Modification of Graphene quantum dots with metformine/Co(II) as an efficient oxidation catalyst

Nowadays, graphene quantum dots (GQDs) has drawn a lot of attention because of their properties like high accessible surface area, less cytotoxicity, high chemical stability, outstanding biocompatibility. It is believed that GQDs can attend as a platform for the development of other nanomaterial such as metals and metal oxides to use as catalysts. Thus, GQDs can be a superior candidate as a host for Co complexes to fabricate a heterogenous catalyst for selective oxidation. In continues of our interest in developing the useful catalytic systems for oxidation of organic compounds,1-4 herein metformin employed as a ligand for connecting Co(II) to GQDs support to furnish a heterogeneous catalyst which enjoys from the high aspect ratio due to atomic distribution of catalyst on the support. Easy recovery, sustainability, high surface area, and chemical stability of the new catalyst make it attractive for catalytic goals. The catalyst was employed in the oxidation reaction of alkylarenes with high yields.

کلیدواژه ها:

Graphene quantum dot ، Metformine ، Heterogeneous catalyst ، oxidation reaction