single graphene sheets or single omMMT are not observed in the matrix bulk, a high aspect ratio of the filler can generate a significant improvement of macroscopic properties. Finally, the measurements of engineering properties of nanocomposites not only represent an objective but can provide information about the average degree of dispersion. Comparison of mechanical and rheological properties with simple mathematical models can be used to determine the average aspect ratio of nanofillers. It may be concluded that macrocharacterization can represent a valuable and complementary tool for the morphological characterization of nanocomposites being capable of providing information about the level of dispersion of nanocomposites.

Published
2012

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