Maurizio E Musso - Profile on Academia.edu (original) (raw)

Papers by Maurizio E Musso

Inorganic Chemistry, Oct 9, 2015

Cubic Li7La3Zr2O12 (LLZO) garnets are exceptionally well suited to be used as solid electrolytes ... more Cubic Li7La3Zr2O12 (LLZO) garnets are exceptionally well suited to be used as solid electrolytes or protecting layers in "Beyond Li-ion Battery" concepts. Unfortunately, cubic LLZO is not stable at room temperature (RT) and has to be stabilized by supervalent dopants. In this study we demonstrate a new possibility to stabilize the cubic phase at RT via substitution of Zr 4+ by Mo 6+ . A Mo 6+ content of 0.25 per formula unit (pfu) stabilizes the cubic LLZO phase and the solubility limit is about 0.3 Mo 6+ pfu. Based on the results of neutron powder diffraction and Raman spectroscopy, Mo 6+ is located at the octahedrally coordinated 16a site of the cubic garnet structure (space group Ia-3d). Since Mo 6+ has a smaller ionic radius compared to Zr 4+ the lattice parameter a0 decreases almost linearly as a function of the Mo 6+ content. The highest bulk Li-ion conductivity is found for the 0.25 pfu composition, with a typical room temperature value of 3.4 × 10 -4 S cm -1 . An additional significant resistive contribution originating from the sample interior (most probably from grain boundaries) could be identified in impedance spectra. The latter strongly depends on the prehistory and increases significantly after annealing at 700 °C in ambient air. Cyclic voltammetry experiments on cells containing Mo 6+ substituted LLZO indicates that the material is stable up to 6 V.

ACS Applied Materials & Interfaces, Mar 4, 2020

We report on a quick, simple, and cost-effective solution-phase approach to prepare centimeter-si... more We report on a quick, simple, and cost-effective solution-phase approach to prepare centimeter-sized morphology-graded vertically aligned Si nanowire arrays. Gradients in the nanowire diameter and shape are encoded through the macroscale substrate via a "dip-etching" approach, where the substrate is removed from a KOH etching solution at a constant rate, while morphological control at the nanowire level is achieved via sequential metalassisted chemical etching and KOH etching steps. This combined approach provides control over light absorption and reflection within the nanowire arrays at both the macroscale and nanoscale, as shown by UV-vis spectroscopy and numerical three-dimensional finite-difference time-domain simulations. Macroscale morphology gradients yield arrays with gradually changing optical properties. Nanoscale morphology control is demonstrated by synthesizing arrays of bisegmented nanowires, where the nanowires are composed of two distinct segments with independently controlled lengths and diameters. Such nanowires are important to tailor light-matter interactions in functional devices, especially by maximizing light absorption at specific wavelengths and locations within the nanowires.

Journal of Applied Physics, Apr 2, 2021

We present a perspective of the industrial realization of plasmonic devices especially for life s... more We present a perspective of the industrial realization of plasmonic devices especially for life science and in vitro diagnostic applications. The main focus is on the manufacturing technologies Nanoimprint Lithography and injection molding as scalable processes for high volume manufacturing. Both technologies have their individual strengths and technical restrictions, which are discussed along different examples for plasmonic applications especially for biosensor applications.

Steric hindrance effects of phenyl groups on the noncoincidence effect of the nu(C=O) Raman band in molecular liquids

EMLG/JMLG Annual Meeting, #R##N#Liquid systems under extreme conditions, 2006

Magnetic and phononic brillouin scattering in NiO

Search for intermolecular vibrational resonance interactions in liquid nitrogen and liquid oxygen

Spectroscopic investigations of selected yellow blooming flowers of ranunculaceae; brassicaceae and asteraceae

An Investigation of the Raman Noncoincidence Effect in Acetone/ CCl4 Binary Mixtures

A novel skutterudite phase in the Ni$ndash$Sb$ndash$Sn system: phase equilibria and physical properties

Journal of Physics: Condensed Matter, 2002

A novel ternary phase, SnyNi4Sb12-xSnx, has been characterized and found to exhibit a wide range ... more A novel ternary phase, SnyNi4Sb12-xSnx, has been characterized and found to exhibit a wide range of homogeneity (at 250 °C, 2.4 <= x <= 5.6, 0 <= y <= 0.31; at 350 °C, 2.7 <= x <= 5.0, 0 <= y <= 0.27). SnyNi4Sb12-xSnx crystallizes in a skutterudite-based structure in which Sn atoms are found to occupy two crystallographically inequivalent

e-Journal of Nondestructive Testing

Here it is reported a multidisciplinary approach based on tomography and infrared techniques appl... more Here it is reported a multidisciplinary approach based on tomography and infrared techniques applied to the characterization of tannin porous rigid foams, potentially usable as new insulating materials in green building technology. With conventional x-ray tomography it was possible to preliminary evaluate the homogeneity of the samples at low resolution, while then, thanks to the synchrotron source, it was possible to obtain more detailed information at a micro-scale level. At the same time chemical characterization was done through Fourier Transform infrared (FTIR) imaging. Conventionally, FTIR imaging is limited to a planar projection, not considering the 3D structure of the material. To avoid this limitation, a FTIR 3D-tomography setup was built and the foams characterized by a chemical point of view. The idea is to directly correlate these data with the 3D-structural information obtained with the x-ray computed tomography exploiting the synchrotron radiation as source, allowing ...

The Journal of Physical Chemistry Letters, 2015

The solvation structure around the Li + ion in a mixed cyclic/linear carbonate solution, an impor... more The solvation structure around the Li + ion in a mixed cyclic/linear carbonate solution, an important factor for the performance of lithium-based rechargeable batteries, is examined by measuring and analyzing the noncoincidence effect observed for the CO stretching Raman band. This technique has the advantage of perceiving relative distances and orientations of solvent molecules clustering around an ion in the first solvation shell and, hence, of developing information on the solvation structure along the wavenumber axis rather than along the intensity axis of the spectra. It is shown that, taking the solution of Li + ClO 4 − in the 1:1 mixed solvent of propylene carbonate (PC) and diethyl carbonate (DEC) as an example case, the Li + ion is preferentially solvated by PC molecules [primarily as (PC) 3 (DEC) 1 Li + ] and is totally protected from direct interaction (contact ion pairing) with the ClO 4 − ion. The solvation structures in neat PC and neat DEC solvents are also discussed.

UV-laser-induzierte Chemilumineszenz von NaCd- und NaHg- Excimeren

Jahrestagung der Österreichischen Physikalischen Gesellschaft, 1989

UV Laser-induced Chemiluminescence of NaCd and NaHg Excimers

Measurement Science and Technology, Nov 20, 2000

The absolute refractive index of liquid sulphur dioxide (SO 2) was determined with an uncertainty... more The absolute refractive index of liquid sulphur dioxide (SO 2) was determined with an uncertainty of ±0.0007 with the help of a Michelson interferometer and a computer-controlled rotatory stage supporting a rectangular fused silica cell, containing the liquid. The measurements were performed at temperatures around 20 • C for the laser line wavelengths 632.8, 514.5 and 488.0 nm. The experimental data were fitted to the simple Cauchy dispersion formula. The results calculated from this formula are consistent within the experimental uncertainty with published values obtained at other wavelengths and/or other temperatures.

Temperature-dependent Raman characterization of Stibnite (Sb2S3)

The Enigma Thermochromic Behavior in Tetraalkyle Distibines (R4Sb2)' in Proceedings of Joint Annual Meeting of the Austrian Physical Society and the Swiss Physical Society

Polarization-dependent Raman spectra Stibnite (Sb2S3)

Tannin-furanic foams used as biomaterial substrates for SERS sensing in possible wastewater filter applications

Materials Research Express, 2021

Simple substrates for surface enhanced Raman spectroscopy (SERS), producible in a cost-efficient ... more Simple substrates for surface enhanced Raman spectroscopy (SERS), producible in a cost-efficient way, are of growing interest both for scientific and for environmental applications. In this study, we demonstrate the use of three types of bio-based tannin-furanic rigid foams as precursor materials for SERS substrates. Coated with a silver layer, these substrates allowed the detection of several well-known analytes in the mM regime by Raman spectroscopy. Specific optimization of the standard tannin-furanic foam morphology by tuning the chemical synthesis led to a smaller and more homogeneously distributed pore structure, supplying more active hot spot areas. Thus, we obtained a significant increase and a lower relative standard deviation (RSD) of the SERS signal recorded over the mapped SERS substrate area, for several analytes, in particular for Malachite Green dye. This work represents a feasibility study opening several potential applications of this biopolymers in fields such as t...

Vibrational double relaxation in liquid SO2 , determined ba brillouin spectroscopy

ACS Applied Nano Materials, 2021

A promising route to monolithic, hollow sphere carbon assemblies based on sustainable precursors ... more A promising route to monolithic, hollow sphere carbon assemblies based on sustainable precursors with a tailored nanostructure is presented. These carbon assemblies, recently termed carbon spherogels, are generated via a polystyrene sphere template-based sol-gel process of mimosa tannin and biomass-derived 5-(hydroxymethyl)furfural. By completely replacing petroleum-based precursors (especially toxic formaldehyde) highly porous, nanoscale carbon monoliths are obtained, which are investigated as state-of-the-art, sustainable electrode materials for energy storage. This study defines the required synthesis parameters, in particular the highly acidic initial pH and a tannin/water ratio of at least 0.05 or lower, for a successful and homogeneous generation of these biobased carbon spherogels.

Inorganic Chemistry, Oct 9, 2015

Cubic Li7La3Zr2O12 (LLZO) garnets are exceptionally well suited to be used as solid electrolytes ... more Cubic Li7La3Zr2O12 (LLZO) garnets are exceptionally well suited to be used as solid electrolytes or protecting layers in "Beyond Li-ion Battery" concepts. Unfortunately, cubic LLZO is not stable at room temperature (RT) and has to be stabilized by supervalent dopants. In this study we demonstrate a new possibility to stabilize the cubic phase at RT via substitution of Zr 4+ by Mo 6+ . A Mo 6+ content of 0.25 per formula unit (pfu) stabilizes the cubic LLZO phase and the solubility limit is about 0.3 Mo 6+ pfu. Based on the results of neutron powder diffraction and Raman spectroscopy, Mo 6+ is located at the octahedrally coordinated 16a site of the cubic garnet structure (space group Ia-3d). Since Mo 6+ has a smaller ionic radius compared to Zr 4+ the lattice parameter a0 decreases almost linearly as a function of the Mo 6+ content. The highest bulk Li-ion conductivity is found for the 0.25 pfu composition, with a typical room temperature value of 3.4 × 10 -4 S cm -1 . An additional significant resistive contribution originating from the sample interior (most probably from grain boundaries) could be identified in impedance spectra. The latter strongly depends on the prehistory and increases significantly after annealing at 700 °C in ambient air. Cyclic voltammetry experiments on cells containing Mo 6+ substituted LLZO indicates that the material is stable up to 6 V.

ACS Applied Materials & Interfaces, Mar 4, 2020

We report on a quick, simple, and cost-effective solution-phase approach to prepare centimeter-si... more We report on a quick, simple, and cost-effective solution-phase approach to prepare centimeter-sized morphology-graded vertically aligned Si nanowire arrays. Gradients in the nanowire diameter and shape are encoded through the macroscale substrate via a "dip-etching" approach, where the substrate is removed from a KOH etching solution at a constant rate, while morphological control at the nanowire level is achieved via sequential metalassisted chemical etching and KOH etching steps. This combined approach provides control over light absorption and reflection within the nanowire arrays at both the macroscale and nanoscale, as shown by UV-vis spectroscopy and numerical three-dimensional finite-difference time-domain simulations. Macroscale morphology gradients yield arrays with gradually changing optical properties. Nanoscale morphology control is demonstrated by synthesizing arrays of bisegmented nanowires, where the nanowires are composed of two distinct segments with independently controlled lengths and diameters. Such nanowires are important to tailor light-matter interactions in functional devices, especially by maximizing light absorption at specific wavelengths and locations within the nanowires.

Journal of Applied Physics, Apr 2, 2021

We present a perspective of the industrial realization of plasmonic devices especially for life s... more We present a perspective of the industrial realization of plasmonic devices especially for life science and in vitro diagnostic applications. The main focus is on the manufacturing technologies Nanoimprint Lithography and injection molding as scalable processes for high volume manufacturing. Both technologies have their individual strengths and technical restrictions, which are discussed along different examples for plasmonic applications especially for biosensor applications.

Steric hindrance effects of phenyl groups on the noncoincidence effect of the nu(C=O) Raman band in molecular liquids

EMLG/JMLG Annual Meeting, #R##N#Liquid systems under extreme conditions, 2006

Magnetic and phononic brillouin scattering in NiO

Search for intermolecular vibrational resonance interactions in liquid nitrogen and liquid oxygen

Spectroscopic investigations of selected yellow blooming flowers of ranunculaceae; brassicaceae and asteraceae

An Investigation of the Raman Noncoincidence Effect in Acetone/ CCl4 Binary Mixtures

A novel skutterudite phase in the Ni$ndash$Sb$ndash$Sn system: phase equilibria and physical properties

Journal of Physics: Condensed Matter, 2002

A novel ternary phase, SnyNi4Sb12-xSnx, has been characterized and found to exhibit a wide range ... more A novel ternary phase, SnyNi4Sb12-xSnx, has been characterized and found to exhibit a wide range of homogeneity (at 250 °C, 2.4 <= x <= 5.6, 0 <= y <= 0.31; at 350 °C, 2.7 <= x <= 5.0, 0 <= y <= 0.27). SnyNi4Sb12-xSnx crystallizes in a skutterudite-based structure in which Sn atoms are found to occupy two crystallographically inequivalent

e-Journal of Nondestructive Testing

Here it is reported a multidisciplinary approach based on tomography and infrared techniques appl... more Here it is reported a multidisciplinary approach based on tomography and infrared techniques applied to the characterization of tannin porous rigid foams, potentially usable as new insulating materials in green building technology. With conventional x-ray tomography it was possible to preliminary evaluate the homogeneity of the samples at low resolution, while then, thanks to the synchrotron source, it was possible to obtain more detailed information at a micro-scale level. At the same time chemical characterization was done through Fourier Transform infrared (FTIR) imaging. Conventionally, FTIR imaging is limited to a planar projection, not considering the 3D structure of the material. To avoid this limitation, a FTIR 3D-tomography setup was built and the foams characterized by a chemical point of view. The idea is to directly correlate these data with the 3D-structural information obtained with the x-ray computed tomography exploiting the synchrotron radiation as source, allowing ...

The Journal of Physical Chemistry Letters, 2015

The solvation structure around the Li + ion in a mixed cyclic/linear carbonate solution, an impor... more The solvation structure around the Li + ion in a mixed cyclic/linear carbonate solution, an important factor for the performance of lithium-based rechargeable batteries, is examined by measuring and analyzing the noncoincidence effect observed for the CO stretching Raman band. This technique has the advantage of perceiving relative distances and orientations of solvent molecules clustering around an ion in the first solvation shell and, hence, of developing information on the solvation structure along the wavenumber axis rather than along the intensity axis of the spectra. It is shown that, taking the solution of Li + ClO 4 − in the 1:1 mixed solvent of propylene carbonate (PC) and diethyl carbonate (DEC) as an example case, the Li + ion is preferentially solvated by PC molecules [primarily as (PC) 3 (DEC) 1 Li + ] and is totally protected from direct interaction (contact ion pairing) with the ClO 4 − ion. The solvation structures in neat PC and neat DEC solvents are also discussed.

UV-laser-induzierte Chemilumineszenz von NaCd- und NaHg- Excimeren

Jahrestagung der Österreichischen Physikalischen Gesellschaft, 1989

UV Laser-induced Chemiluminescence of NaCd and NaHg Excimers

Measurement Science and Technology, Nov 20, 2000

The absolute refractive index of liquid sulphur dioxide (SO 2) was determined with an uncertainty... more The absolute refractive index of liquid sulphur dioxide (SO 2) was determined with an uncertainty of ±0.0007 with the help of a Michelson interferometer and a computer-controlled rotatory stage supporting a rectangular fused silica cell, containing the liquid. The measurements were performed at temperatures around 20 • C for the laser line wavelengths 632.8, 514.5 and 488.0 nm. The experimental data were fitted to the simple Cauchy dispersion formula. The results calculated from this formula are consistent within the experimental uncertainty with published values obtained at other wavelengths and/or other temperatures.

Temperature-dependent Raman characterization of Stibnite (Sb2S3)

The Enigma Thermochromic Behavior in Tetraalkyle Distibines (R4Sb2)' in Proceedings of Joint Annual Meeting of the Austrian Physical Society and the Swiss Physical Society

Polarization-dependent Raman spectra Stibnite (Sb2S3)

Tannin-furanic foams used as biomaterial substrates for SERS sensing in possible wastewater filter applications

Materials Research Express, 2021

Simple substrates for surface enhanced Raman spectroscopy (SERS), producible in a cost-efficient ... more Simple substrates for surface enhanced Raman spectroscopy (SERS), producible in a cost-efficient way, are of growing interest both for scientific and for environmental applications. In this study, we demonstrate the use of three types of bio-based tannin-furanic rigid foams as precursor materials for SERS substrates. Coated with a silver layer, these substrates allowed the detection of several well-known analytes in the mM regime by Raman spectroscopy. Specific optimization of the standard tannin-furanic foam morphology by tuning the chemical synthesis led to a smaller and more homogeneously distributed pore structure, supplying more active hot spot areas. Thus, we obtained a significant increase and a lower relative standard deviation (RSD) of the SERS signal recorded over the mapped SERS substrate area, for several analytes, in particular for Malachite Green dye. This work represents a feasibility study opening several potential applications of this biopolymers in fields such as t...

Vibrational double relaxation in liquid SO2 , determined ba brillouin spectroscopy

ACS Applied Nano Materials, 2021

A promising route to monolithic, hollow sphere carbon assemblies based on sustainable precursors ... more A promising route to monolithic, hollow sphere carbon assemblies based on sustainable precursors with a tailored nanostructure is presented. These carbon assemblies, recently termed carbon spherogels, are generated via a polystyrene sphere template-based sol-gel process of mimosa tannin and biomass-derived 5-(hydroxymethyl)furfural. By completely replacing petroleum-based precursors (especially toxic formaldehyde) highly porous, nanoscale carbon monoliths are obtained, which are investigated as state-of-the-art, sustainable electrode materials for energy storage. This study defines the required synthesis parameters, in particular the highly acidic initial pH and a tannin/water ratio of at least 0.05 or lower, for a successful and homogeneous generation of these biobased carbon spherogels.