A novel approach to synthesizing highly active Ni2P/SiO2 hydrotreating catalysts
A novel approach to synthesizing highly active Ni2P/SiO2 hydrotreating catalysts
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DOI：
10.1016/j.jcat.2005.10.021
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发表时间：
2006-01-01
影响因子：
7.3
通讯作者：
Prins, R
中科院分区：
文献类型：
--
作者：
Yang, SF;Liang, CH;Prins, R
用10% PH3/H-2对金属镍颗粒进行处理，得到了分散性高的二氧化硅负载磷化镍颗粒。由于磷化反应发生在相对较低的温度下，所以细小的磷化镍颗粒与金属颗粒具有相同的尺寸，并且保持了这种尺寸。采用CO和O-2化学吸附、XRD和P-31 MAS NMR对催化剂进行了表征。考察了镍源对催化剂金属分散性能的影响。结果表明，在H2S存在和不存在的情况下，二氧化硅负载的磷化镍催化剂对二苯并噻吩的加氢脱硫和邻甲基苯胺的加氢脱氮都很有活性。(c) 2005爱思唯尔公司版权所有。
Silica-supported nickel phosphide particles with high dispersion were obtained by treating nickel metal particles on a support with 10% PH3/H-2. Because the phosphidation occurred at relatively low temperature, the small nickel phosphide particles had the same size as the metal particles, and this size was maintained. The resulting catalysts were characterized by CO and O-2 chemisorption, XRD, and P-31 MAS NMR spectroscopy. The influence of the nickel source on the metal dispersion of the catalysts was investigated. The resulting silica-supported nickel phosphide catalysts proved to be very active in the hydrodesulfurization of dibenzothiophene and the hydrodenitrogenation of o-methylaniline in the presence and absence of H2S. (c) 2005 Elsevier Inc. All rights reserved.