A5027024590- Hydrogen Storage and Materials
- Ammonia Synthesis and Nitrogen Reduction
- Superconductivity in MgB2 and Alloys
- Hybrid Renewable Energy Systems
- Spacecraft and Cryogenic Technologies
- Metallic Glasses and Amorphous Alloys
- Iron oxide chemistry and applications
- Magnesium Alloys: Properties and Applications
- Magnetic properties of thin films
- Graphene research and applications
- Carbon Nanotubes in Composites
- Aluminum Alloys Composites Properties
- Intermetallics and Advanced Alloy Properties
- Microstructure and mechanical properties
- Diamond and Carbon-based Materials Research
- Boron and Carbon Nanomaterials Research
- Magnesium Oxide Properties and Applications
- Material Dynamics and Properties
- Electrocatalysts for Energy Conversion
- ZnO doping and properties
- Silicon Nanostructures and Photoluminescence
- Quantum Dots Synthesis And Properties
- Aluminum Alloy Microstructure Properties
- Polymer Nanocomposites and Properties
- Nanowire Synthesis and Applications
National Agency for New Technologies, Energy and Sustainable Economic Development
2011-2023
ENEA Casaccia Research Centre
2023
Duke University
2018
Intelligence for Environment and Security (Italy)
1997
Istituto Officina dei Materiali
1995
Tecnologia Energia Ambiente Materiali (Italy)
1994
University of Perugia
1993
Institute of Structure of Matter
1990
Metal hydrides are known as a potential efficient, low-risk option for high-density hydrogen storage since the late 1970s. In this paper, present status and future perspectives of use metal discussed. Since early 1990s, interstitial base materials Ni – hydride rechargeable batteries. For storage, systems have been developed in 2010s [1] emergency or backup power units, i. e. stationary applications. With development completion first submarines U212 A series by HDW (now Thyssen Krupp Marine...
We propose a method of deforming bulk diffusion couple which allows separate control the effects on kinetics glass formation due to plastic flow and temperature increase. It is found that enhances, by several orders magnitude, interdiffusion coefficient (whose dependence described dual-regime Arrhenius behavior) increasing rate at load applied results in considerable enhancement process diffusion. All these observations are tentatively ascribed creation excess free volume flow.
Mg nanoparticles with metal-oxide core-shell morphology were synthesized by inert-gas condensation and decorated in situ Pd deposition. Transmission electron microscopy x-ray diffraction underline the formation of a noncontinuous layer clusters on top MgO shell. Even presence thick interlayer, modest (2 at. %) decoration deeply enhances hydrogen sorption properties: previously inert exhibit metal-hydride transformation fast kinetics gravimetric capacity above 5 wt %.
The hydrogen sorption kinetics of magnesium nanoparticles prepared by inert gas condensation and coated a oxide layer were investigated volumetric apparatus. metal-hydride transformation was studied transmission electron microscopy the both in as-prepared state after cycling. In small (≈35 nm) hydride formation proceeds one-dimensional growth controlled diffusion through hydride, while reverse to metal involves interface-controlled three-dimensional nuclei formed at constant rate. Large...
Abstract Polyvinylalcohol/graphite nanocomposites with graphite nanosheets have been prepared by a mechanical method based on grinding of powder, under low energy pure shearing milling, using water or KOH as lubricant. The use different lubricant concurs to obtain sheets that differently disperse in hydrophilic polymeric matrix. An improvement vapor permeability (up 12%), compared homopolymer, has observed. Keywords: Barrier propertiesGraphiteNanocompositesPolyvinyl alcohol
The effect of extended H2 sorption cycles on the structure and hydrogen storage performances MgH2 powders with 5 wt% Fe particle catalyst is reported. without have been ball milled under Argon, doped nanocomposite has cycled pressure up to a maximum 47 desorption absorption at 300 °C. After acceleration during first 10 cycles, kinetics behavior constant after cycling, in terms capacity rate sorption. major cycling morphology progressive extraction Mg from MgO shell surrounding powder...
Pyroelectric materials can harvest energy from naturally occurring ambient temperature changes, as well artificial notably industrial activity. Wurtzite- based have the advantage of being cheap, non-toxic, and offering excellent opto-electrical properties. Due to their non-centrosymmetric nature, all wurtzite crystals both piezoelectric pyroelectric Nanocrystalline ZnS, a room stable material, by contrast its bulk counterpart, is interesting due still not well-explored potential in...