Výsledky vyhledávání - "Manuel Houmard"

Akademický článek

Structural, electrical, and wettability properties of self-supporting PVDF/TiO2/GO composite films obtained by a solvent evaporation route

Autor: Maria Luiza A. Almeida, Millena A. Fernandes, Hugo G. Palhares, Lucas M.C. Silva, Ludmila G. O. Xavier, Tulio Matencio, Liliane A. Silva, Luiz O. Faria, Vinícius G. de Castro, Tarcizo C. de Souza, Manuel Houmard, Eduardo H.M. Nunes

Publikováno v: REM: International Engineering Journal, Vol 77, Iss 2 (2024)

Abstract Polyvinylidene fluoride (PVDF) is a versatile and low-cost polymer with high biocompatibility, mechanical strength, chemical resistance, thermal stability, and ferroelectricity. This material has been widely used in many applications, rangin

Externí odkaz: https://doaj.org/article/522937dca9344313ab5f60032a77d076

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Akademický článek

Fabrication of Quasicrystalline Scaffolds From the Al-Cu-Fe System by Dynamic Freeze-Casting

Autor: Miguel L. Lapér, Eduardo H.M. Nunes, Manuel Houmard, Witor Wolf

Publikováno v: Materials Research, Vol 26 (2023)

In this study, scaffolds whose main phase is an icosahedral quasicrystal (i-QC) were prepared for the first time by dynamic freeze-casting. Two different metal powders were used here, namely pure aluminum and quasicrystalline particles from the Al-Cu

Externí odkaz: https://doaj.org/article/540827fd54084322ac2ad7c0a355005b

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Akademický článek

Synthesis, characterization, and use of nanocast LaMnO3 perovskites in the catalytic production of imine by the gas-phase oxidative coupling of benzyl alcohol to aniline

Autor: Himad Ahmed Alcamand, Henrique dos Santos Oliveira, José Gabriel Balena, Luiz Carlos de Oliveira, Pedro L. Gastelois, Manuel Houmard, Eduardo H.M. Nunes

Publikováno v: Catalysis Communications, Vol 175, Iss , Pp 106606- (2023)

We report here a green methodology for the synthesis of imine from a gas-phase oxidative coupling of benzyl alcohol to aniline in a continuous-flow system. These reactions were performed using LaMNO3 perovskites as heterogeneous catalysts. The cataly

Externí odkaz: https://doaj.org/article/be70028a95984cbeaa60fd4f5b5a649f

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Akademický článek

Facile sol–gel synthesis of silica sorbents for the removal of organic pollutants from aqueous media

Autor: Ana L.M. Gomes, Pedro H.M. Andrade, Hugo G. Palhares, Marcello R. Dumont, Daniel C.F. Soares, Christophe Volkringer, Manuel Houmard, Eduardo H.M. Nunes

Publikováno v: Journal of Materials Research and Technology, Vol 15, Iss , Pp 4580-4594 (2021)

In this work, silica-based adsorbents were prepared by a facile and straightforward sol–gel route. The adsorption capacity of the prepared materials was investigated using methylene blue (MB) and metamizole (sodium dipyrone – DIP) as reference po

Externí odkaz: https://doaj.org/article/3463c79f61c94714985d8e374e56b92a

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Akademický článek

Fabrication of porous samples from a high-temperature Cu–Al–Ni–Mn–Nb shape memory alloy by freeze-drying and partial sintering

Autor: Miguel L. Lapér, Raul Guimarães, Breno R. Barrioni, Philipe A.P. Silva, Manuel Houmard, Eric M. Mazzer, Eduardo H.M. Nunes

Publikováno v: Journal of Materials Research and Technology, Vol 9, Iss 3, Pp 3676-3685 (2020)

Shape memory alloys (SMAs) find important applications in many fields, including the biomedical, aerospace, and civil construction industries. The increasing interest in these materials arises from their mechanical properties such as shape memory eff

Externí odkaz: https://doaj.org/article/bf9e35789b6e4ddfaaedd44488d258bf

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Akademický článek

Effect of the carbon loading on the structural and photocatalytic properties of reduced graphene oxide-TiO2 nanocomposites prepared by hydrothermal synthesis

Autor: Bruno S. Gonçalves, Hugo G. Palhares, Tarcizo C.C. de Souza, Vinícius G. de Castro, Glaura G. Silva, Bruno C. Silva, Klaus Krambrock, Renata B. Soares, Vanessa F.C. Lins, Manuel Houmard, Eduardo H.M. Nunes

Publikováno v: Journal of Materials Research and Technology, Vol 8, Iss 6, Pp 6262-6274 (2019)

This work deals with the preparation of reduced graphene oxide (RGO)-TiO2 composites by a one-step hydrothermal treatment. The effect of the RGO loading on both the structural properties and photocatalytic behavior of RGO-TiO2 is deeply addressed her

Externí odkaz: https://doaj.org/article/f048a407ca98431fa8a0363325abb3e9

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