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Síntese e caracterização de nano/micromat derivados de hidrotermal

Síntese e caracterização de nano/micromat derivados de hidrotermal

Chandrappa Gujjarahalli / Nagaraju Ganganagappa

106,60 €
IVA incluido
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Enseñanza de una materia específica
ISBN:
9786208830533
106,60 €
IVA incluido
Disponible

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Sintetizámos vários tipos de óxidos/sulfuretos metálicos, tais como óxido de molibdénio, sulfureto de molibdénio, óxido de zinco, nanoringos/nanofios/nanofibras de óxido de vanádio, através de métodos hidrotérmicos ou solvotérmicos a baixa temperatura. Entre as tecnologias existentes, o método hidrotérmico/solvotérmico oferece muitas vantagens, incluindo um elevado grau de homogeneidade química alcançado à escala molecular, utilização de temperaturas e pressões moderadas, produção de pós nanocristalinos numa única etapa e eliminação de calcinações a altas temperaturas. Uma vasta gama de materiais óxidos cristalinos, simples e multicomponentes pode ser produzida por este método. Neste método, é possível sintetizar compostos de metais de transição com estados de oxidação invulgares, fases de baixa temperatura e compostos metaestáveis. O efeito da temperatura, concentração, duração, papel dos tensioativos, solventes, etc., foi estudado para conhecer em pormenor a estrutura e morfologia do produto sintetizado. O produto obtido foi caracterizado por difração de raios X, FT-IR, espectroscopia Raman, XPS, propriedades ópticas por UV-Vis e espectroscopia de fotoluminescência e morfologia por SEM/TEM acoplado com EDAX.

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