A5039900820- Hydrogen Storage and Materials
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Nuclear physics research studies
- Mass Spectrometry Techniques and Applications
- Advanced Battery Technologies Research
- Ammonia Synthesis and Nitrogen Reduction
- Analytical Chemistry and Chromatography
- Aluminum Alloys Composites Properties
- Nuclear Physics and Applications
- Aluminum Alloy Microstructure Properties
- Inorganic Chemistry and Materials
- Hybrid Renewable Energy Systems
- Electrocatalysts for Energy Conversion
- Metal and Thin Film Mechanics
- Supercapacitor Materials and Fabrication
- Nuclear Materials and Properties
- Magnesium Alloys: Properties and Applications
- Hydrogen embrittlement and corrosion behaviors in metals
- Diamond and Carbon-based Materials Research
- Muon and positron interactions and applications
- Analytical chemistry methods development
- Advanced Chemical Sensor Technologies
- Recycling and Waste Management Techniques
- Atomic and Molecular Physics
Institute of Physics of the Slovak Academy of Sciences
2017-2025
Slovak Academy of Sciences
2017-2025
General Motors (United States)
2014-2024
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro
2022-2024
Harley-Davidson (United States)
2018-2024
Materials Systems (United States)
2002-2023
General Motors (Poland)
2001-2023
Istituto Nazionale di Fisica Nucleare
2023
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
2022
Waters (United States)
1991-2014
The coupled system LiBH4 + 1/2MgH2 ↔ LiH 1/2MgB2 2H2 demonstrates improved hydrogen cycling thermodynamics compared to either or MgH2 alone; in effect, formation of MgB2 "destabilizes" the decomposition LiBH4. Here we establish thermodynamically and kinetically stable region H2 pressure−temperature phase diagram for reversible storage TiCl3-catalyzed 1/2MgH2. Although was favored at elevated temperature, it more favorable decompose independently a two-step dehydrogenation starting with Mg...
We recently reported the synthesis of a new quaternary hydride in lithium-boron-nitrogen-hydrogen phase diagram with approximate composition LiB0.33N0.67H2.67 having theoretical hydrogen content 11.9 wt %. This compound forms by reaction appropriate amounts lithium amide (LiNH2) and borohydride (LiBH4) releases greater than 10 % when heated. A small amount ammonia, 2-3 mol generated gas, is also released. now report study ammonia release from series reactant mixtures (LiNH2)x(LiBH4)1-x,...
The impact of lithium bis(oxalate)borate (LiBOB) electrolyte additive on the performance full lithium-ion cells pairing high-voltage spinel cathode with graphite anode was systematically investigated. Adding 1 wt % LiBOB to significantly improved cycle life and Coulombic efficiency full-cells at 30 45 °C. As preferentially oxidized reduced compared LiBOB-free during cycling, their relative contributions capacity retention in gauged by fresh LiBOB-treated electrodes various combinations....
In this work, we demonstrate the utility of ultra performance liquid chromatography−atmospheric pressure photoionization-tandem mass spectrometry (UPLC−APPI-MS/MS) for high-sensitivity and high-throughput analysis United States Environmental Protection Agency (U.S. EPA) 16 priority pollutants polycyclic aromatic hydrocarbons (PAHs). Analyses were performed on a Waters Acquity-TQD equipped with Syagen's PhotoMate APPI source. All PAHs analyzed column in approximately 3.5 min excellent...
X-ray data on single crystals of the quaternary metal hydride near composition LiB(0.33)N(0.67)H(2.67), previously identified as "Li3BN2H8", reveal that its true is Li4BN3H10. The structure has body-centered-cubic symmetry [space group I2(1)3, cell parameter a = 10.679(1)-10.672(1) Angstroms] and contains an ordered arrangement BH4- NH2- anions in molar ratio 1:3. borohydride anion almost ideal tetrahedral geometry (angleH-B-H approximately 108-114 degrees), while amide nearly bond angle...
Abstract Organo‐clay polymer nanocomposites offer improved material properties at very low filler loadings making them of immediate interest for application in body panels, claddings, and instrument panels. This improvement requires that the organo‐clay be well dispersed if not completely exfoliated. Conventionally, dispersion exfoliation is evaluated using transmission electron microscopy (TEM) X‐ray diffraction (XRD). Although both TEM XRD data were found to correlate with flexural modulus...
A carbon-supported, dealloyed platinum-copper (Pt-Cu) oxygen reduction catalyst was prepared using a multi-step synthetic procedure. Material produced at each step characterized high angle annular dark field scanning transmission electron microscopy (HAADF-STEM), energy loss spectroscopy (EELS) mapping, x-ray absorption (XAS), diffraction (XRD), and cyclic voltammetry (CV), its reaction (ORR) activity measured by thin-film rotating disk electrode (TF-RDE) technique. The initial step,...
Abstract Diesel oxidation catalysts (DOCs), which decrease the amount of harmful carbon monoxide (CO), nitrogen oxide (NO), and hydrocarbon (HC) emissions in engine exhaust, typically utilize Pt Pd active phase. There is universal agreement that addition improves both catalytic performance durability catalysts. However, mechanisms by are less clear. Because these operate under oxidizing conditions, it important to understand their working state. Herein, we report microstructure PtPd aged...
Abstract The $$\upalpha $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>α</mml:mi> </mml:math> -decay fine structure of $$^{179}$$ <mml:mmultiscripts> <mml:mrow/> <mml:mn>179</mml:mn> </mml:mmultiscripts> Hg and $$^{177}$$ <mml:mn>177</mml:mn> Au was studied by means decay spectroscopy. Two experiments were performed at the Accelerator Laboratory University Jyväskylä (JYFL), Finland, utilizing recoil separator RITU a digital data acquisition system. heavy-ion induced...