Results 51 to 60 of about 6,762 (164)
Catalysts with varying palladium (Pd) loading supported on activated carbon were assessed for their effectiveness in the oxidative condensation of furfural. Furan‐2‐acrolein was the primary product, depending on the palladium content. Reusability tests showed a decline in the yield of furan‐2‐acrolein.
Rocío Maderuelo Solera +6 more
wiley +1 more source
En el área de Mérida aflora una serie carbonatada, atribuida al Cámbrico inferior, compuesta por calizas carbonosas con intercalaciones de niveles y nódulos de chert, en su tramo inferior, y una secuencia predominantemente dolomítica en el superior.
J. C. Fernández Caliani +2 more
doaj +1 more source
Synthesis of Au-Cu/SBA(Ti) catalysts for photocatalytic applications [PDF]
In this work, it has been synthesized several Au and Au-Cu alloy photocatalysts supported on two different mesoporous supports: a non-commercial SBA-15 and a post-synthesis TiO2 modified SBA-15 (TiSBA-15), with which a high dispersion of TiO2 species ...
Barroso Martín, Isabel
core
The electronic modulation of Nb‐doped Co3O4 catalyst showcases enhanced activity and extended stability for OER in both alkaline (1M KOH) and acidic (0.5M H2SO4) electrolytes. The higher activity emanated from the synergistic effect between the Nb5+ dopant and Co3O4.
Kassa Belay Ibrahim +7 more
wiley +1 more source
Clinkering and early age hydration characterization of Belite-Alite Calcium Sulfoaluminate (BACSA) cements [PDF]
In this work, four BACSA clinkers with different compositions (belite ~ 70-55 wt %, alite ~ 10-15 wt % and ye’elimite ~ 10-15 wt %) were synthesized (at laboratory scale).
García-Aranda, Miguel Ángel +5 more
core
Climate change and the impact of water limitations on rainfed crops are a major concern in Mediterranean countries. Conservation agriculture promotes less aggressive tillage systems, including reduced tillage (RT) and no tillage (NT), that confer agrosystems a higher stability against environmental changes compared to the traditional tillage (TT ...
Paula Madejón +4 more
wiley +1 more source
Se describen las características geoquímicas, mineralógicas y petrográficas de los materiales pizarrosos de un sector de la Faja Pirítica y, en base a estos datos, se discuten sus condiciones de formación y evolución durante el metamorfismo.
J. C. Fernández-Caliani, E. Galán
doaj +1 more source
Structural study of the local order in ammonia-modulated FE(II) hydroxyphosphonoacetate proton conductors [PDF]
Layered Fe(II) carboxiphosphonate, Fe-HPAA·2H2O, is a crystalline multifunctional coordination polymer exhibiting properties as photocatalyst and proton conductor.
Bazaga-García, Montse +5 more
core
MODELAMIENTO DE LA ESTRUCTURA DEL ALUMINIO LIQUIDO MEDIANTE EL METODO DE DINAMICA MOLECULAR
Usamos el método de Dinámica Molecular (DM) para obtener una descripción atomística de los procesos de difusión y estructura del aluminio líquido en un ámplio rango de temperaturas (900K - 2600K).
Justo A. Rojas Tapia +2 more
doaj +1 more source
An efficient and sustainable biodiesel production in a mechanochemical pilot reactor under heterogeneous catalysis [PDF]
Fatty acid methyl esters (FAME) produced from vegetable oils or animal fats by transesterification, or from the esterification of fatty acids, with methanol, is labeled as ‘‘Biodiesel”.
Halloumi, Samy +5 more
core

