The Effect of Titania Structure on Ni/TiO2 Catalysts for p-Nitrophenol Hydrogenation

被引：0

作者：

陈日志 ^{[1
]}

杜艳 ^{[2
]}

邢卫红 ^{[1
]}

徐南平 ^{[1
]}

机构：

[1] College of Chemistry and Chemical Engineering, Nanjing University of Technology 2. College of Urban Construction and Safety & Environmental Engineering, Nanjing University of Technology

来源：

ChineseJournalofChemicalEngineering | 2006年 / 05期

关键词：

p-nitrophenol; catalytic hydrogenation; p-aminophenol; Ni/TiO2; catalyst;

D O I：

暂无

中图分类号：

O643.36 [催化剂];

学科分类号：

081705 ;

摘要：

The catalytic hydrogenation of p-nitrophenol to p-aminophenol was investigated over Ni/TiO2 catalysts prepared by a liquid-phase chemical reduction method. The catalysts were characterized by inductively coupled plasma (ICP), X-ray powder diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectra (XPS) and temperature-programmed reduction (TPR). Results show that the titania structure has favorable influence on physio-chemical and catalytic properties of Ni/TiO2 catalysts. Compared to commercial Raney nickel, the catalytic activity of Ni/TiO2 catalyst is much superior, irrespective of the titania structure. The catalytic activity of anatase titania supported nickel catalyst Ni/TiO2(A) is higher than that of rutile titania supported nickel catalyst Ni/TiO2(R), possibly because the reduction of nickel oxide to metallic nickel for Ni/TiO2(A) is easier than that for Ni/TiO2(R) at similar reaction conditions.

引用

页码：665 / 669

页数：5