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Indexed by:期刊论文

Date of Publication:2016-03-05

Journal:CATALYSIS COMMUNICATIONS

Included Journals:SCIE、EI

Volume:77

Page Number:13-17

ISSN No.:1566-7367

Key Words:Nickel phosphide; Hypophosphite; Ni2P/Al2O3 catalysts; Hydrodesulfurization

Abstract:Bulk Ni2P and Al2O3-supported Ni2P were prepared at low phosphidation temperature (300 degrees C) from Ni9S8 and NH4H2PO2, which were separated to avoid the formation of phosphate inside the support pores. The unsupported product phases were characterized by XRD and the Ni2P/Al2O3 catalysts by XRD, BET and TEM. A 10 wt% Ni2P/Al2O3 catalyst, made by the Ni(NO3)(2)-NiO-Ni9S8-Ni2P path at a P/Ni ratio of 3, showed the highest activity in the hydrodesulfurization of dibenzothiophene. By separating the nickel and hypophosphite sources, Ni2P/Al2O3 catalysts could be obtained at low phosphidation temperature and with low degree of blockage of pores by surplus phosphorus. (C) 2016 Elsevier B.V. All rights reserved.