2012
DOI: 10.1590/s0100-40422012000400005
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Hidrólise de celulose por catalisadores mesoestruturados NiO-MCM-41 e MoO3-MCM-41

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Cited by 12 publications
(14 citation statements)
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References 23 publications
(27 reference statements)
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“…The titanium oxide showed peaks with 2θ = 25.5°, 38.1°, 48.1° and 54.5° which are characteristic of anatase titanium IV oxide 5 ( Figure 1d). Similar results were also previously found in other works when the nickel or palladium was supported on siliceous materials 12,13 . FTIR spectra for MCM-41 calcinated and non-calcinated samples are shown in Figure 2.…”
Section: Resultssupporting
confidence: 92%
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“…The titanium oxide showed peaks with 2θ = 25.5°, 38.1°, 48.1° and 54.5° which are characteristic of anatase titanium IV oxide 5 ( Figure 1d). Similar results were also previously found in other works when the nickel or palladium was supported on siliceous materials 12,13 . FTIR spectra for MCM-41 calcinated and non-calcinated samples are shown in Figure 2.…”
Section: Resultssupporting
confidence: 92%
“…The presence of nickel, palladium or titanium oxides phases along with the MCM-41 materials were observed in the prepared samples. Peaks corresponding to NiO phase 12 was confirmed by the low intensity peaks at 2θ = 37.1° and 43.2° (Figure 1b). Also PdO phase was identified by peaks at 2θ = 33.6°, 41.7° and 54.4° (Figure 1c).…”
Section: Resultsmentioning
confidence: 74%
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“…Observa-se uma predominância de mesoporos (20 -500 Å) em relação aos microporos (20 Å) e macroporos (> 500 Å). O uso de catalisadores mesoporosos é mais vantajoso no que se refere ao acesso dos substratos reacionais aos sítios ativos do catalisador (SILVA et al, 2012).…”
Section: Adsorção Físicadeterminação Da áRea Superficial Volume E DIunclassified
“…1 Esses materiais foram descobertos no início da década de 90 pelos pesquisadores da Mobil, obtendo uma nova família de materiais mesoporosos com tamanho de poros bem definidos e ajustáveis, com grandes áreas específicas, da ordem de 1000 m 2 g -1 , a qual foi denominada M41S. 2,3 MCM-41 se destaca como um dos membros mais importantes desta família, exibindo um arranjo hexagonal de mesoporos unidimensionais o qual permite o acesso a moléculas grandes, tais como, polietilenoglicol (PEG), 4 celulose, 5 triacilglicerídeos, 6 ácidos graxos 7 e ácido fosfotúngstico. 8 Ademais, possui excelente estabilidade térmica, além da vasta aplicação catalítica em um número maior de substratos do que as zeólitas comuns.…”
Section: Introductionunclassified