Platinum-free monometallic and bimetallic nanoparticles as ring-opening catalysts

摘要

Nanoparticle catalyst compositions and methods for preparation of same are described. The nanoparticle catalysts are platinum-free and are useful in effecting selective ring-opening reactions, for example in upgrading heavy oil. The catalyst may be of monometallic composition, or may comprise an alloyed or core-shell bimetallic composition. The nanoparticles are of controlled size and shape.

主权项

1. A bi-metallic nanoparticle ring-opening catalyst composition comprising:
a plurality of monodispersed bimetallic nanoparticles, each of the monodispersed nanoparticles having a size between 1-5 nm in diameter, and each of the monodispersed bimetallic nanoparticles comprising:
a primary non-platinum transition metal having ring-opening catalytic activity; anda secondary transition metal.