Alumina Nanoclusters Additives for Upgraded Regenerated Oils
Cirillo, Claudia
Iuliano, Mariagrazia
Ponticorvo, Eleonora
Pica, Giuseppe
Adami, Renata
Senatore, Adolfo
Sarno, Maria

How to Cite

Cirillo C., Iuliano M., Ponticorvo E., Pica G., Adami R., Senatore A., Sarno M., 2023, Alumina Nanoclusters Additives for Upgraded Regenerated Oils, Chemical Engineering Transactions, 101, 43-48.


In this work, alumina nanoclusters have been synthesized by a "wet chemistry" approach directly in a regenerated oil. The produced alumina nanoclusters have a quasi-spherical shape with diameter size < 20 nm. A systematic study of their stability in regenerated Group I lubricant oil, with and without low amounts of viscosity modifiers, was performed. Tribological tests, at an optimum concentration of 0.1 wt. %, showed a significant reduction of friction coefficient and wear scar diameter up to 21 % and 11 % with the addition of polyisobutylene as viscosity modifier.