Results 31 to 40 of about 1,688 (202)

Hydrophobic MFI‐Type Zeolites via Alkali‐Cation‐Induced Defect Healing: Implications for Adsorbent and Catalyst Design

open access: yesAdvanced Materials, EarlyView.
Sub‐stoichiometric amounts of Na+ or K+ enhance defect healing during Silicalite‐1 (MFI) and TS‐1 calcination by promoting Si–O–Si annealing and healing framework vacancies. The resulting defect‐free zeolites are more hydrophobic and show improved butanol/water separation and improved activity and selectivity in the epoxidation of 1‐hexene, offering a ...
Christos Kanteler   +14 more
wiley   +1 more source

Asesoramiento en vinculación y transferencia tecnológica a grupos de nanociencias y nanotecnologías de la Comisión Nacional de Energía Atómica.

open access: yes, 2017
Fil: Osycka, María de las M.. Universidad Nacional de Río Negro. Sede Andina; Argentina.El presente informe pretende ser un aporte al fortalecimiento de la articulación público-privada en los procesos de vinculación y transferencia tecnológica llevados ...
Osycka, María de las M.
core   +2 more sources

Gobernanza de las nanotecnologías

open access: yesArbor: Ciencia, Pensamiento y Cultura, 2005
Las nanotecnologias y los programas Converging Technologies (CT) plantean importantes desafíos a la gobernanza de la ciencia y la tecnología, al desarrollarse en un sistema transnacional de l+D+i con una pluralidad de agentes que compiten y cooperan ...
Javier Echeverría
doaj   +1 more source

Photocatalytic activity of Fe3O4–Fe2O3 particles supported on mordenite under visible light exposure for methylene blue degradation

open access: yesSN Applied Sciences, 2023
Dyes pollution is a serious environmental problem and heterogeneous catalysis has been proposed as a remediation method. In this study, a set of catalysts of synthetic mordenite with iron oxides was synthesized by a simple chemical co-precipitation ...
Raúl Avilés-Monreal   +3 more
doaj   +1 more source

2D Abrupt Nano‐Junctions Blending sp–sp2 Bonds on Atomically Precise Heterostructures

open access: yesAdvanced Materials, EarlyView.
A lateral heterostructure between atomically precise sp–sp2$^2$ metalated graphdiyne and sp2$^2$ graphene nanoribbons is realized by on‐surface synthesis and investigated by STM and DFT. The impact of on‐surface synthesis byproducts on covalent junction formation yield is unveiled.
Alice Cartoceti   +10 more
wiley   +1 more source

Volatile Memristive Devices With Tunable Temporal Dynamics For Event‐Based Sensing

open access: yesAdvanced Materials, EarlyView.
Tunable volatile memristive devices can serve various neural‐inspired tasks that require different time windows of information retention. The ionic‐based volatility of the presented Pt/a‐STO/TaOx/Ta device stack can be reproducibly and controllably tuned in multiple ways.
Dimitrios Spithouris   +7 more
wiley   +1 more source

A new family of copper-based MXenes

open access: yesScientific Reports, 2021
In this work, we demonstrate, through first-principles calculations, the existence of a new family of copper-based MXenes. These add up new structures to the previously reported universe and span the interest of such 2D materials for applications in ...
R. Ponce-Pérez   +3 more
doaj   +1 more source

Nanociencia y Nanotecnología... un mundo pequeño

open access: yesCuadernos del Centro de Estudios de Diseño y Comunicación, 2019
Este artículo resume el estado de desarrollo de la Nanociencia y la Nanotecnologíaen la actualidad. Los efectos en la educación. Los descubrimientos científicos más recientesen todas las áreas industriales aplicadas a la Nanotecnología. El desarrollo de materiales en laindustria textil con la utilización de nanotecnología y nano partículas que crean ...
openaire   +2 more sources

Nanociencia y nanotecnología(Nanoscience & Nanotechnology)- In Spanish

open access: yes, 2022
La nanotecnología ya está poniendo a disposición nuevos materiales que podrían revolucionar muchos ámbitos de la fabricación. Por ejemplo, los nanotubos y las nanopartículas, que son tubos y partículas de sólo unos átomos de diámetro, y los aerogeles, materiales compuestos por materiales muy ligeros y resistentes con notables propiedades aislantes ...
openaire   +2 more sources

Decoding Heptazine Architectures: From Molecular Association to Structural Insight

open access: yesChemistry – A European Journal, EarlyView.
A comprehensive study (NMR and theoretical) of three novel heptazine derivatives that self‐assemble into dimers has been conducted, highlighting their versatility as a platform for multifunctional supramolecular and optoelectronic materials. ABSTRACT Heptazine (Hpz) derivatives display remarkable supramolecular organization governed by noncovalent ...
Silvia del Moral   +5 more
wiley   +1 more source

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