We perform transmission electron microscopy (TEM) at different accelerating voltages for analysis of complex nano-structures of platinum (Pt) nanoparticle catalysts synthesized on titanium dioxide. TEM images obtained at 80, 200, 300, and 1000kV are carefully compared. The particle size, density and volume of the Pt nanoparticles deposited under different conditions are evaluated using electron tomography. The atomic structures of Pt nanoparticles on the TiO 2 and amorphous carbon a surfaces are also investigated using spherical aberration corrected TEM in order to study the diffusion of these Pt nanoparticles and atoms.
|Journal||Journal of Physics: Conference Series|
|Publication status||Published - 2012|
|Event||Electron Microscopy and Analysis Group Conference 2011, EMAG 2011 - Birmingham, United Kingdom|
Duration: 2011 Sept 6 → 2011 Sept 9