THE ROLE OF PT-LOADING, THERMAL-TREATMENT AND EXPOSURE TO AIR ON THE ACID-BASE BEHAVIOR OF A PT-CARBON BLACK CATALYST

被引：32

作者：

ARICO, AS ^{[1
]}

ANTONUCCI, V ^{[1
]}

PINO, L ^{[1
]}

ANTONUCCI, PL ^{[1
]}

GIORDANO, N ^{[1
]}

机构：

[1] UNIV REGGIO CALABRIA,FAC ENGN,I-89100 REGGIO CALABRIA,ITALY

来源：

CARBON | 1990年 / 28卷 / 05期

关键词：

carbon black; potentiometric titrations; Pt catalyst; surface groups;

D O I：

10.1016/0008-6223(90)90061-3

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：

The acid-base properties of a series of Pt/carbon black catalysts varying in Pt loadings and in nitrogen activation temperature (110°C-900°C) were investigated using a potentiometric titration technique. The amounts of acidic and basic surface functional groups were found to differ significantly, denoting a paramount influence on them of the catalyst precursor (H2PtCl6) and of the activation temperature levels. The exposure to air also causes variations in surface properties, mainly through the effect of the relative humidity. © 1990.

引用

页码：599 / 609

页数：11

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