First, a continuous flow of 0.7 Nl/min of H2 was fed into the reactor for regeneration of the sorbent from the previous experiment or during heating or cooling of the reactor for a change in reaction conditions. Subsequently, the phase of reaction and sorption was started by switching from the pure H2 feed to 0.7 Nl/min of a stochiometric mixture of H2 and N2. These conditions were kept constant for 1 h, sufficient to reach full saturation of the sorbent. Saturation phase was defined by a constant measured NH3 outlet molar fraction for a minimum of 15 minutes (dy/dt < 1 %). Fulfilling this criterion also marks the end of each experiment. Finally, the sorbent was regenerated by flowing 0.7 Nl/min of H2 for 2 h at the same temperature as the prior experiment and the experiment was repeated. A constant flow rate of 0.015 Nl/min He was added at the reactor outlet as external standard for bed configuration d). Each cycle was measured at least twice under identical conditions to ensure reproducibility.