Effect of the size of Fe@Fe3O4 nanoparticles deposited on carbon nanotubes on their oxidation–reduction characteristics

Fe@Fe 3 O 4 nanoparticles of controlled size, deposited on carbon nanotubes, were obtained by deposition from colloidal solutions. It was shown that the size and size distribution of the nanoparticles do not change during deposition on carbon nanotubes. By temperature-programmed reduction with hydrogen it was established that the temperatures at the beginning of reduction of the Fe@Fe 3 O 4 /CNT samples do not depend monotonically on the size of the deposited nanoparticles.