SEARCH Articles Figures Tables Catalyst particles Diffusion in a Catalyst Particle Diffusion in catalyst particles Diffusivity in a catalyst particle Heterogeneous Catalysis Kinetics in Porous Catalyst Particles Image contrast and visibility of supported small metal catalyst particles in HRTEM Multiplicity of Steady States in Catalyst Particles Particle nucleation and sintering in supported metal catalysts Reaction and Diffusion in a Catalyst Particle