Ultrasonic enhancement of the acidity, surface area and free fatty acids esterification catalytic activity of sulphated ZrO2–TiO2 systems

Boffito, D.C. ; Crocellà, V. ; Pirola, C. ; Neppolian, B. ; Cerrato, G. ; Ashokkumar, M. ; Bianchi, C.L.

Journal of catalysis, 2013-01, Vol.297, p.17-26 [Periódico revisado por pares]

Amsterdam: Elsevier Inc

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