TY - JOUR
T1 - P-nitrophenol hydrogenation over a novel Ni/TiO2 catalyst
AU - Wang, Haitang
AU - Zhu, Yinhua
AU - Yang, Zhuhong
AU - Liu, Jinlong
AU - Sun, Qingjie
AU - Lu, Xiaohua
AU - Feng, Xin
PY - 2009/5
Y1 - 2009/5
N2 - A nano-sized nickel catalyst supported on mesoporous TiCh whisker, Ni/TiO2, was prepared by incipient impregnation using Ni(NO3)2-6H2O solution. The physical and reduction characters of the Ni/TiO2 catalyst were measured by scanning electron microscopy, X-ray diffraction, N2 adsorption, thermogravimetric analysis, and temperature-programmed reduction, and its catalytic activity was investigated by p-nitrophenol hydrogenation. The results indicated that the catalyst possessed whisker morphology, high crystallinity anatase phase, high specific surface area, and mesostructure. It also showed high activity and stability. The conversion of p-nitrophenol over Ni/TiO2 increased with increasing nickel loading. When the nickel loading was over 10%, the catalyst activity and selectivity changed little. The 10%Ni/TiO2 catalyst calcined at 500°C and reduced at 450°C showed the best catalytic performance. The catalytic activity of Ni/TiO2 was four times higher than that of the commercial Raney nickel. No obvious deactivation of the catalyst was observed after repeated using seven times.
AB - A nano-sized nickel catalyst supported on mesoporous TiCh whisker, Ni/TiO2, was prepared by incipient impregnation using Ni(NO3)2-6H2O solution. The physical and reduction characters of the Ni/TiO2 catalyst were measured by scanning electron microscopy, X-ray diffraction, N2 adsorption, thermogravimetric analysis, and temperature-programmed reduction, and its catalytic activity was investigated by p-nitrophenol hydrogenation. The results indicated that the catalyst possessed whisker morphology, high crystallinity anatase phase, high specific surface area, and mesostructure. It also showed high activity and stability. The conversion of p-nitrophenol over Ni/TiO2 increased with increasing nickel loading. When the nickel loading was over 10%, the catalyst activity and selectivity changed little. The 10%Ni/TiO2 catalyst calcined at 500°C and reduced at 450°C showed the best catalytic performance. The catalytic activity of Ni/TiO2 was four times higher than that of the commercial Raney nickel. No obvious deactivation of the catalyst was observed after repeated using seven times.
KW - Catalytic hydrogenation
KW - Mesoporous titania whisker
KW - Nickel
KW - P-aminophenol
KW - P-nitrophenol
KW - Supported catalyst
UR - http://www.scopus.com/inward/record.url?scp=67649446194&partnerID=8YFLogxK
M3 - 文章
AN - SCOPUS:67649446194
SN - 1872-2067
VL - 30
SP - 414
EP - 420
JO - Chinese Journal of Catalysis
JF - Chinese Journal of Catalysis
IS - 5
ER -