Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Ludovic, Dorkis"'
Publikováno v:
Heliyon, Vol 9, Iss 4, Pp e15561- (2023)
The biodiesel industry currently generates large amounts of crude glycerol that are not marketed, thus accumulating, and causing environmental problems. This study evaluates the catalytic potential of Colombian olivine, using glycerol steam reforming
Externí odkaz:
https://doaj.org/article/a4552b6598cd4db4a55e126346ac8ace
Publikováno v:
Revista Facultad de Ingeniería Universidad de Antioquia, Iss 94 (2020)
Self-cleaning activity of Portland cement pastes blended with nanoparticles of titanium oxynitride (TiO2−xNy ) was studied. Samples with various amounts of TiO2−xNy (1% and 3%) were evaluated under irradiation of UV and visible light, and with tw
Externí odkaz:
https://doaj.org/article/a28381c6fbfe4b3da92bc5d492242e87
Autor:
Elizabeth Flórez, Andrey A. Koverga, Ana Maria Gomez-Marin, Edson A. Ticianelli, Ludovic Dorkis
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
Modification of electronic and chemical properties of a material by the introduction of another element into its lattice is one of the most common methods for designing new catalysts for different applications. In this work the effect of modifying mo
Publikováno v:
Catalysis Letters. 150:3132-3148
Isomerization of α-pinene epoxide was carried out over a Colombian natural zeolite as potential geocatalyst with heulandite, chabazite and clipnotilolite as main crystallographic phases; the heulandite was identified as the active phase. Over synthe
Publikováno v:
Physical Chemistry Chemical Physics. 22:13666-13679
The adsorption of H, CO2, HCOO, O and CO on copper monolayers and submonolayers supported on hexagonal WC(0001) surfaces has been investigated. Calculations have been performed using density functional theory with the Perdew–Burke–Ernzerhof excha
Publikováno v:
SSRN Electronic Journal.
Autor:
Ludovic Dorkis, Marco-A. Márquez, Aída-Luz Villa, Julián E. Sánchez-Velandia, John-Freddy Gelves
Publikováno v:
Microporous and Mesoporous Materials. 287:114-123
A natural zeolite presents in rocks of volcanic origin located in Colombia was characterized and tested for the isomerization of β-pinene epoxide. The material was characterized by TPD-NH3, BET, SEM, FRX, FTIR of adsorption-desorption of pyridine, T
Publikováno v:
Revista Facultad de Ingeniería, Iss 94, Pp 87-96 (2019)
Self-cleaning activity of Portland cement pastes blended with nanoparticles of titanium oxynitride (TiO2−xNy ) was studied. Samples with various amounts of TiO2−xNy (1% and 3%) were evaluated under irradiation of UV and visible light, and with tw
Publikováno v:
The Journal of Physical Chemistry C. 123:8871-8883
In this work, a systematic study on the adsorption of atomic and molecular hydrogen and carbon oxides on cubic (001) and hexagonal (0001) WC surfaces by periodical density functional theory is repo...
Autor:
Lina María González, Marco Márquez, Ludovic Dorkis, Andrés Alvárez, Aída Luz Villa, J. F. Gelves
Publikováno v:
Catalysis Today. 320:112-122
The Selective Catalytic Reduction of NOx by ammonia (NH3–SCR of NOx) was studied over an iron Colombian natural zeolite (Nat-zeo) based geo-catalysts after several treatments (H-zeo-Fe3+ and H-zeo-Fe2+) under lean, dry and wet conditions. Nat-zeo f