Претраживање
Приказ резултата 11-20 од 51
DFT study of platinum and palladium overlayers on tungsten carbide: Structure and electrocatalytic activity toward hydrogen oxidation/evolution reaction
(International Journal of Hydrogen Energy, 2013)
Platinum and palladium overlayers on W- and C-terminated WC(0001) surface, at coverage ranging from 0.25 ML to 2 ML, have been studied using DFT approach. Strong adhesion of metal monolayers to the WC support, accompanied ...
Energy saving in electrolytic hydrogen production using Co-Cr activation - Part I
(International Journal of Hydrogen Energy, 2012)
The manuscript presents a report on the improved efficiency of alkaline electrolytic production of hydrogen by in situ adding directly into the electrolyte during the electrolytic process, cobalt and chrome based ionic ...
Nanostructured materials for solid-state hydrogen storage: A review of the achievement of COST Action MP1103
(International Journal of Hydrogen Energy, 2016)
In the framework of the European Cooperation in Science and Technology (COST) Action MP1103 Nanostructured Materials for Solid-State Hydrogen Storage were synthesized, characterized and modeled. This Action dealt with the ...
Specificity of the UPD of H to the structure of highly dispersed Pt on carbon support
(International Journal of Hydrogen Energy, 2007)
Home-made carbon cryogel synthesized by sol-gel polycondensation and freeze-drying is used as support for preparation of highly dispersed Pt catalyst that is made by a modified polyol synthesis method in an ethylene glycol ...
HfNi and its hydrides - First principles calculations
(International Journal of Hydrogen Energy, 2010)
Hydrogen induced modifications to the structural, electronic and bonding properties of HfNi are investigated by performing first principles calculations. The full-potential linearized augmented plane waves (FP-LAPW) code ...
Electronic structure and charge distribution topology of MgH2 doped with 3d transition metals
(International Journal of Hydrogen Energy, 2014)
Ab initio electronic structure calculations of the Mg15TMH32 (TM - transition metals - 6.25 at.%) systems for the entire 3d TM series have been performed using full-potential (linearized) augmented plane waves with addition ...
Investigation of surface and near-surface effects on hydrogen desorption kinetics of MgH2
(International Journal of Hydrogen Energy, 2014)
Desorption of hydrogen atoms from the (110) surface of rutile magnesium hydride (MgH2) was investigated using density functional theory (DFT) and pseudopotential method. System was represented by (110) (2x2) slab MgH2 ...
Changes in kinetic parameters of decomposition of MgH2 destabilized by irradiation with C2+ ions
(International Journal of Hydrogen Energy, 2013)
In attempt to improve desorption behaviour of MgH2, the influence of well-defined structural changes induced within a thin surface layer of MgH2 have been investigated. The defects were induced by 30 key C2+ ions irradiation ...
Hydrogen desorption properties of MgH2/LiAlH4 composites
(International Journal of Hydrogen Energy, 2013)
The hydrogen desorption properties of MgH2-LiAlH4 composites obtained by mechanical milling for different milling times have been investigated by Thermal Desorption Spectroscopy (TDS) and correlated to the sample microstructure ...
Hydrogen desorption properties of MgH2 catalysed with NaNH2
(International Journal of Hydrogen Energy, 2013)
To improve hydrogen desorption properties of MgH2, mechanical milling of MgH2 with low concentration (2 and 5%) of NaNH2 has been performed. Pre-milling of MgH2 for 10 h has been done and then six samples have been synthesised ...