Πλοήγηση ανά Θέμα "Chemistry, Physical"
Αποτελέσματα 1-20 από 75
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Adjustable Hyperthermia Response of Self-Assembled Ferromagnetic Fe-MgO Core-Shell Nanoparticles by Tuning Dipole-Dipole Interactions
(2012)The Fe-MgO core-shell morphology is proposed within the single-domain nanoparticle regime as an enhanced magnetically driven hyperthermia carrier. The combinatory use of metallic iron as a core material together with the ... -
Adsorption and oxidation of methanol and ethanol on the surface of metallic and ceramic catalysts
(2003)A short review of results obtained in latest infrared and Raman studies, with special reference to in situ measurements and first-principles quantum-mechanical investigations of adsorption and oxidation of alcohol molecules ... -
Bi4Cu0.2V1.8O11-delta based membrane electrochemical reactors for propane oxidation at moderate temperatures
(2005)Bi4Cu0.2V1.8O11-delta membrane material was synthesized by following the solid-state method. The oxygen permeation flux at 673 K was found to be 0.5 ml/cm(2) by the use of an external electric power source. The oxidation ... -
Carbon-supported PdSn and Pd3Sn2 anodes for glucose electrooxidation in alkaline media
(2014)PdSn (20 wt.%) and Pd3Sn2 (20 wt.%) nanoparticles supported on Vulcan XC-72 carbon powders are prepared by a modified microwave-assisted polyol method and studied for the reaction of glucose electrooxidation in alkaline ... -
Catalytic and Electrocatalytic Activation of Methane over Manganese Oxides Deposited on YSZ
(1997)The catalytic and the electrocatalytic behavior of MnO(x) oxides deposited on Yttria Stabilized Zirconia (YSZ) in the form of thin porous films, was studied during the reaction of methane activation at high methane to ... -
Catalytic and electrocatalytic oxidation of carbon monoxide on a Fe electrode in a solid electrolyte cell
(2003)The catalytic oxidation of carbon monoxide on Fe catalyst was studied at 300-500degreesC and atmospheric total pressure. The reaction was studied under both open- and closed-circuit operation in an yttria-stabilized zirconia ... -
Catalytic and electrocatalytic oxidation of ethanol over a La0.6Sr0.4Co0.8Fe0.2O3 perovskite-type catalyst
(2000)The catalytic and electrocatalytic behavior of the perovskite-type La0.6Sr0.4Co0.8Fe0.2O3 catalyst was investigated during ethanol oxidation. Experiments were carried out at atmospheric pressure in a fully yttria-stabilized ... -
Catalytic Behavior of La(0.6)Sr(0.4)Co(0.8)Fe(0.2)O(3) Perovskite-Type Oxide Thin Films Deposited on YSZ During the Reaction of Ethanol Oxidation
(1998)The perovskite-type oxide La(0.6)Sr(0.4)Co(0.8)Fe(0.2)O(3) was studied as an ethanol oxidation catalyst-anode as a probable candidate for future application in Solid Oxide Fuel Cells (SOFCs). The investigation was carried ... -
Cation adatom diffusion on the NiO(001) surface by molecular dynamics simulation
(2001)We present results concerning the diffusion of Ni2+ adatom on the (001) surface of NiO obtained by molecular dynamics simulations based on a rigid ion potential model. A wide temperature region was covered ranging from ... -
Cation vacancy diffusion on the NiO(001) surface by molecular dynamics simulations
(1999)We present results concerning the cation vacancy diffusion mechanisms occurring on the NiO(001) surface along with their corresponding migration energies. Using a rigid ion potential and molecular dynamics simulations we ... -
CeO2 based materials doped with lanthanides for applications in intermediate temperature electrochemical devices
(2011)The present work aims at the investigation of the influence of different dopants' ionic radius and concentration on the lattice parameters and the density of Ce(1-x)Ln(x)O(2-delta) (x = 0-0.20; Ln = La, Nd, Sm, Eu, Gd, Dy, ... -
Ceria promoted Pd/C catalysts for glucose electrooxidation in alkaline media
(2015)Carbon support materials are modified by CeO2 through a microwave decomposition method, and then CeO2-C supported Pd catalysts are synthesized by a pulse microwave assisted polyol method. The content of CeO2 is appropriately ... -
Charge transfer in mixed proton, oxygen ion and electron solid oxide conductor
(2005)Analysis of the equivalent scheme of the mixed proton-oxygen ion-electron conductor (MPOEC) allowed to obtain relationships between parameters of the membrane (total conductivity and transfer numbers) and parameters of the ... -
Conductivity of Gd-doped BaCeO3 protonic conductor in H-2-H2O-O-2 atmospheres
(2014)In the present investigation, a radically new and simple method of evaluation of the proton conductivity is proposed. This method is based on the conductivity measurement of ceramic materials depending on the oxygen partial ... -
Data Driven, Predictive Molecular Dynamics for Nanoscale Flow Simulations under Uncertainty
(2013)For over five decades, molecular dynamics (MD) simulations have helped to elucidate critical mechanisms in a broad range of physiological systems and technological innovations. MD simulations are synergetic with experiments, ... -
Decomposition of NH3 on Pd and Ir - Comparison with Pt and Rh
(1997)The unimolecular decompositions of NH3 on polycrystalline wires and foils of Pd and Ir are examined and compared with the corresponding ones on Pt and Ph. The reactions were carried out in a differential flow reactor, at ... -
Decomposition of NO on Pd and Ir. Comparison with Pt and Rh
(1996)The unimolecular decomposition of NO has been examined on Pd and Ir and they are compared with the corresponding reactions on Pt and Rh. The runs were carried out in a differential now reactor, at pressures from 0.01 to 5 ... -
Diagnostics of the ions produced by laser ablation of TiC and TIB2
(1998)The composition and the kinetics of the plume produced during the pulsed laser deposition of TiC and TiB2 coatings on metal substrates was studied under film growth conditions. Mass analysis of ions of the ejected material ... -
Direct ethanol fuel cells: The effect of the cell discharge current on the products distribution
(2010)In the present work the results of the continuous and on-line product analysis during a Direct Ethanol Polymer Electrolyte Membrane Fuel Cell operation (DE-PEMFC) are presented. The effect of both cell discharge current ... -
Direct ethanol PEM fuel cells: The case of platinum based anodes
(2005)PtSn/C catalysts were prepared by the direct decoration of Pt/C with Sn through a modified poly process. XRD results showed there existed obvious SnO2 in this catalyst, different from the PtSn/C prepared by co-precipitation, ...