Hydrogenation of Carbon Monoxide Adsorbed on Supported Platinum Group Metals

Catalytic Hydrogenation of Carbon Monoxide

The hydrogenation of carbon monoxide and carbon dioxide on various steel catalysts was studied in the temperature range of 800" to 1,300'F. and at pressures from 5 to 30 atm. The feed gases (3.75 to 20 SCFH) were passed over a catalyst bed of 1/8-h. steel balls supported in a brass-lined reactor 0.81 in. in d i m . The percentage of carbon oxides in the feed was 30% in the runs using a Hz-COZ f...

The role of adsorbed hydroxyl species in the electrocatalytic carbon monoxide oxidation reaction on platinum.

The assumption that "OH(ads)" or other oxygen containing species is formed on polycrystalline or nanoparticulate platinum through a fast and reversible process at relatively low potentials is often made. In this paper we discuss the implications of this assumption and the difficulty in reconciling it with experimental phenomena. We show how presenting chrono-amperometric transients as log-log p...

Surface enhanced sum frequency generation of carbon monoxide adsorbed on platinum nanoparticle arrays

Sum frequency generation ~SFG! vibrational spectroscopy is used to study the adsorption of CO at ;1 atm pressure on Pt nanoparticle arrays and Pt thin films. The SFG signal of CO adsorbed on platinum particles of 45 nm diameter is ;10 000 times larger than from CO on smooth Pt films. The large enhancement is explained by plasmon resonance and Maxwell–Garnett theory. The Pt arrays are prepared u...

Catalytic Oxidation of Carbon Monoxide by Cobalt Oxide Catalysts Supported on Oxidized-MWCNT

Cobalt oxide catalysts supported on oxidized multi-walled carbon nanotubes (MWCNT) for the low-temperature catalytic oxidation of carbon monoxide were prepared by an impregnation-ultrasound method. These catalysts were characterized by N2 adsorption/desorption, TEM, XRD, Raman, and H2-TPR methods. The XRD and Raman results indicated that the phase of the synthesized cobalt...

Different Reaction Pathways for the Hydrogenation of o-cresol on Ruthenium, Rhodium, Palladium and Platinum Nanoparticles Supported on Carbon