Výsledky vyhledávání - "Himad A. Alcamand"

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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Structural, mechanical, and in vitro characterization of freeze-cast scaffolds prepared using a sol-gel-derived bioactive glass from the SiO2–CaO–Na2O–P2O5–K2O–MgO system

Autor: Francisco B. Fantecelle, Diogo M.M. dos Santos, Breno R. Barrioni, Marivalda M. Pereira, Himad A. Alcamand, Miguel L. Lapér, Manuel Houmard, Eduardo H.M. Nunes

Publikováno v: Ceramics International. 49:2183-2193

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::75858f8218d2d1145959e98eefa9e018
https://doi.org/10.1016/j.ceramint.2022.09.185

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Akademický článek

On The Mechanical Behavior of Metakaolin Based Geopolymers Under Elevated Temperatures

Autor: Ana Carolina Constâncio Trindade, Flávio de Andrade Silva, Himad Ahmed Alcamand, Paulo Henrique Ribeiro Borges

Publikováno v: Materials Research, Vol 20, Iss suppl 2, Pp 265-272 (2017)

Geopolymers may be described as solid and stable synthesized aluminosilicate materials, whose properties are generally believed to provide a superior durability behavior. The work in hand presents the results of an experimental investigation on the t

Externí odkaz: https://doaj.org/article/4cbda4b3dd7d4dbc9e78d320e1eb8966

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Structural and photocatalytic properties of sol–gel-derived TiO2 samples prepared by conventional and hydrothermal methods using a low amount of water

Autor: Maira Marra, Marcello Dumont, Hugo G. Palhares, Himad A. Alcamand, Manuel Houmard, Eduardo H. M. Nunes

Publikováno v: Journal of Sol-Gel Science and Technology. 103:97-107

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0c246396aa4c5404675f3f639477fbe0
https://doi.org/10.1007/s10971-022-05780-6

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Influence of the Alcoholic Solvent and Gelation Temperature on the Structural and Water Vapor Adsorption Properties of Silica Adsorbents Synthesized by Sol-Gel Method

Autor: Raquel L. Mageste Fonseca, Diana Sampaio, Thauane F. Mayrink, Himad Ahmed Alcamand, Hugo G. Palhares, Eduardo H. M. Nunes, Manuel Houmard

Publikováno v: SSRN Electronic Journal.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::510cbacb0ec9648003a04b59816a7f52
https://doi.org/10.2139/ssrn.4116425

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Efficient and Environmentally Safe Synthesis of Imine in a Continuous-Flow Reactor Using Nanocast Lamno3 Perovskites as Catalysts

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

Publikováno v: SSRN Electronic Journal.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25441a728092bcf1c8425c112140b136
https://doi.org/10.2139/ssrn.4247758

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Influence of the alcoholic solvent and gelation temperature on the structural and water vapor adsorption properties of silica adsorbents synthesized by sol-gel method without catalyst

Autor: Raquel L. Mageste Fonseca, Diana Sampaio, Thauane F. Mayrink, Himad Ahmed Alcamand, Hugo G. Palhares, Eduardo H.M. Nunes, Manuel Houmard

Publikováno v: Microporous and Mesoporous Materials. 342:112114

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3c5b3c6dd409299422e988a42ab3a27d
https://doi.org/10.1016/j.micromeso.2022.112114

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The effect of matrix composition and calcium content on the sulfate durability of metakaolin and metakaolin/slag alkali-activated mortars

Autor: Ana Carolina Constâncio Trindade, Flávio de Andrade Silva, Paulo H. R. Borges, Himad A. Alcamand

Publikováno v: Ceramics International. 44:5037-5044

The work in hand presents the results of an experimental research on the effect of different precursors (binders) used in alkali-activated materials (AMM) and its composition (i.e. SiO 2 /Al 2 O 3 molar ratio) on their sulfate durability. A reference

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::618010b5a78694f22ff6cfbe6e3d902a
https://doi.org/10.1016/j.ceramint.2017.12.102

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Performance of blended metakaolin/blastfurnace slag alkali-activated mortars

Autor: Nemkumar Banthia, Himad A. Alcamand, Eduardo Nunes, Wander L. Vasconcelos, Paulo H. R. Borges

Publikováno v: Cement and Concrete Composites. 71:42-52

This paper studies the effect of silicate content on the mechanical and durability-related properties of metakaolin (MK) and metakaolin/blastfurnace slag (BFS) alkaline activated mortars. A reference mortar based on the alkaline activated MK was comp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::261483f2c21c03e65cf6e9f9e110fce2
https://doi.org/10.1016/j.cemconcomp.2016.04.008

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