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Akademický článek

The Impact of Physical Effort on the Gut Microbiota of Long-Distance Fliers

Autor: Elís Domingos Ferrari, Bruno César Miranda Oliveira, Hannah N. Creasey, Débora R. Romualdo da Silva, Alex Akira Nakamura, Katia D. Saraiva Bresciani, Giovanni Widmer

Publikováno v: Microorganisms, Vol 11, Iss 7, p 1766 (2023)

Flying pigeons (Columbia livia) are extensively studied for their physical endurance and superior sense of orientation. The extreme physical endurance of which these birds are capable creates a unique opportunity to investigate the possible impact of

Externí odkaz: https://doaj.org/article/f997d5de0d1e40b09dc2338abc352011

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Akademický článek

Selective Catalytic Reduction of NOx by CO over Cu(Fe)/SBA-15 Catalysts: Effects of the Metal Loading on the Catalytic Activity

Autor: Monique S. Souza, Antonio J. Martins, Jackson Anderson S. Ribeiro, Adriana Campos, Alcineia C. Oliveira, Raí F. Jucá, Gilberto D. Saraiva, Marco Antonio M. Torres, Enrique Rodríguez-Castellón, Rinaldo S. Araujo

Publikováno v: Catalysts, Vol 13, Iss 3, p 527 (2023)

Mesoporous Cu(Fe)/SBA-15 catalysts were prepared with distinct metal loadings of ca. 2–10 wt.%. A detailed set of characterizations using X-ray diffraction (XRD), electron paramagnetic resonance (EPR), transmission electron microscopy (TEM), scanni

Externí odkaz: https://doaj.org/article/3beab26317da488a88b081197d9992a2

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Akademický článek

Effect of Basic Promoters on Porous Supported Alumina Catalysts for Acetins Production

Autor: Rita de Cássia F. Bezerra, Gabriela Mota, Ruth Maria B. Vidal, Jose Vitor do Carmo, Gilberto D. Saraiva, Adriana Campos, Alcineia C. Oliveira, Rossano Lang, Larissa Otubo, José Jiménez Jiménez, Enrique Rodríguez-Castellón

Publikováno v: Catalysts, Vol 12, Iss 12, p 1616 (2022)

A facile strategy for the design of porous supports was obtained by modifying the sol-gel method followed by the wet impregnation technique. In this respect, herein, the acidity of the γ-Al2O3 phase was modulated by adding basic MgO, La2O3 or ZnO pr

Externí odkaz: https://doaj.org/article/025cf8fd85934c87b40d4d6a413a44ea

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Akademický článek

Antiferromagnet–Ferromagnet Transition in Fe1−xCuxNbO4

Autor: Diego S. Evaristo, Raí F. Jucá, João M. Soares, Rodolfo B. Silva, Gilberto D. Saraiva, Robert S. Matos, Nilson S. Ferreira, Marco Salerno, Marcelo A. Macêdo

Publikováno v: Materials, Vol 15, Iss 21, p 7424 (2022)

Iron niobates, pure and substituted with copper (Fe1−xCuxNbO4 with x = 0–0.15), were prepared by the solid-state method and characterized by X-ray diffraction, Raman spectroscopy, and magnetic measurements. The results of the structural character

Externí odkaz: https://doaj.org/article/d4f3e0cd9139499b85c8d8ba153139c5

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Akademický článek

Cr-Containing Rare-Earth Substituted Yttrium Iron Garnet Ferrites: Catalytic Properties in the Ethylbenzene Oxidation

Autor: José Vitor C. do Carmo, Rita de Cássia F. Bezerra, Y. Guerra, R. Peña-Garcia, Alcineia C. Oliveira, E. Padron-Hernandez, Gilberto D. Saraiva, João M. Soares, Antonio Joel R. Castro, Samuel Tehuacanaero-Cuapa, Elena Rodríguez-Aguado, Enrique Rodríguez-Castellón

Publikováno v: Catalysts, Vol 12, Iss 9, p 1033 (2022)

A series of the Cr-containing erbium substituted yttrium iron garnet ferrites (ECYIG) was synthesized with distinct Cr amounts, herein referred to as Y3(Er0.02Fe5Cr1−x)O12, where x refers to Cr amounts from 0 to 0.05. The catalytic performance of t

Externí odkaz: https://doaj.org/article/654a12339eaa42c3b6fc0ca2cf2f421e

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