Kinetic analysis to describe Co-operative redox enhancement effects exhibited by bimetallic Au–Pd systems in aerobic oxidation

Rh(1-x)Pd(x) nanoparticle composition dependence in CO oxidation by oxygen: catalytic activity enhancement in bimetallic systems.

Bimetallic 15 nm Rh(1-x)Pd(x) nanoparticle catalysts of five different compositions and supported on Si wafers have been synthesized, characterized using TEM, SEM, and XPS, and studied in CO oxidation by O(2) in two pressure regimes: atmospheric pressure and 100-200 mTorr. The RhPd bimetallic nanocrystals exhibited similar synergetic effect of increased reaction activity at both atmospheric (76...

CO oxidation catalysed by Pd-based bimetallic nanoalloys.

Density functional theory based global geometry optimization has been used to demonstrate the crucial influence of the geometry of the catalytic cluster on the energy barriers for the CO oxidation reaction over Pd-based bimetallic nanoalloys. We show that dramatic geometry change between the reaction intermediates can lead to very high energy barriers and thus be prohibitive for the whole proce...

Kinetic Analysis of Molybdenite Oxidation

Kinetic Analysis of Molybdenite Oxidation

CO Oxidation at the Au − Cu Interface of Bimetallic Nanoclusters

DFT+U calculations of the structure of CeO2(111)-supported Aubased bimetallic nanoclusters (NCs) show that a strong support−metal interaction induces a preferential segregation of the more reactive element to the NC−CeO2 perimeter, generating an interface with the Au component. We studied several Au -based bimetallic NCs (Au-X, X: Ag, Cu, Pd, Pt, Rh, and Ru) and found that (Au− Cu)/CeO2 is opti...