Enhacned Performance of Ni and Pt Catalysts Synthesized By Atomic Layer Deposition

Nickel, Pt, and NiPt bimetallic catalysts were synthesized by Atomic Layer Deposition.  Both metals were deposited with cyclopentyldienyl-based precursors and H2.  Nickel particles were approximately 2.5 nm in diamter, and Pt ALD particles were less than sub-nanometer in diamteter when synthesized on an alumina support.  Catalysts were investigated for methane dry reforming activity as well as oxidative dehydrogenation of propane.  The ALD catalysts showed enhanced activity & stability over traditionally prepared catalysts. Temperature programmed evaluations as well as HRTEM were used to characterize the catalysts physical and chemical properties.