TY - JOUR
T1 - Infra-red determination of the isotherm of hydrogen adsorption on a Pt/Al2O3 catalyst
AU - Primet, Michel
AU - Basset, Jean-Marie Maurice
AU - Mathieu, Michel Vital
PY - 1974/12/1
Y1 - 1974/12/1
N2 - Of the various forms of hydrogen adsorbed on platinum only hydrogen weakly and reversibly adsorbed is detected by an infra-red band at 2120 cm -1. The preparation of a well dispersed sample of Pt/Al 2O3 catalyst containing 10% platinum allows us to determine accurately the hydrogen adsorption isotherm of this weakly adsorbed species. Only a dissociative Langmuir model fits the experimental results in the pressure range of 10-1 to 700 Torr and temperature range of 27 to 95°C. The heat of adsorption (-5 × 104 J mol-1) and the isosteric heat of adsorption are in good agreement with previous calorimetric data.
AB - Of the various forms of hydrogen adsorbed on platinum only hydrogen weakly and reversibly adsorbed is detected by an infra-red band at 2120 cm -1. The preparation of a well dispersed sample of Pt/Al 2O3 catalyst containing 10% platinum allows us to determine accurately the hydrogen adsorption isotherm of this weakly adsorbed species. Only a dissociative Langmuir model fits the experimental results in the pressure range of 10-1 to 700 Torr and temperature range of 27 to 95°C. The heat of adsorption (-5 × 104 J mol-1) and the isosteric heat of adsorption are in good agreement with previous calorimetric data.
UR - http://www.scopus.com/inward/record.url?scp=0003306539&partnerID=8YFLogxK
U2 - 10.1039/F19747000293
DO - 10.1039/F19747000293
M3 - Article
AN - SCOPUS:0003306539
SN - 0300-9599
VL - 70
SP - 293
EP - 298
JO - Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
JF - Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
ER -