Showing papers by "Francisco Rodríguez-Reinoso published in 1993"
TL;DR: In this article, the porosity, ash content and oxygen surface groups of the carbon supports on activated carbons were investigated in order to show the effect of these properties on the preparation and activity of the catalysts.
27 citations
TL;DR: In this paper, the evolution in Pt dispersion and sintering resistence in an H2 atmosphere up to 500°C and for up to 84h was explained in terms of the evolution of crystal size and sulfur loss upon pre-graphitization and their effect on the Pt/C interaction.
Abstract: Increasing heat treatment in He (up to 2200 °C) of a carbon black results in supports which after impregnation with H2PtCl6 produce catalysts with very high Pt dispersion (up to 0.99). The evolution in Pt dispersion and sintering resistence (in an H2 atmosphere up to 500°C and for up to 84h) has been explained in terms of the evolution of crystal size and sulfur loss upon pre-graphitization and their effect on the Pt/C interaction.
4 citations
Patent•
16 Dec 1993
TL;DR: In this paper, the authors describe a scenario where a 4 partes % of the cloruro de CINC CON RELACION AL MATERIAL CARBONACEO, SE EVAPORA EL AGUA PARA DISTRIBUIR EL CLORURO DE CINC UNIFORMEMENTE, SE CARBoniza EN ATMOSFERA INERTE A 400 - 700 (GRADOS) C, SE SEPARA EL CLorurO DECINC Y POR ULTIMO SE RECUPERA
Abstract: PROCESO EN EL QUE MATERIALES CARBONACEOS CELULOSICOS EN FORMA PARTICULADA SE TRATAN CON UNA SOLUCION ACUOSA DE CLORURO DE ZN QUE CONTIENE DE 0.25 A 4 PARTES % DE CLORURO DE CINC CON RELACION AL MATERIAL CARBONACEO, SE EVAPORA EL AGUA PARA DISTRIBUIR EL CLORURO DE CINC UNIFORMEMENTE, SE CARBONIZA EN ATMOSFERA INERTE A 400 - 700 (GRADOS) C, SE SEPARA EL CLORURO DE CINC Y POR ULTIMO SE RECUPERA UN PRODUCTO GRANULAR SECO. EL C ACTIVADO GRANULAR, DURO, OBTENIDO SEGUN LA INVENCION TIENE UNA SUPERFICIE ESPECIFICA MUY ALTA, JUNTO CON UNA DENSIDAD RELATIVAMENTE ALTA, QUE LO HACEN ESPECIALMENTE AC=DECUADO PARA SU EMPLEO COMO ABSORBENTE PARA EL METANO.
2 citations