Effect of supports on the supported Ni2P catalysts prepared by the phosphidation using triphenylphosphine in liquid phase
Effect of supports on the supported Ni2P catalysts prepared by the phosphidation using triphenylphosphine in liquid phase
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载体对三苯基膦液相磷化制备负载型Ni2P催化剂的影响
DOI：
10.1016/j.cej.2015.03.129
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发表时间：
2015-09
影响因子：
15.1
通讯作者：
Jianyi Shen
中科院分区：
文献类型：
--
作者：
Junen Wang;Yuchuan Fu;Hui Chen;Jianyi Shen
用三苯基膦对Ni/Al_2O_3、Ni/MgAlO和Ni/MgO进行液相磷化，制备了Ni_2P/Al_2O_3、Ni_2P/MgAlO和Ni_2P/MgO催化剂，并与文献报道的Ni_2P/SiO_2催化剂进行了比较。结果表明，采用723 K预还原、443 K磷化的方法制备的Ni 2 P/Al 2 O3和Ni 2 P/MgAlO催化剂具有较高的加氢处理活性。这两种催化剂具有小而均匀分布的Ni 2 P颗粒（分别为6.5和8.3 nm）和高的CO吸收（分别为305和269 μmol/g）。加氢反应后，催化剂中的Ni 2 P相保留，Ni 2 P颗粒尺寸略有增加，分别为6.9和9.2nm。而在Ni_2 P/Al_2 O_3和Ni_2 P/MgAlO催化剂上，由于S的引入，CO的吸附量分别降低到68和74 μmol/g。结果表明，Ni 2 P/Al 2 O3、Ni 2 P/MgAlO和Ni 2 P/SiO2催化剂上二苯并噻吩加氢脱硫的TOF值相近，表明这三种载体对加氢脱硫活性没有影响，而Ni 2 P/MgAlO催化剂上四氢萘加氢制十氢萘的TOF值明显高于Ni 2 P/SiO2催化剂。表明Ni 2 P/MgAlO可能比Ni 2 P/SiO2更适合于加氢处理反应。
Ni2P/Al2O3, Ni2P/MgAlO and Ni2P/MgO catalysts were prepared by the phosphidation of corresponding Ni/Al2O3, Ni/MgAlO and Ni/MgO with triphenylphosphine in liquid phase and compared with the previously reported Ni2P/SiO2catalyst. It was found that the Ni2P/Al2O3and Ni2P/MgAlO prepared by the pre-reduction at 723 K followed by the phosphidation at 443 K exhibited the high activities for the hydrotreating reactions. The two catalysts possessed small and homogeneously distributed Ni2P particles (6.5 and 8.3 nm, respectively) with high CO uptakes (305 and 269 μmol/g, respectively). After the hydrotreating reactions, the Ni2P phase in the catalysts remained and the sizes of Ni2P particles increased a little to 6.9 and 9.2 nm, respectively. However, the CO uptakes on the used Ni2P/Al2O3and Ni2P/MgAlO catalysts were greatly decreased to 68 and 74 μmol/g, respectively, owing to the incorporation of S into the Ni2P surfaces. According to the CO uptakes on the used catalysts, it was found that the TOF values of hydrodesulphurization of dibenzothiophene on the Ni2P/Al2O3, Ni2P/MgAlO and Ni2P/SiO2were similar, indicating that these supports did not affect the HDS activity, while the TOF values of hydrogenation of tetralin to decalin were significantly higher on Ni2P/MgAlO than on Ni2P/SiO2, indicating that Ni2P/MgAlO might be better than Ni2P/SiO2for the hydrotreating reactions.
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影响因子：
--
作者：
Guojun Shi;Jianyi Shen
通讯作者：
Guojun Shi;Jianyi Shen
影响因子：
7.3
作者：
A. Nelson;Mingyong Sun;A. Junaid
通讯作者：
A. Nelson;Mingyong Sun;A. Junaid
影响因子：
15
作者：
Popczun, Eric J.;McKone, James R.;Schaak, Raymond E.
通讯作者：
Schaak, Raymond E.
影响因子：
7.3
作者：
M. Santikunaporn;J. Herrera;S. Jongpatiwut;D. Resasco;W. Alvarez;E. L. Sughrue
通讯作者：
M. Santikunaporn;J. Herrera;S. Jongpatiwut;D. Resasco;W. Alvarez;E. L. Sughrue
影响因子：
3.7
作者：
Jie Zhao;Hui Chen;Jun Xu;Jianyi Shen
通讯作者：
Jie Zhao;Hui Chen;Jun Xu;Jianyi Shen