Results 41 to 50 of about 1,160,353 (158)

Acceptor‐Doped Cerium Oxides Enabling Metallic Nanocatalyst Exsolution for Hydrogen Production From Ammonia

open access: yesAngewandte Chemie, Volume 138, Issue 39, 21 September 2026.
Outstanding catalytic results for NH3 decomposition for H2 production were obtained with metallic Ru, Rh, and RuRh nanoparticle‐exsolved CeO2‐based catalysts. Significant lower amounts of available superficial metallic fractions were needed in comparison to conventional Ru‐impregnated materials.
Andrés López‐García   +8 more
wiley   +2 more sources

Reflexiones sobre la enseñanza de la ingeniería química

open access: yesEducación Química, 2018
La Sociedad Química de México tuvo la gentileza de hacerme una cordial invitación para presentar una conferencia dentro del marco del V Congreso de Química de América del Norte.
Alejandro Anaya Durand
doaj   +1 more source

Safeguarding the Photoluminescence of Silver Sulfide Nanocrystals in Biological Environments via Silica Shielding

open access: yesSmall, EarlyView.
Interactions with biomolecules can alter the photoluminescence of Ag2S nanocrystals, undermining near‐infrared imaging and thermometry. Incorporation into dendritic silica minimizes these interactions and preserves emission intensity, spectral response, and lifetime in plasma and whole blood. This shielding enables more reliable imaging and temperature
Alejandro Hernández Medel   +11 more
wiley   +1 more source

Estudio del equilibrio y cinética de adsorción de Cd(II), Ni(II) y Cr(VI) usando Quitosano y Quitosano modificado con cobre

open access: yesNexo, 2013
En este trabajo, se estudió el equilibrio y la cinética de adsorción de Cd(II), Ni(II) en quitosano y Cr(VI) en quitosano modificado con cobre. Para ello, soluciones de iones metálicos a diferentes concentraciones, fueron puestas en contacto con el ...
M. Benavente   +5 more
doaj   +1 more source

Reactive Red 195‐loaded halloysite for cotton dyeing and printing: Adsorption, characterisation and comparison with conventional exhaustion dyeing

open access: yesColoration Technology, EarlyView.
Abstract Textile wet processing generates dye‐containing effluents that require effective recovery and valorisation strategies. Halloysite nanoclay was used to capture Reactive Red 195 from a model aqueous solution, and the resulting dye‐loaded solid (REDHA7) was subsequently applied once to cotton by exhaustion dyeing and pigment‐type printing ...
Marta Perez‐Cabezas   +4 more
wiley   +1 more source

Videojuego serio como herramienta didáctica para la enseñanza de química en contexto agronómico

open access: yesEducación Química
Los estudiantes de Ingeniería Agronómica suelen mostrar escaso interés por materias de las ciencias básicas, como química. Frente a esta situación, los docentes buscan incorporar herramientas innovadoras que permitan despertar el entusiasmo y favorecer ...
Paula Andrea Ferreyra   +3 more
doaj   +1 more source

Assessment of Phytochemical Compounds and Antioxidant Potential of West Indian Avocado (Persea americana) Peel From Substandard‐Quality Fruits as a Valorisation Strategy

open access: yesPhytochemicals in Food and Medicine, Volume 1, Issue 4, December 2026.
West Indian avocado peels discarded because of low‐commercial‐quality were evaluated as a source of bioactive compounds. Avocado peels contained high levels of phenolic compounds and showed strong antioxidant capacity. These results support avocado peel valorisation within functional foods, circular and sustainable food systems.
Eduardo Castañeda‐Pérez   +4 more
wiley   +1 more source

Un punto de vista sobre la formación del ingeniero químico colombiano

open access: yesIngeniería e Investigación, 1985
El presente trabajo, que fue presentado ante el XIV Congreso Colombiano de Ingeniería Química, dentro del Simposio de Docencia e Investigación, pretende caracterizar los elementos inherentes al proceso de formación llevado a cabo convencionalmente en las
Daniel Bogoya Maldonado
doaj  

Propiedades mecánicas y productos de reacción de cementos base pumita-cal activados con sulfato de sodio (2015)

open access: yesEl Higo, 2020
Se evaluaron las propiedades mecánicas y se identificaron los productos de reacción de diversas pastas y morteros elaborados a base de pumita (P) y cal apagada (C) en presencia de sulfato de sodio (SS) como activador, expuestos a distintos niveles de ...
Léster Javier Espinoza Pérez   +2 more
doaj   +1 more source

Microeukaryotic Diversity and Habitat Structuring in a Desiccating Alkaline Maar Lake (Central Mexico)

open access: yesJournal of Eukaryotic Microbiology, Volume 73, Issue 6, November/December 2026.
ABSTRACT Microeukaryotes are important components of microbial food webs in saline and alkaline lakes, yet their diversity and distribution across distinct microhabitats remain poorly understood. We characterized microeukaryotic communities associated with microbialites, microbial mats, hypersaline waters, and sediments in the desiccating maar lake ...
Barbara Moguel   +5 more
wiley   +1 more source

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