Synthesis and characterizations of Al2O3 using Calliandra calothyrsus leaf extract and its potential application for increasing fuel oxidation stability number
Year: 2025
Type: article
Abstract: Calliandra calothyrsus leaf extract (CLE) successfully produced amorphous and gamma Al 2 O 3 by a simple one-pot method. The secondary metabolites of alkaloids and saponins acted as weak base suppliers and capping agents. The various calcination temperatures resulted in different structures and surface morphologies. The flower-like form of gamma Al 2 O 3 was observed at high temperatures of 700 °C, and 800 °C. As a result, the rod-flake structure of amorphous Al 2 O 3 was obtained at 600 °C according to structural and morphological analysis. Al 2 O 3 with a blended fuel containing Research Octane Number (RON) 95 and 10 % ethanol, as a gasoline model, was employed to analyze the oxidation stability number. Interestingly, Al 2 O 3 calcined at 600 °C has the highest oxidation stability due to the rod shape of amorphous alumina and a higher average pore size confirmed by XRD, SEM and N 2 adsorption-desorption analyses. This work demonstrates the preparation of Al 2 O 3 with different phases using plant extract by a simple one-pot green method and its promising application as a fuel additive for increasing oxidation stability numbers. • Al 2 O 3 nanoparticle was synthesized using CLE. • Calcination of Al 2 O 3 was performed at 600 °C, 700 °C, and 800 °C. • Characterization included FT-IR, XRD, N 2 adsorption-desorption, SEM-EDS, TEM. • Al 2 O 3 _600 had the highest oxidation stability. • Increased oxidation stability was ascribed to the rod shape of amorphous and high average pore size.
Institutions: Pertamina (Indonesia), University of Indonesia
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,190
Funder: Universitas Indonesia
OpenAlex ID: W4412049034