The Nature of the Iron Oxide-Based Catalyst for Dehydrogenation of Ethylbenzene to Styrene. Part 1. Solid-State Chemistry and Bulk Characterization -(the active phase of the catalyst consists of a thin layer of KFeO2 supported on a solid solution of K2Fe22O34 in Fe3O4 (continuous solid-state transformations due to the migration of K+ ions)). -(MUHLER, M.; SCHUETZE, J.; WESEMANN, M.; RAYMENT, T.; DENT, A.; SCHLOEGL, R.; ERTL, G.; J.

No abstract

No abstract

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Combined XPS and UPS data were obtained from stoichiometric iodine Cm crystals. The valence band spectra are diffuse although XAS data from the carbon K edge indicate little change in orbital energies upon doping. The C 1s core level (285.0 ev) does not show the expected downshift characteristic of an acceptor compound. The iodine 3d 6/2 level (620.1 ev) exhibits the same binding energy as in IC1 graphite indicating little ionicity. All spectra show significant shifts upon changing the temperature indicative of pronounced Fermi level pinning. The semiconducting nature also follows from the shape of the UPS data. All these data allow one to describe the compound as a Lewis-acid base adduct rather than an acceptor-type synthetic metal.