Results 91 to 100 of about 115,739 (285)

Activity of alumina supported fe catalysts for N2O decomposition: Effects of the iron content and thermal treatment [PDF]

open access: yes, 2017
Indexación: Scopus.The activity of Fe2O3/Al2O3 catalysts prepared by impregnation of Al2O3 with different amounts of Fe and calcination temperatures (650 and 900 °C) in the direct N2O decomposition reaction was studied.
Aguila, G.   +4 more
core   +1 more source

High Charge Carrier Mobility in Non‐Conjugated 3D Covalent Organic Frameworks

open access: yesAdvanced Materials, EarlyView.
A non‐conjugated 3D COF constructed via boronate ester linkages from tetraphenylene and pyrene‐based monomers is reported, which exhibits a high charge carrier mobility of 14 ± 1 cm2 V−1 s−1. ABSTRACT π‐Conjugation, π–π stacking, and long‐range order play a central role in determining charge transport efficiency in organic materials.
Joaquín Almarza   +11 more
wiley   +1 more source

Novel Kinetic Resolution of Thiazolo-Benzimidazolines Using MAO Enzymes

open access: yesACS Omega, 2023
Valentina Villamil   +7 more
doaj   +1 more source

Sorption of apolar pesticides by units of benzoic acid propyl ester in cyclic phosphazene [PDF]

open access: yes, 2017
Indexación: Scopus.The effects of temperature, pH and agitation time (equilibrium) on the adsorption process of different pesticides on N3P3(OC6H4COOCH2CH2CH3)6 was studied.
Rivas, J., Valenzuela, M.L.
core  

Bio‐Inspired Hierarchical Nanoreactor With Hetero‐Coordinated Fe–P–Co Bridges for Whole‐Pathway‐Regulated Electrocatalytic Oxygen Reduction

open access: yesAdvanced Materials, EarlyView.
A bioinspired Co‐doped Fe2P on N‐doped carbon with a hierarchical eucalyptus‐like nanoarchitecture is engineered to regulate oxygen across the entire electrochemical pathway, achieving a half‐wave potential of 0.938 V vs. RHE, sustaining 373 h of discharge in Al‐air batteries, and delivering an energy density of 3487 Wh/kg.
Qiaoling Xu   +7 more
wiley   +1 more source

Membrane Semi‐Permeability and Ion Selectivity in Chemiosmosis: Open Systems Volume Dependence of Electrolyte Chemistry

open access: yesAdvanced Materials Interfaces, EarlyView.
Very small cellular compartments can break electroneutrality and harness proton gradients without active transport structures, whereas larger volumes cannot, underscoring why life's critical energy processes are confined in microscopic spaces. ABSTRACT The effect of pH changes in external ionic solutions on liposomes entrapping non‐permeable weak acid ...
Josep M. Ribó   +4 more
wiley   +1 more source

Quimica Orgánica Experimental

open access: yes, 1978
UCR::Vicerrectoría de Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela de ...
Constenla Umaña, Manuel Arturo   +1 more
openaire   +1 more source

Hiperheurística diseñada para un problema de localización y transporte público [PDF]

open access: yes, 2014
Se propone aquí el empleo de una hiperheurística para resolver un problema de localización y transporte. El trabajo presenta una clasificación en el campo de las hiperheurísticas, se establecen claramente los beneficios que proporcionan y se exponen las ...
Brignole, Nelida Beatriz   +2 more
core  

Non‐Functionalized Graphene as an Electrical Sensing Surface for Bacterial Detection

open access: yesAdvanced Materials Interfaces, EarlyView.
Pathogenic bacteria detection in food remains a major public health concern, driving the need for rapid, cost‐effective, and portable detection systems. This review focuses on the use of non‐functionalized graphene as an electrical sensing surface for bacterial detection, highlighting their unique properties, sensing mechanism, and current developments.
Jazmin Berthe   +4 more
wiley   +1 more source

Resúmenes de tesis

open access: yesRevista de Química, 1999
La sección no presenta resumen.
Revista de Química Revista de Química
doaj  

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