载体二氧化钛的晶型对对硝基苯酚加氢催化剂Ni/TiO2的影响

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载体二氧化钛的晶型对对硝基苯酚加氢催化剂Ni/TiO₂的影响

陈日志^a; 杜艳^b; 邢卫红^a; 徐南平^a

^a College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China
^b College of Urban Construction and Safety & Environmental Engineering, Nanjing University of Technology, Nan-jing 210009, China

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2006-10-28 发布日期:2006-10-28
通讯作者: 陈日志

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

CHENRizhi^a; DUYan^b;XINGWeihong^a; XUNanping^a

^a College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China
^b College of Urban Construction and Safety & Environmental Engineering, Nanjing University of Technology, Nan-jing 210009, China

Received:1900-01-01 Revised:1900-01-01 Online:2006-10-28 Published:2006-10-28
Contact: CHEN Rizhi

摘要/Abstract

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.

关键词: p-nitrophenol;catalytic hydrogenation;p-aminophenol;Ni/TiO2 catalyst

Abstract: 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.

Key words: p-nitrophenol, catalytic hydrogenation, p-aminophenol, Ni/TiO2 catalyst

陈日志, 杜艳, 邢卫红, 徐南平. 载体二氧化钛的晶型对对硝基苯酚加氢催化剂Ni/TiO₂的影响[J]. CIESC Journal.

CHENRizhi, DUYan,XINGWeihong, XUNanping. The Effect of Titania Structure on Ni/TiO₂ Catalysts for p-Nitrophenol Hydrogenation
[J]. .

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载体二氧化钛的晶型对对硝基苯酚加氢催化剂Ni/TiO₂的影响

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

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