Sr. Vaudagna et al., INFLUENCE OF THE PREPARATION CONDITIONS ON THE TEXTURAL PROPERTIES AND N-HEXANE ISOMERIZATION ACTIVITY OF PT SO42--ZRO2/, Reaction kinetics and catalysis letters, 58(1), 1996, pp. 111-117
The influence of preparation conditions on the textural properties of
Pt/SO42--ZrO2 has been studied. The presence of sulfate preserves a gr
eat part of the small diameter pores after calcination, thus maintaini
ng the specific surface area. Platinum is partially lost when sulfatio
n takes place after platinum addition. The platinum containing catalys
ts show good activity (conversion about 65%) and selectivity (about 94
%) for n-hexane isomerization, while SO42--ZrO2 presents a poor activi
ty. The catalytic activity is independent of the order of platinum and
sulfate addition.