▎ 摘　　要

A new two-step procedure for modifying graphene oxide by the methylation of its surface with trimethyl-o-formate followed by the treatment with methyl iodide was developed. The methylation product was used as a support for the formation of rhodium nanoparticles. The obtained samples of graphene oxide containing rhodium nanoparticles were characterized by IR spectroscopy, X-ray fluorescence spectroscopy, and transmission electron microscopy. The Rh-containing nanocomposites were used as atalysts for the hydroformylation of olefins in upercritical carbon dioxide and organic solvents.