Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Heloísa Pimenta de Macedo"'
Autor:
Heloísa Pimenta de Macedo, Rodolfo Luíz Bezerra de Araújo Medeiros, Amanda Lucena de Medeiros, Ângelo Anderson Silva de Oliveira, Gilvan Pereira de Figueredo, Marcus Antônio de Freitas Melo, Dulce Maria de Araújo Melo
Publikováno v:
Materials Research, Vol 20, Iss suppl 2, Pp 29-33 (2017)
In this work, zinc aluminate spinel was prepared by two methods of directly synthesis (without calcination): microwave assisted combustion and hydrothermal method. The materials were characterized by X-ray diffraction (XRD), scanning electron microsc
Externí odkaz:
https://doaj.org/article/cb299e8f57dc4a3488b1c6ebaa156c87
Autor:
Rebecca Araújo Barros do Nascimento, Heloísa Pimenta de Macedo, Dulce M. A. Melo, Rodrigo César Santiago, Tomaz Rodrigues de Araújo, Rodolfo Luiz B. A. Medeiros, Juan Adánez
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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8 figures, 2 tables.
Chemical looping combustion (CLC) is one of the most efficient and advantageous CO2 capture technologies from an economic and energy point of view. An important key factor in this process is the oxygen carriers (OCs) used to
Chemical looping combustion (CLC) is one of the most efficient and advantageous CO2 capture technologies from an economic and energy point of view. An important key factor in this process is the oxygen carriers (OCs) used to
Autor:
L.B. Silva, Tiago R. Costa, RA Medeiros, L. M. P. Garcia, Lívia Cristina de Oliveira Felipe, Heloísa Pimenta de Macedo
Publikováno v:
Materials Science Forum. :435-440
This paper presents the application of Design of Experiments (DOE) to an alkaline treatment in mordenite zeolite, in order to identify the optimum settings of the variables (temperature and concentration of NaOH) that promote greater desilication. Sa
Autor:
Gilvan Pereira de Figueredo, Alexandre Fontes Melo de Carvalho, Rodolfo Luiz Bezerra de Araújo Medeiros, Francisco Marcelo Silva, Heloísa Pimenta de Macêdo, Marcus Antônio de Freitas Melo, Dulce Maria de Araújo Melo
Publikováno v:
Materials Research, Vol 20, Iss suppl 2, Pp 254-259 (2017)
Magnesium aluminate can be obtained by the methods: ceramic method, sol-gel, co-precipitation, hydrothermal and combustion. However, this work presents a simple and low cost route to obtain MgAl2O4 through the gelatin method. The main objective was t
Externí odkaz:
https://doaj.org/article/b11fbd4132aa4b79ac193439fa8e43bf