par Crucq, A.;Degols, L.;Frennet, Alfred 
;Liénard, Georges
Référence Journal of Molecular Catalysis, 59, 2, page (257-266)
Publication Publié, 1990-04
;Liénard, Georges Référence Journal of Molecular Catalysis, 59, 2, page (257-266)
Publication Publié, 1990-04
Article révisé par les pairs
| Résumé : | Supported catalysts containing chlorine originating from the precursor salt used in preparation have been shown previously to exhibit two features towards hydrogen adsorption not found in model catalysts: (1) a very important slow adsorption (2) a very high heat of adsorption at low coverage (strong adsorption). In the present paper, the adsorption of hydrogen is studied on two Rh/Al2O3 chlorine-free catalysts: one prepared using Rh(NO3)3 as precursor; the second one, a previously studied catalyst that has been dechlorinated. It is shown here that both slow and strong adsorption is due mainly to the presence of chlorine. © 1990. |
