Size-Dependent Catalytic Performance and Dynamic Size Changes during Operation of Transition Metal Catalysts in Ammonia Decomposition

The proposed experiments will contribute to determine size, structure and oxidation-state information of Ni and Co catalysts in ammonia decomposition. It will allow an explanation of catalytic differences from the kinetic studies (i.e. activation energy and rate) and contribute to understanding the dynamic re-dispersion of Ni and Co particles at different conditions. The results will be complemented by a full characterization by complementary techniques (XRD, XPS, TEM, TPD) and finally give insights into future catalyst design for ammonia decomposition.