Layered catalyst

摘要

A layered catalyst including a surface axis including a catalyst material layer, and a substrate material layer contacting the catalyst material layer. The catalyst material layer includes a compressed atomic distance between two adjacent catalyst atoms along the surface axis relative to an atomic distance of the same catalyst material as in bulk. The substrate material has a higher surface energy than the catalyst material. In certain instances, at least 70 percent of total atoms of the catalyst material are in a film growth mode. In certain other instances, a surface free energy of the substrate material is 1 to 50 percent greater than a surface free energy of the catalyst material. In yet certain other instances, the catalyst material layer has a d-band center in a range of −2.1 eV to −2.25 eV.

主权项

1. A catalyst structure comprising:
a substrate layer containing a bulk substrate material and a plurality of atomic substrate monolayers supported on the bulk substrate material; and a catalyst layer containing a plurality of atomic catalyst monolayers including at least first and second catalyst monolayers, the first catalyst monolayer supported on the plurality of atomic substrate monolayers, and the second catalyst monolayer being an exposed, surface monolayer.