Stefano Enzo
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View article: One-pot sol–gel synthesis of Sr/Ca-doped silica nanoparticles for osteogenic therapy in osteoporosis
One-pot sol–gel synthesis of Sr/Ca-doped silica nanoparticles for osteogenic therapy in osteoporosis Open
Osteoporosis affects more than 200 million people worldwide, with an osteoporotic fracture occurring approximately every 3 seconds; with ageing populations, its prevalence continues to rise, yet it remains under-diagnosed and under-treated…
View article: Lead‐Free (K <sub>0.5</sub> Na <sub>0.5</sub> )NbO <sub>3</sub> Unmodified Piezoceramics: A Reduction in the Energetic Budget of Solid State Synthesis and Sintering
Lead‐Free (K <sub>0.5</sub> Na <sub>0.5</sub> )NbO <sub>3</sub> Unmodified Piezoceramics: A Reduction in the Energetic Budget of Solid State Synthesis and Sintering Open
Replacement of the ubiquitous lead titanate zirconate piezoceramics is still a challenge involving sustainable materials and processes. An extended effort has been paid for the optimization of the properties of (K 0.5 Na 0.5 )NbO 3 (KNN) l…
View article: High Purity, Crystallinity and Electromechanical Sensitivity of Lead-Free (Ba0.85Ca0.15)(Zr0.10Ti0.90)O3 Synthesized Using an EDTA/glycerol Modified Pechini Method
High Purity, Crystallinity and Electromechanical Sensitivity of Lead-Free (Ba0.85Ca0.15)(Zr0.10Ti0.90)O3 Synthesized Using an EDTA/glycerol Modified Pechini Method Open
A single (Ba0.85Ca0.15)(Zr0.10Ti0.90)O3 phase material with a tetragonal structure is processed and synthesized with a modified Pechini method using ethylenediaminetetraacetic acid and glycerol as chelating and esterifying agents, respecti…
View article: Multipurpose X-Ray Stage and Its Application for In Situ Poling Studies
Multipurpose X-Ray Stage and Its Application for In Situ Poling Studies Open
A 3D-printable, ARDUINO-based multipurpose X-ray stage of compact dimensions enabling in situ electric field and temperature-dependent measurements is put into practice and tested here. It can be routinely applied in combination with a tec…
View article: Multipurpose X-Ray Stage and Its Application for In-Situ Poling Studies
Multipurpose X-Ray Stage and Its Application for In-Situ Poling Studies Open
A 3D-printable, ARDUINO-based multipurpose X-ray stage of compact dimensions enabling in-situ electric field and temperature dependent measurements is put into practice and tested here. It can be routinely applied in combination with a tec…
View article: Structural Evolution of Olivine during Mechanochemically Assisted Mineral Carbonation under CO2 Flow
Structural Evolution of Olivine during Mechanochemically Assisted Mineral Carbonation under CO2 Flow Open
The mechanism of the mechanically assisted mineral carbonation of commercial olivine under the flow of a carbon dioxide (CO2)/nitrogen (N2) mixture has been elucidated by ex situ powder X-ray diffraction and Fourier-transform infrared spec…
View article: Structural Evolution of Olivine during Mechanochemically-Assisted Mineral Carbonation under CO2 Flow
Structural Evolution of Olivine during Mechanochemically-Assisted Mineral Carbonation under CO2 Flow Open
The mechanism of the mechanically assisted mineral carbonation of commercial olivine under flow of CO2/N2 mixture has been elucidated by ex situ powder X-ray diffraction and Fourier-transform infrared spectroscopy. The overall CO2 conversi…
View article: BaZrO3-BaTiO3-CaTiO3 piezoceramics by a water-based mixed-oxide route: Synergetic action of attrition milling and lyophilization
BaZrO3-BaTiO3-CaTiO3 piezoceramics by a water-based mixed-oxide route: Synergetic action of attrition milling and lyophilization Open
This manuscript shows an innovative water-based processing route to fabricate lead-free piezoceramics. It faces the challenge of substituting conventionally used organic solvents by innocuous water. The procedure involves two methods of wi…
View article: Phosphorescence by Trapping Defects in Boric Acid Induced by Thermal Processing
Phosphorescence by Trapping Defects in Boric Acid Induced by Thermal Processing Open
The phosphorescence of boric acid (BA, H 3 BO 3 ) at room temperature is a puzzling phenomenon subject to controversial interpretations although the role of structural defects has not yet been considered. Heat treatments of boric acid caus…
View article: Phosphorescence by trapping defects in boric acid induced by thermal processing
Phosphorescence by trapping defects in boric acid induced by thermal processing Open
The phosphorescence of boric acid at room temperature is a puzzling phenomenon subject to controversial interpretations although the role of structural defects has not yet been considered. Heat treatments of boric acid cause its transforma…
View article: Preparation of Jute Waste-Based Activated Carbon Supported Copper Oxide Nanoparticles for Hydrogen Storage in MgH2
Preparation of Jute Waste-Based Activated Carbon Supported Copper Oxide Nanoparticles for Hydrogen Storage in MgH2 Open
The generation of hydrogen fuel cars is a burning issue worldwide due to the rapid growth of energy demand and depletion of fossil energy resources, together with the need for a successful strategy to reduce the successive increase of gree…
View article: Solid State Processing of BCZT Piezoceramics Using Ultra Low Synthesis and Sintering Temperatures
Solid State Processing of BCZT Piezoceramics Using Ultra Low Synthesis and Sintering Temperatures Open
Lead-free (Ba0.92Ca0.08) (Ti0.95 Zr0.05) O3 (BCZT) ceramics were prepared by a solid-state route (SSR) using ultra-low synthesis (700 °C/30 min and 700 °C/2 h) and sintering temperatures (from 1150 °C to 1280 °C), due to prior activation a…
View article: Processing, phase evolution and electrical properties of “lead free” KNN–BF–CuO eco-piezoceramic from mechanochemically activated precursors
Processing, phase evolution and electrical properties of “lead free” KNN–BF–CuO eco-piezoceramic from mechanochemically activated precursors Open
“Lead free” piezoceramics 0.99K0.5Na0.5NbO3-0.01BiFeO3 (KNN–BF) with increasing amount of CuO (0, 0.5, 1 wt.%) were prepared through a scalable combination of High Energy Ball Milling, calcination at 900 °C and air sintering. The effect of…
View article: As(III, V) Uptake from Nanostructured Iron Oxides and Oxyhydroxides: The Complex Interplay between Sorbent Surface Chemistry and Arsenic Equilibria
As(III, V) Uptake from Nanostructured Iron Oxides and Oxyhydroxides: The Complex Interplay between Sorbent Surface Chemistry and Arsenic Equilibria Open
Iron oxides/oxyhydroxides, namely maghemite, iron oxide-silica composite, akaganeite, and ferrihydrite, are studied for AsV and AsIII removal from water in the pH range 2–8. All sorbents were characterized for their structural, morphologic…
View article: Processing Optimization and Toxicological Evaluation of “Lead-Free” Piezoceramics: A KNN-Based Case Study
Processing Optimization and Toxicological Evaluation of “Lead-Free” Piezoceramics: A KNN-Based Case Study Open
Due to the ever-increasing limitations of the use of lead-based materials, the manufacturing of lead-free piezoceramics with competitive piezoelectric properties and established nontoxicity is considered a priority for the scientific and i…
View article: MgNb<sub>2</sub>O<sub>6</sub> Modified K<sub>0.5</sub>Na<sub>0.5</sub>NbO<sub>3</sub> Eco‐Piezoceramics: Scalable Processing, Structural Distortion and Complex Impedance at Resonance
MgNb<sub>2</sub>O<sub>6</sub> Modified K<sub>0.5</sub>Na<sub>0.5</sub>NbO<sub>3</sub> Eco‐Piezoceramics: Scalable Processing, Structural Distortion and Complex Impedance at Resonance Open
In this work, piezoceramics of the lead‐free composition K 0.5 Na 0.5 NbO 3 with an increasing amount of MgNb 2 O 6 (0, 0.5, 1, 2 wt.%) were prepared through conventional solid‐state synthesis and sintered in air atmosphere at 1100 °C. The…
View article: Boron Nitride–Titania Mesoporous Film Heterostructures
Boron Nitride–Titania Mesoporous Film Heterostructures Open
The fabrication of optically active heterostructures in the shape of mesostructured thin films is a highly challenging task. It requires an integrated process to allow in one-step incorporating the two-dimensional materials within the meso…
View article: Solvent-Free Mechanochemical Approach towards Thiospinel MgCr2S4 as a Potential Electrode for Post-Lithium Ion Batteries
Solvent-Free Mechanochemical Approach towards Thiospinel MgCr2S4 as a Potential Electrode for Post-Lithium Ion Batteries Open
Several new compounds, with desirable properties of ion mobility and working voltage, have been recently proposed using a density functional theory (DFT) computational approach as potential electrode materials for beyond-lithium battery sy…
View article: CO2 Hydrogenation Induced by Mechanochemical Activation of Olivine With Water Under CO2 Atmosphere
CO2 Hydrogenation Induced by Mechanochemical Activation of Olivine With Water Under CO2 Atmosphere Open
A study on the mechanochemical activation of the olivine in presence of H2O and under CO2 atmosphere have been approached, focusing both on the structural nature of the transformation and the conversion of CO2 to methane and light hydrocar…
View article: A mechanochemical route for the synthesis of VNbO<sub>5</sub> and its structural re-investigation using structure solution from powder diffraction data
A mechanochemical route for the synthesis of VNbO<sub>5</sub> and its structural re-investigation using structure solution from powder diffraction data Open
VNbO5 with a revised space group P212121 versus Pnma has been successfully synthesized by a solvent-free mechanochemical route.
View article: Local Piezoelectric Behavior of Potassium Sodium Niobate Prepared by a Facile Synthesis via Water Soluble Precursors
Local Piezoelectric Behavior of Potassium Sodium Niobate Prepared by a Facile Synthesis via Water Soluble Precursors Open
Due to the ever‐increasing restrictions connected to the use of toxic lead‐based materials, the developing of lead‐free piezoceramics has become one of the most urgent tasks. In this context, potassium sodium niobate materials (KNN) have a…
View article: Advanced Synthesis on Lead‐Free K<sub>x</sub>Na<sub>(1−x)</sub>NbO<sub>3</sub> Piezoceramics for Medical Imaging Applications
Advanced Synthesis on Lead‐Free K<sub>x</sub>Na<sub>(1−x)</sub>NbO<sub>3</sub> Piezoceramics for Medical Imaging Applications Open
Ultrasonic imaging system is a non‐invasive medical imaging technique that has become one of the most widely used diagnostic tools in modern medicine for detecting prenatal anomalies and deep screening of biological tissues. One of the cor…