Results 71 to 80 of about 117,030 (304)

COFs on MOFs: Layer‐by‐Layer Synthesis of MOF@COF Nanoparticles with Synergistic Adsorption

open access: yesAdvanced Materials, EarlyView.
A layer‐by‐layer strategy enables the growth of crystalline covalent organic framework (COF) shells on metal–organic framework nanoparticles, creating core–shell structures with tunable porosity. Ordered interstitial mesopores are formed during shell growth, which are connected with the COF's intrinsic micropores, thereby enhancing water sorption. This
Ana Guillem‐Navajas   +11 more
wiley   +1 more source

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

In Situ Amine Formation to Modulate MOF‐Derived PdIn N‐Doped Carbon Catalysts

open access: yesAdvanced Materials, EarlyView.
An amine‐assisted approach converts PdIn‐MOF into PdIn intermetallic nanoparticles embedded in N‐doped carbon. In situ‐generated amines trigger early Pd nucleation, producing smaller PdIn domains than direct pyrolysis. Amine sterics and basicity tune composition and particle size, while solvent and amine co‐determine textural features.
Gonzalo Egea   +9 more
wiley   +1 more source

Diversity and efficacy of insect sampling methods in an urban tropical dry forest of the Colombian Caribbean [PDF]

open access: yesPeerJ
Tropical dry forests (TDFs) are among the most threatened ecosystems in Colombia and globally. Characterized by distinct dry and wet seasons, TDFs support a rich diversity of flora and fauna and offer crucial ecosystem services, despite facing ...
Rodrigo Sarmiento-Garcés   +2 more
doaj   +2 more sources

Understanding organic materials performance in field-effect transistors [PDF]

open access: yes, 2017
Comunicación oralIn the last years, much of our effort has been devoted to the search and study of new high-mobility semiconductors for organic thin film transistors.
Arrechea-Marcos, Iratxe   +4 more
core  

Surface characterization and properties of ordered arrays of CeO2 nanoparticles embedded in thin layers of SiO2 [PDF]

open access: yes, 2005
We demonstrated the surface composite character down to the nanometer scale of SiO2-CeO2 composite high surface area materials, prepared using 5 nm colloidal CeO2 nanoparticle building blocks.
Airiau, Marc   +7 more
core   +3 more sources

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

Polyphenolic compounds and anthocyanin content of Prosopis nigra and Prosopis alba pods flour and their antioxidant and anti-inflammatory capacities [PDF]

open access: yes, 2014
The aim of this study was to determine the content of total free and bound phenolic, free and bound flavonoid, anthocyanin, alkaloid and the profiles of polyphenols of the edible ripe pods of Prosopis alba and Prosopis nigra. P.
Abdel-Aal   +52 more
core   +2 more sources

Pulsed Laser‐Assisted Phase Engineering of Multimetallic Colloidal Nanocrystals With Complex Compositions

open access: yesAdvanced Materials, EarlyView.
The engineering of colloidal nanocrystals with complex compositions has emerged as a highly active area of research within nanomaterials science. This review covers key aspects of colloidal solid‐solution nanocrystal formation using pulsed laser irradiation.
Marina T. Candela   +4 more
wiley   +1 more source

Resúmenes de tesis

open access: yesRevista de Química, 1998
No presenta resumen.
Revista de Química Revista de Química
doaj  

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