In situ real-time neutron imaging of gaseous H 2 adsorption and D 2 exchange on carbon-supported Pd catalysts.

We use neutron imaging to observe the adsorption/absorption of hydrogen within a packed catalyst bed of a Pd/C catalyst at a spatial and temporal resolution of ∼430 μm and a ∼9 s respectively. Additionally, the H/D exchange process across the catalyst bed is followed in real time.