[1] He is a Danish physicist most notable for his work on theoretical description of surfaces, catalysis, materials, nanostructures, and biomolecules.

[2][3] Nørskov is known for his theoretical work on description of surfaces, catalysis, materials, nanostructures, and biomolecules.

His work on computer-based heterogeneous catalysis has in several instances led to the development of new ideas for catalysts for e.g. ammonia synthesis and fuel-cells.

In June 2010, he moved to Stanford University to become the Leland T. Edwards Professor of Chemical Engineering and the Founding Director of the SUNCAT Center for Interface Science and Catalysis.

In July 2018, he moved back to the Technical University of Denmark to hold the Villum Kann Rasmussen Chair.