Topics in Catalysis

, Volume 55, Issue 14–15, pp 991–998 | Cite as

Synthesis of Nickel Phosphide Nanorods as Catalyst for the Hydrotreating of Methyl Oleate

  • Yongxing Yang
  • Cristina Ochoa-Hernández
  • Patricia Pizarro
  • Víctor A. de la Peña O’Shea
  • Juan M. Coronado
  • David P. Serrano
Original Paper


Arrays of nickel phosphide nanorods were successfully synthesized by nanocasting using mesostructured silica SBA-15 as a hard template (HT-Ni2P). After temperature-programmed reduction of the phosphate precursor infiltrated within the pore walls of SBA-15, the unsupported material was obtained by removing the silica matrix with diluted HF. The pore channel of the SBA-15 template stabilizes the Ni2P particles, preventing sintering after the high reduction temperature and shaping their elongated morphology. Moreover, HT-Ni2P catalyst shows an improvement in the textural properties with a significantly higher surface area than the reference sample synthesized in the absence of template. X-ray diffraction revealed that the only crystalline phase present in this material was Ni2P. On the other hand, transmission electron microscopy shows that the catalyst is mainly constituted by agglomerates of nanorods. Through EDX microanalysis the efficient removal of silicon was confirmed. Under hydrotreating conditions, nanorods of Ni2P show a fourfold enhancement in the conversion of methyl oleate with respect to conventional Ni2P synthesized in absence of hard template. Nevertheless, when these data are normalized to surface area, the specific activity of HT-Ni2P nanorods is significantly lower than that of the conventionally prepared sample. Differences in selectivity were also observed as Ni2P nanorods favored the decarboxylation reaction leading to a higher yield of n-heptadecane.


Nickel phosphide Nanorods Nanocasting Mesoporous Hydrodeoxygenation Vegetable oil Green diesel 



This study has received financial support of the RESTOENE and LIGCATUP program funded by, respectively, the Consejería de Educación of Comunidad de Madrid and the Spanish Ministry of Science and Competiveness. YXY and VPO thank the financial support of, respectively, AMAROUT (FP7-PEOPLE) and “Ramón y Cajal” (MICINN) programs.


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Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  • Yongxing Yang
    • 1
  • Cristina Ochoa-Hernández
    • 1
  • Patricia Pizarro
    • 1
    • 2
  • Víctor A. de la Peña O’Shea
    • 1
  • Juan M. Coronado
    • 1
  • David P. Serrano
    • 1
    • 2
  1. 1.Thermochemical Processes UnitIMDEA Energy InstituteMadridSpain
  2. 2.Department of Chemical and Energy Technology, ESCETRey Juan Carlos UniversityMadridSpain

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