In:
Progress in Reaction Kinetics and Mechanism, SAGE Publications, Vol. 40, No. 2 ( 2015-04), p. 190-200
Abstract:
Pt/Al 2 O 3 catalyst was prepared from a cetyltrimethylammonium bromide (CTAB)/ n-butanol/cyclohexane water-in-oil (w/o) microemulsion. The preparation conditions of Pt/Al 2 O 3 catalyst were investigated and are discussed in detail. Transmission electron microscopy (TEM) showed uniform Pt nanoparticles (about 3 nm) with high dispersion in the catalyst. The Pt/Al 2 O 3 catalyst exhibited excellent catalytic properties in the liquid-phase hydrogenation of o-chloronitrobenzene ( o-CNB) to o-chloroaniline ( o-CAN). After 60-min reaction at normal pressure and 303 K, the conversion of o-CNB was 81.1% and the selectivity to o-CAN was 96.2%. Kinetic study showed o-CNB hydrogenation to be a first-order reaction with an apparent activation energy of 56.37 kJ mol −1 . The microemulsion-derived catalyst shows a higher catalytic activity than an impregnation-drived catalyst.
Type of Medium:
Online Resource
ISSN:
1471-406X
,
1471-406X
DOI:
10.3184/146867815X14262622455960
Language:
English
Publisher:
SAGE Publications
Publication Date:
2015
detail.hit.zdb_id:
2018085-8
