Buscar
Mostrando ítems 1-10 de 52
Artículo
Understanding the active sites of boron nitride for CWPO: An experimental and computational approach
(Elsevier, 2021)
Hexagonal boron nitride (h-BN) has been explored as a catalyst for degrading persistent organic pollutants in wastewater by Catalytic Wet Peroxide Oxidation (CWPO). Herein, the superior activity of the h-BN on the ...
Artículo
Graphenes as Efficient Metal-Free Fenton Catalysts
(Wiley-Blackwell, 2015)
Reduced graphene oxide exhibits high activity as Fenton catalyst with HO. radical generation efficiency over 82 % and turnover numbers of 4540 and 15023 for phenol degradation and H2O2 consumption, respectively. These ...
Artículo
Influence of temperature on the interaction between Pd clusters and the TiO2 (110) surface
(American Physical Review, 2007-08-06)
The behavior of a Pd nanocluster on the rutile TiO2 (110) surface has been analyzed by extensive first principles molecular dynamics simulations between 100 K and 1073 K. Calculations predict a steep change in the morphological ...
Artículo
Molecular-dynamics simulations of premelting processes in Cr2O3
(American Physical Society, 1998)
Molecular-dynamics simulations of the (0001) surface Of Cr2O3 were carried out in the [300-2800 K] range of temperatures using a classical Pauling-type pair potential. The analysis of the structural data shows a strong ...
Artículo
When ruthenia met titania: achieving extraordinary catalytic activity at low temperature by nanostructuring of oxides
(Royal Society of Chemistry, 2015)
Nanostructured RuOx/TiO2(110) catalysts have a remarkable catalytic activity for CO oxidation at temperatures in the range of 350-375 K. On the other hand, the RuO2(110) surface has no activity. The state-of-the-art DFT ...
Artículo
Visible Light-Driven H2 Production over Highly Dispersed Ruthenia on Rutile TiO2 Nanorods
(American Chemical Society, 2016)
The immobilization of miniscule quantities of RuO2 (∼0.1%) onto one-dimensional (1D) TiO2 nanorods (NRs) allows H2 evolution from water under visible light irradiation. Rod-like rutile TiO2 structures, exposing preferentially ...
Artículo
Comprehensive Experimental and Theoretical Study of the CO + NO Reaction Catalyzed by Au/Ni Nanoparticles
(American Chemical Society, 2019)
The catalytic and structural properties of five different nanoparticle catalysts with varying Au/Ni composition were studied by six different methods, including in situ X-ray absorption spectroscopy and density functional ...
Artículo
N doping of TiO 2(110) Photoemission and density-functional studies
(AIP Publishing, 2006-09)
The electronic properties of N-doped rutile TiO2(110) have been investigated using synchrotron-based photoemission and density-functional calculations. The doping via N+2 ion bombardment leads to the implantation of N atoms ...
Artículo
Local character of magnetic coupling in ionic solids
(American Physical Society, 1999)
Magnetic interactions in ionic solids are studied using parameter-free methods designed to provide accurate energy differences associated with quantum states defining the Heisenberg constant J. For a series of ionic solids ...
Artículo
Mechanism of Cu deposition on the α−Al2O3 (0001) surface
(American Physical Society, 2005-01-14)
The growth mechanism of the Cu/α−Al2O3 (0001) interface is studied by first-principles molecular-dynamics simulations as a function of the transition-metal coverage (θ) and the temperature of the system. On the anhydrous ...