A5076989459- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Hydrogen Storage and Materials
- Extraction and Separation Processes
- Supercapacitor Materials and Fabrication
- Rare-earth and actinide compounds
- Advanced battery technologies research
- Intermetallics and Advanced Alloy Properties
- Ammonia Synthesis and Nitrogen Reduction
- Fuel Cells and Related Materials
- Semiconductor materials and interfaces
- Ionic liquids properties and applications
- Conducting polymers and applications
- Superconductivity in MgB2 and Alloys
- Electrocatalysts for Energy Conversion
- Chemical Looping and Thermochemical Processes
- Semiconductor materials and devices
- Magnesium Alloys: Properties and Applications
- Ferroelectric and Piezoelectric Materials
- Thermal and Kinetic Analysis
- Industrial Gas Emission Control
- Magnetic Properties of Alloys
- Electrochemical Analysis and Applications
- Catalysts for Methane Reforming
Sapienza University of Rome
2011-2025
Institute for Complex Systems
2015-2025
National Interuniversity Consortium of Materials Science and Technology
2020-2024
Istituto di Sessuologia Clinica
2017-2024
Energy Storage Systems (United States)
2024
Friedrich Schiller University Jena
2024
Helmholtz-Institute Ulm
2024
Karlsruhe Institute of Technology
2024
National Research Council
2016-2022
University of Basilicata
2012-2019
TiO2-(B) nanotubes show improved performances in Li-ion cells compared with lithium titanate spinels, but suffer from large irreversible capacity loss on the first charge/discharge cycle. By decoupling bulk (intercalation) and surface reactions of nanotube electrodes Li cells, major cause is identified its mitigation demonstrated by using chemical pretreatments.
Disproportionation of superoxide to peroxide and O<sub>2</sub> generates the highly reactive singlet O<sub>2</sub>, which needs be avoided for reversible metal–O<sub>2</sub> batteries.
Anatase nanotubes were synthesized by a hydrothermal route and characterized FE-SEM, TEM, XRD, N2 adsorption. The optimized synthesis permits careful control of the crystal structure morphology final product, thus giving highest phase morphological purities (>90%) any anatase reported to date. tested in lithium cells at various current rates their performances compared with bulk nanoparticulate anatase. Li uptake reaches 0.98 per formula unit. Moreover show better reversibility cyclability...
Abstract In the quest for a sustainable society, energy storage technology is destined to play central role in future landscape. Breakthroughs materials and methods involving resources are crucial protect humankind from most serious consequences of climate change. Rechargeable batteries all forms will be required follow path. Elements that eligible harmonically contribute development ecosystem fulfil demands high density include Na, K, Ca, Mg, Zn, Al. Numerous research efforts underway...
Abstract The composition, morphology, and evolution of the solid electrolyte interphase (SEI) formed on hard carbon (HC) electrodes upon cycling in sodium‐ion batteries are investigated. A microporous HC was prepared by pyrolysis d ‐(+)‐glucose at 1000 °C followed ball‐milling. were galvanostatically cycled room temperature half‐cells using an aprotic 1 m sodium bis(trifluoromethanesulfonyl)imide dissolved propylene carbonate with 3 wt % fluoroethylene additive. electrode/electrolyte...
This paper outlines a critical analysis of the currently available methodological framework for comprehensive and reliable interpretation impedance spectroscopy data aprotic lithium-based secondary batteries. Impedance is powerful experimental technique that can be used to assess batteries over range frequencies. However, in typical battery configurations, all components contribute response whole cell overlap many different responses often results complex curve not easily easy interpret....
The electrochemical behavior of a disordered carbon used as the anode in lithium battery has been tested. characteristics this carbon, especially its specific capacity and cycle life, are such that it is potentially unique, high-performance material for new types lithium-ion batteries. Figure shows versus number electrode cell.
Graphene oxide (GO) is well known as an excellent amphiphilic material due to its oxygen-containing functional groups and chemical tunability. By intercalation chemistry, organo-modified GO containing sulfonilic terminal were prepared used nanoadditive in Nafion polymer for the creation of hybrid exfoliated composites. The incorporation hydrophilic 2D platelike layers membranes expected induce advantages terms thermal stability mechanical barrier properties (limitation methanol crossover by...
Reducing the dimensions of electrode materials from micron to nanoscale can have a profound influence on their properties and hence performance electrochemical devices, e.g. Li-ion batteries, that employ such electrodes. TiO2(B) has received growing interest as possible anode for batteries in recent years. It offers possibility higher energy storage compared with commercialized Li4Ti5O12. Bulk, nanowire, nanotube, nanoparticle morphologies been prepared studied. However, date these not be...
In the research of new nanocomposite proton-conducting membranes, SnO2 ceramic powders with surface functionalization have been synthesized and adopted as additives in Nafion-based polymer systems. Different synthetic routes explored to obtain suitable, nanometer-sized sulphated tin oxide particles. Structural morphological characteristics, well bulk properties obtained powders, determined by means X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier Transform Infrared (FTIR)...
Abstract Sulfur electrodes confined in an inert carbon matrix show practical limitations and concerns related to low cathode density. As a result, these require large amount of electrolyte, normally three times more than the volume used commercial Li‐ion batteries. Herein, high‐energy high‐performance lithium–sulfur battery concept, designed achieve high capacity with minimum electrolyte is proposed. It based on deposition polysulfide species self‐standing highly conductive nanofiber...
The achievement of a new generation lithium-ion battery, suitable for continuously growing consumer electronic and sustainable electric vehicle markets, requires the development new, low-cost, highly performing materials. Herein, we propose efficient battery obtained by coupling exfoliated graphite/graphene nanosheets (EGNs) anode high-voltage, spinel-structure cathode. shows capacity exceeding 40% that ascribed to commercial graphite in lithium half-cell, at very high C-rate, due its...
Conversion reactions in lithium batteries have been proved for several classes of materials, such as oxides, fluorides, sulphides, nitrides, phosphides and recently hydrides. Metal hydrides can be electrochemically reduced to a highly conductive composite material consisting nanometric metallic particles dispersed an amorphous LiH matrix. Magnesium hydride undergoes reversible conversion reaction it has very good theoretical performances, i.e. specific capacity 2038 mA h g−1 working...
Single lithium-ion conducting polymer electrolytes are an innovative concept of solid-state (SPEs) for lithium-battery technology. In this work, a lithiated Nafion nanocomposite incorporating sulfonated graphene oxide (sGO-Li+), as well filler-free membrane, have been synthesized and characterized. Ionic conductivities lithium transference number, evaluated by electrochemical techniques after membrane-swelling in organic aprotic solvents (ethylene carbonate-propylene carbonate mixture),...
Abstract The adsorption of diclofenac on thermo-plasma expanded graphite (a commercial product) from water solutions was investigated. adsorbent material characterized by SEM, TEM, BET, Raman and X-ray diffraction analyses. Typical diffractogram spectrum graphitic material, dimension 24.02 nm as crystallite a surface area 47 m 2 g −1 were obtained. effect pH the capacity evaluated in range 1–7 mechanism described kinetic isothermal studies. Pseudo-second order Dubinin–Radushkevich models...