Zobrazeno 1 - 10 of 163 pro vyhledávání: '"Luís Mafra"'
1
Akademický článek
Detection of helical water flows in sub-nanometer channels
Autor: Pavel Zelenovskii, Márcio Soares, Carlos Bornes, Ildefonso Marin-Montesinos, Mariana Sardo, Svitlana Kopyl, Andrei Kholkin, Luís Mafra, Filipe Figueiredo
Publikováno v: Nature Communications, Vol 15, Iss 1, Pp 1-8 (2024)
Abstract Nanoscale flows of liquids can be revealed in various biological processes and underlie a wide range of nanofluidic applications. Though the integral characteristics of these systems, such as permeability and effective diffusion coefficient,
Externí odkaz: https://doaj.org/article/a2c19a4e080049219ef725fb68ba9b99
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3
Akademický článek
What’s the Madder? Characterization of Old Fashioned Alizarin/Aluminum Red Pigments Using Liquid and Solid-State NMR
Autor: Leonel C. Silva, Vanessa Otero, Maria J. Melo, Eurico J. Cabrita, Luís Mafra
Publikováno v: Colorants, Vol 2, Iss 4, Pp 601-617 (2023)
This work provides significant insight into the molecular structure of alizarin lake pigments used by artists in the past. To characterize two red powders, lakes 1 and 2, obtained by complexation of 1,2-dihydroxy anthraquinone (alizarin) with Al3+, a
Externí odkaz: https://doaj.org/article/835b697db83d44edbf021a819f424a4f
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5
Through-space hopping transport in an iodine-doped perylene-based metal–organic framework
Autor: Gonçalo Valente, María Esteve-Rochina, Ana Paracana, Antonio Rodríguez-Diéguez, Duane Choquesillo-Lazarte, Enrique Ortí, Joaquín Calbo, Marina Ilkaeva, Luís Mafra, Miguel A. Hernández-Rodríguez, João Rocha, Helena Alves, Manuel Souto
Publikováno v: Molecular Systems Design & Engineering. 7:1065-1072
Electrically conductive metal-organic frameworks (MOFs) have emerged in the past few years as promising materials towards applications in (opto)electronics, electrocatalysis and energy storage, among others. One of the most common strategies for the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd5ad0bc5e4eec83845841428045a712
https://doi.org/10.1039/d2me00108j
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7
Elucidating the Nature of the External Acid Sites of ZSM-5 Zeolites Using NMR Probe Molecules
Autor: Carlos Bornes, Dusan Stosic, Carlos F. G. C. Geraldes, Svetlana Mintova, João Rocha, Luís Mafra
The identification of acid and nonacid species at the external surface of zeolites remains a major challenge, in contrast to the extensively-studied internal acid sites. Here, it is shown that the synthesis of zeolite ZSM-5 samples with distinct part
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b50f3a4dd00de77e866c23e16b437c09
http://hdl.handle.net/10773/35937
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9
Exploring Molecular Dynamics of Adsorbed CO2 Species in Amine-Modified Porous Silica by Solid-State NMR Relaxation
Autor: Rita Fonseca, Ricardo Vieira, Mariana Sardo, Ildefonso Marin-Montesinos, Luís Mafra
Previous studies on CO2 adsorbents have mainly addressed the identification and quantification of adsorbed CO2 species in amine-modified porous materials. Investigation of molecular motion of CO2 species in confinement has not been explored in depth
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ca850dc162870a071cb001d65aafd13
http://hdl.handle.net/10773/35752
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