Related Experiment Video
Updated: Sep 4, 2026

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
Ceria support enhances activity of CoNi catalysts for ammonia synthesis under magnetic heating
Nina Križaj Kosi1,2, Anja Sedminek1, Janvit Teržan3
1Department for Material Synthesis, Jožef Stefan Institute Jamova cesta 39 Ljubljana 1000 Slovenia saso.gyergyek@ijs.si.
Abstract:
Ammonia synthesis is an important target for electrified chemical production, but conventional processes rely on externally heated reactors and highly active catalysts that often contain noble metals. Here, we investigate noble-metal-free CoNi catalysts for ammonia synthesis under magnetic induction heating using a hierarchically structured CoNi/alumina platform. Additional CoNi deposition on alumina increased the number of CO-accessible metallic sites but produced only limited activity enhancement, while ceria incorporation without additional CoNi did not substantially increase the catalyst-mass-normalized NH3 formation rate. In contrast, CoNi/CN-A-C exhibited the highest turnover frequency, catalyst-mass-normalized NH3 formation rate, and outlet NH3 concentration, surpassing the Ru/CN-A benchmark at 5.5 MPa. The results associate the pronounced enhancement with the combination of deposited CoNi and a ceria-containing environment.
Related Concept Videos
Heterogeneous Catalysis
Catalysis
Catalysis
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
Introduction to Mechanisms of Enzyme Catalysis
Aldehydes and Ketones with Amines: Enamine Formation Mechanism

