2018
DOI: 10.1590/s1517-707620180004.0583
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Compósitos de xerogéis de carbono/TiO2

Abstract: RESUMO Xerogéis de carbono (CXs) são materiais constituídos por uma estrutura tridimensional formada por esferas nanométricas interligadas e poros interconectados. Diversos trabalhos apresentam os CXs como suporte para utilização em catálise. A principal vantagem destes suportes é que suas propriedades físicas e químicas superficiais podem ser adaptadas às exigências catalíticas. Neste trabalho, compósitos CX/TiO2 foram sintetizados em etapa única, por polimerização/condensação sol-gel de solução formaldeído e… Show more

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Cited by 2 publications
(2 citation statements)
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References 43 publications
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“…Finally, the spiral shape 29 . Supported by the concept of "circularity" 30 propagated by Ginzburg and Bakthin, where both historians aim to demonstrate the movement of ideas in both popular and erudite culture, I see that although ideas circulate, the spiral shape designates how these same ideas reach different levels in the understanding of human beings, creating and expanding the new concepts embedded in the propositions of his time.…”
Section: Spiralmentioning
confidence: 97%
See 1 more Smart Citation
“…Finally, the spiral shape 29 . Supported by the concept of "circularity" 30 propagated by Ginzburg and Bakthin, where both historians aim to demonstrate the movement of ideas in both popular and erudite culture, I see that although ideas circulate, the spiral shape designates how these same ideas reach different levels in the understanding of human beings, creating and expanding the new concepts embedded in the propositions of his time.…”
Section: Spiralmentioning
confidence: 97%
“…-When I use the geometric shape of the spiral to the detriment of the circular shape, I do not intend to establish the understanding in order to position it as positive / negative, ascending / descending or any other designation, as it has no evaluative connotation, but to explain the movement of the ruptures and permanences that happen in history and that with this open new conceptual horizon for men 30 . GINZBURG, 2011 and BAKHTIN, 2010.…”
mentioning
confidence: 99%