Related Experiment Video
Updated: Jun 29, 2026

Activating Molecules, Ions, and Solid Particles with Acoustic Cavitation
Published on: April 11, 2014
Kinetic evidence for the influence of subsurface oxygen on palladium surfaces towards CO oxidation at high
Chinnakonda S Gopinath1, Kandasamy Thirunavukkarasu, Sankaranarayanan Nagarajan
1Catalysis Division, National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India. cs.gopinath@ncl.res.in
Abstract:
Transient state kinetics of the catalytic oxidation of CO with O(2) on Pd-surfaces has been measured under isothermal conditions by using a molecular beam approach. Systematic studies were carried out as a function of reaction temperature and CO+O(2) composition. With sufficient kinetic evidence, we have demonstrated the positive influence of subsurface oxygen towards CO-adsorption and oxidation to CO(2) at high temperatures (600-900 K) on Pd-surfaces, and the likely electronic nature of the surface changes with oxygen in the subsurface. These studies also provide a direct proof for CO-adsorption with a significantly reactive sticking coefficient at high temperatures on Pd-surfaces exhibiting a significant subsurface O-coverage.
More Related Videos
Related Concept Videos
Heterogeneous Catalysis
Catalysis
Oxygen Transport in the Blood
Oxidation of Alkenes: Syn Dihydroxylation with Potassium Permanganate
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide
Oxidative Cleavage of Alkenes: Ozonolysis
Ozone is a symmetrical bent molecule stabilized by a resonance structure.

