Jump to main content
Jump to site search

Issue 0, 1971
Previous Article Next Article

The surface chemistry of manganese


The interaction of carbon monoxide, hydrogen, and oxygen with manganese films has been investigated. Hydrogen is weakly chemisorbed (ΔH≃ 50 kJ mol–1), but both carbon monoxide and oxygen are incorporated into the lattice. The oxide formed is likely to be MnO. Adsorption data suggest that oxygen incorporation occurs even at 78 K and this is confirmed by work function studies; the surface potential of oxygen on manganese at 78 K is ca.–1·6 V. Carbon monoxide is incorporated extensively above 400 K and the kinetics suggest a diffusion-controlled process involving weakly chemisorbed CO. The catalytic oxidation of CO over manganese was first order in CO and only occurred under conditions where oxygen incorporation was slow compared with the catalytic reaction. A surface which had been oxidised to its maximum extent was inactive in catalysis at the temperature of oxidation.

Back to tab navigation

Article information

J. Chem. Soc. A, 1971, 2774-2778
Article type

The surface chemistry of manganese

R. I. Bickley, M. W. Roberts and W. C. Storey, J. Chem. Soc. A, 1971, 2774
DOI: 10.1039/J19710002774

Search articles by author