Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Antonio O. S. Silva"'
Autor:
Julyane R. S. Solano, Raul C. S. Nascimento, David C. M. Silva, Diogo P. S. Silva, Lenivaldo V. Sousa, Bruno J. B. Silva, Soraya L. Alencar, Maritza M. Urbina, Paulo H. L. Quintela, Antonio O. S. Silva
Publikováno v:
Materials Research, Vol 24, Iss 5 (2021)
Abstract The synthesis of SSZ-13 was studied by evaluating the influence of two types of crystallization seeds with CHA structure (S1 seeds prepared in fluoride medium and S2 seeds by the conversion of zeolite Y), SiO2/Al2O3 (28, 40, 60 and 100) and
Externí odkaz:
https://doaj.org/article/0a079c787df548fb88b17112a366f6e8
Autor:
Renilson O. Mapele, Antonio O. S. Silva, Marcelo J. B. Souza, Anne M. G. Pedrosa, Ana C. F. Coriolano, Glauber J. T. Fernandes, Valter J. Fernandes, Antonio S. Araujo
Publikováno v:
Applied Sciences, Vol 11, Iss 14, p 6544 (2021)
The hydrothermal synthesis of aluminophosphate molecular sieve type AlPO4-11 was processed from chemicals containing psueudobohemite, 85% phosphoric acid, water, and di-isopropylamine as templating agent. The crystallization of the samples was studie
Externí odkaz:
https://doaj.org/article/fa39983e5b4c458f83eed87c016f6389
Autor:
C. M. B. M. Barbosa, Juan Felipe González, José Pacheco, Santiago Arias, Antonio O. S. Silva, Lenivaldo V. Sousa, Roger Fréty
Publikováno v:
Catalysis Today. 381:181-191
Residual lipids with high fatty acid content represent an important source of raw material for renewable biofuels. They are not suitable for the production of biodiesel via alkaline transesterification but can be converted to biodiesel via esterifica
Autor:
Diogo Pimentel De Sá Da Silva, Alef T. Santos, Bruno J. B. Silva, Roberta K. B. C. Cavalcanti, Paulo H. L. Quintela, Julyane R. S. Solano, Antonio O. S. Silva, Thaís R. S. Ribeiro
Publikováno v:
Journal of Sol-Gel Science and Technology. 100:360-372
This study evaluated the CO2 adsorption capacity of microporous and hierarchical LTA zeolites at different temperatures (10, 20, 30, 40, and 50 °C) and atmospheric pressure. Monosodium glutamate was employed as a mesoporosity agent, which unlike oth
Autor:
Bruno J. B. Silva, Ana C. S. Melo, Paulo H. L. Quintela, Lais R.A. Sarmento, Deidiane S. Silva, Soraya L. Alencar, Antonio O. S. Silva, Lenivaldo V. Sousa
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 147:3161-3170
The effects of deactivation by coke deposition after the n-heptane cracking reaction were evaluated on crystallinity, acidity and activation energies for the coke thermal oxidation process in microporous and hierarchical ZSM-23 zeolites. The fresh an
Autor:
Anne Michelle Garrido Pedrosa, Antonio O. S. Silva, Marcelo J. B. Souza, Antonio S. Araujo, Tiago Gomes dos Santos
Publikováno v:
Journal of Porous Materials. 28:919-928
Catalysts of AlMCM-48 with different Si/Al molar rations were synthesized by modified hydrothermal method with respect to previous works. As a consequence, the materials showed different porous structures making them of high adsorption capacities and
Autor:
Geovânia Cordeiro de Assis, Antonio O. S. Silva, Simoni M.P. Meneghetti, Tiago Gomes dos Santos
Publikováno v:
Revista Virtual de Química. 13:480-493
No Brasil e no mundo, existem varios desafios para o fortalecimento e a ampliacao do uso de fontes renovaveis para obtencao de insumos quimicos e de energia, visando consolidar um segmento industrial sustentavel. Nesse contexto, a biomassa lignocelul
Autor:
Bruno J. B. Silva, Paulo H. L. Quintela, Julyane R. S. Solano, Lenivaldo V. Sousa, Diogo Pimentel De Sá Da Silva, Antonio O. S. Silva
Publikováno v:
Journal of Sol-Gel Science and Technology. 97:382-392
A modification of the MCM-41 mesoporous materials through carbon deposition followed by acid washing has been studied for application in carbon dioxide adsorption. Two routes were used to prepare pure silica (Si-MCM-41) and Al-containing (Al-MCM-41)
Autor:
Diogo Pimentel De Sá Da Silva, Bruno J. B. Silva, Lenivaldo V. Sousa, Paulo H. L. Quintela, A. C. S. Melo, Soraya L. Alencar, Antonio O. S. Silva
Publikováno v:
Cerâmica, Vol 66, Iss 380, Pp 379-385 (2020)
Cerâmica v.66 n.380 2020
Cerâmica (São Paulo. Online)
Universidade de São Paulo (USP)
instacron:USP
Cerâmica v.66 n.380 2020
Cerâmica (São Paulo. Online)
Universidade de São Paulo (USP)
instacron:USP
The thermo-catalytic degradation of polyethylene (PE) and ultra-high molecular weight polyethylene (UHMWPE) was studied in the presence of zeolites (ZSM-5, ZSM-22, and ferrierite) with different pore systems and textural properties. The zeolites were
Publikováno v:
The Journal of Engineering and Exact Sciences; Vol. 6 No. 3 (2020); 0200-0206
The Journal of Engineering and Exact Sciences; Vol. 6 Núm. 3 (2020); 0200-0206
The Journal of Engineering and Exact Sciences; v. 6 n. 3 (2020); 0200-0206
The Journal of Engineering and Exact Sciences
Universidade Federal de Viçosa (UFV)
instacron:UFV
The Journal of Engineering and Exact Sciences; Vol. 6 Núm. 3 (2020); 0200-0206
The Journal of Engineering and Exact Sciences; v. 6 n. 3 (2020); 0200-0206
The Journal of Engineering and Exact Sciences
Universidade Federal de Viçosa (UFV)
instacron:UFV
Among the microporous materials used in heterogeneous catalysis, zeolites have become promising due to the relevant physicochemical and catalytic properties. Noteworthy is the zeolite ZSM-5 used as a catalyst in reactions in the areas of petrochemica