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Síntese e caracterização de zeólitas ZSM-5 por diferentes rotas e seu emprego na produção de olefinas leves a partir de etanol
(Universidade Federal de Santa MariaBREngenharia de ProcessosUFSMPrograma de Pós-Graduação em Engenharia de Processos, 2014-08-12)
This work aims the synthesis and study of ZSM-5 catalysts for the conversion of
ethanol to light olefins, especially, using an alternative and inexpensive route. The
ethanol emerges as a renewable source for the production ...
Influence of the Degree of Doping on the Efficiency in a Battery LiFePO4 - Yttrium Used As Cathode Material
(2016)
It has been proposed as a potential cathode materials for next generation of lithium ion batteries the
LiFePO4 .
A good cathode materials must meet the following properties: high charge-discharge, high cycles (1000 ...
Homogeneous precipitation of layered Ni(II)–Cr(III) double hydroxides
(Academic Press Inc Elsevier Science, 2007-05)
An adequate account of the hydrolytic properties of Cr3+ and Ni2+ allows setting the conditions for homogeneous nucleation of layered Ni(II)–Cr(III) double hydroxides; water exchange and hydrolysis rate constants indicate ...
Estudo das propriedades vibracionais de titanatos lamelares
(Universidade Federal de Minas GeraisUFMG, 2017-12-12)
Titanium oxides with lamellar structure have been shown to be important materials for technological applications. There are many papers concerning in the use of these materials in photocatalysis, batteries, sensors, dye ...
Síntese, caracterização e avaliação das propriedades fotocatalíticas do CuO e do compósito CuO/ZnO
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM CIÊNCIA E ENGENHARIA DE MATERIAIS, 2019-04-12)
Due to the large number of industries and the excessive amount of pollutants
they produce, the environment and humans are increasingly exposed to risks. One of
the main agents in water pollution are the dyes, produced ...
Síntese de titanatos alcalinos e avaliação na transesterificação catalítica
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQ, 2012-06-11)
Three methods for the synthesis of sodium titanates were investigated: solid state treatment (800 oC), hydrothermal treatment (110 oC) and sol-gel method (55 oC). The titanium oxide was used as starting compound for ...
Estudo da incorporação de nanopartículas de óxido de zinco e pentóxido de nióbio em polietileno linear de baixa densidade
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEMCâmpus São Carlos, 2019-03-29)
Linear low-density polyethylene (LLDPE) is one of the most widely used materials in greenhouse covering, due to its low cost and transparency to photosynthetically active radiation up to 80%. However, this polymer also ...
Hierarchical mesoscale assembly of PbO(2)on 3D titanium felt/TiO2 nanotubular array electrode for anodic decolourisation of RB-5 dye
(Iop Publishing Ltd, 2020-12-01)
Hierarchical PbO(2)nanoparticles (NPs) were grown by hydrothermal method on TiO(2)nanotubes (NTs) at 3D titanium felt, which is simple and scalable method. TiO2NTs were formed on titanium felt by anodising at 25 degrees C ...
Síntese e caracterização de peneiras moleculares mesoporosas do tipo MCM-41 e AlMCM-41 a partir de fontes alternativas de sílica e de alumínio
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em Ciência e Engenharia de MateriaisProcessamento de Materiais a partir do Pó; Polímeros e Compósitos; Processamento de Materiais a part, 2009-06-01)
The mesoporous molecular sieves of MCM-41 and AlMCM-41 type are considered as promising support for metal in the refining processes of petroleum-based materials as catalysts and adsorbents for environmental protection. In ...