Accession Number : ADA130582

Title :   The Chemistry of Metals in Ionomers. Reactions of Rhodium-PSSA with CO, H2 and H20.

Descriptive Note : Technical rept.,

Corporate Author : BROWN UNIV PROVIDENCE RI DEPT OF CHEMISTRY

Personal Author(s) : Mattera,Vincent D , Jr ; Squattrito,Philip J ; Risen,William M , Jr

PDF Url : ADA130582

Report Date : 23 May 1983

Pagination or Media Count : 27

Abstract : Rhodium (III) ions have been incorporated in ionic domains of sulfonated linear polystyrene (PSSA) to form PSSA-Rh(III) films. The Rh-containing domains can act as isolated chemical reactors, and their chemical interactions have been explored in this work by controlling the exposure of the rhodium sites to CO, H2 and H2O under mild conditions. Reaction with CO at low temperature, without either prior reduction by H2 or complete dehydration of the PSSA-Rh(III) film, resulted in production of a Rh(I) (CO)2 species. Partial or complete reduction of the films with H2, proceeded or followed by exposure to CO results in the cis-dicar-bonyl and, under various conditions, linear and bridging PSSA-Rh(O) bonyls, and CO bound to Rh(O) particles. The implications of the results for catalysis are discussed.

Descriptors :   *Rhodium, *Polystyrene, *Chemical reactions, Ionomers, Catalysis, Polymers, Carbonyl compounds, Reduction(Chemistry), Polymeric films, Carbon monoxide, Hydrogen, Water

Subject Categories : Polymer Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE