Improving the energy yield of plasma-based NOX synthesis with in situ adsorption

Plasma-based NOX synthesis from air is a promising option to electrify nitrogen fixation. However, the energy efficiency of direct plasma-based NOX synthesis in a plasma reactor is severely limited by NOX decomposition in the plasma phase. In situ NOX adsorption on MgO improves the NOX energy yield in a dielectric barrier discharge (DBD) plasma reactor by a factor of 15

Recent Progress on Ammonia Cracking Technologies for Scalable Hydrogen Production

The global energy transition necessitates the development of technologies enabling cost-effective and scalable conversion of renewable energies into storable and transportable forms. Green ammonia, with its high hydrogen storage capacity, emerges as a promising carbon-free hydrogen carrier. This article reviews recent progress in industrially relevant catalysts and technologies for ammonia cracking, which is a pivotal step in utilizing ammonia as a hydrogen storage material. Catalysts based on Ru, Ni, Fe, Co, and Fe-Co are evaluated, with Co-based catalysts showing exceptional potential for ammonia cracking. Different reactor technologies and their applications are briefly discussed. This review concludes with perspectives on overcoming existing challenges, emphasizing the need for catalyst development, effective reactor design, and sustainable implementation in the context of the energy transition