SCHEDULED MAINTENANCE
Improving the hydrodesulfurization performance of the sulfur-resistant intermetallic Ni2Si based on a MOF-derived route†
Xiao
Chen 
*b
and
Changhai
Liang
*b
*b
and
Changhai
Liang
*b
Abstract
Carbon-supported intermetallic nickel silicide (Ni2Si/C) as a non-sulfide catalyst derived from Ni-MOF-74 presents high activity and sulphur-resistance in the hydrodesulfurization (HDS) of dibenzothiophene (DBT). The Ni2Si/C catalyst possesses a large specific surface area (168 m2 g−1), small crystallite size (12 nm) and high electronic density of the nickel active sites; thus, they demonstrate HDS properties breaking the metal silicide bottleneck derived from the microelectronic industry during catalysis. Due to the strong electron-donating effect between Ni and Si and the modification effect by a porous carbon matrix, the Ni2Si/C catalyst exhibits an outstanding stability during DBT HDS after 120 h of stability testing.
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