Pd/polyaniline as the catalysts for 2-ethylanthraquinone hydrogenation. The effect of palladium dispersion

被引：92

作者：

Drelinkiewicz, A

Hasik, M

Kloc, M

机构：

[1] Jagiellonian Univ, Dept Chem, PL-30060 Krakow, Poland

[2] Acad Min & Met, Dept Mat Sci & Ceram, PL-30059 Krakow, Poland

来源：

CATALYSIS LETTERS | 2000年 / 64卷 / 01期

关键词：

2-ethylanthraquinone; polyaniline; palladium catalyst; hydrogenation;

D O I：

10.1023/A:1019078718474

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

By doping of polyaniline (PANI) in PdCl2 aqueous and ethanol solutions the catalysts containing crystalline and colloidal Pd particles of different sizes were prepared. The size of palladium particles present in Pd/PANI catalysts (characterised by SEM and XRD methods) influenced the course of 2-ethylanthraquinone (eAQ) hydrogenation, a key step in the industrial production of H2O2. The presence of large palladium particles promotes reactions leading to the formation of the so-termed "degradation products" not capable of hydrogen peroxide formation.

引用

页码：41 / 47

页数：7

共 14 条

[1]

CAO Y, 1989, POLYMER, V30, P230

[2]

CRONAN CS, 1959, CHEM ENG, P118

[3]

DIETOLF S, 1987, Patent No. 3538816

[4] KINETIC ASPECTS IN THE SELECTIVITY OF DEEP HYDROGENATION OF 2-ETHYLANTHRAQUINONE OVER PD/SIO2 [J].