In situ heating and tomography of gold nanoparticles on carbon structures

A series of thermally mediated dynamic (in situ) experiments in the transmission electron microscope (TEM) have been performed, in order to obtain improved understanding and control of the ripening and migration processes of gold nanoparticles on multi-wall carbon nanotubes (MWNTs). In particular, post-heating tomography was used to appraise the resultant dispersion of the nanoparticles within these three-dimensional (3D) composite structures.