Can Ni phosphides become viable hydroprocessing catalysts

摘要: We prepared higher surface area nickel phosphides than are normally found by reducing phosphate. To do this, we hydrothermally synthesized Ni hydroxy phosphite precursors with low levels of molybdenum substitution. The substitution increases the these precursors. During pretreatment in a sulfiding atmosphere (such as H2S/H2) dispersed islands MoS2 segregate from precursor and provide pathway for H2 dissociation that allows reduction to phosphide at substantially lower temperatures absence MoS2. results reported here show create comparable activity conventional supported sulfide catalysts, one would have synthesize areas exceeding 400 m2/g (i.e. nanoparticles less 30 A lateral dimension).