P
Paul Clark
Researcher at Virginia Tech
Publications - 5
Citations - 706
Paul Clark is an academic researcher from Virginia Tech. The author has contributed to research in topics: Hydrodenitrogenation & Phosphide. The author has an hindex of 5, co-authored 5 publications receiving 671 citations.
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Journal ArticleDOI
Synthesis, Characterization, and Hydrotreating Activity of Several Iron Group Transition Metal Phosphides
TL;DR: A series of iron, cobalt, and nickel metal phosphides of chemical formula Fe2P, CoP, and Ni2P with specific surface areas of around 3 m2 g−1 were synthesized by means of temperature-programmed reduction (TPR) of the corresponding phosphates as mentioned in this paper.
Journal ArticleDOI
Alumina-supported molybdenum phosphide hydroprocessing catalysts
Paul Clark,S. Ted Oyama +1 more
TL;DR: In this article, a temperature-programmed reduction of alumina-supported molybdenum phosphate precursors was performed by using aqueous molar solutions of ammonium paramolybdate and ammonium phosphate (Mo/P=1/1).
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Synthesis and Activity of a New Catalyst for Hydroprocessing: Tungsten Phosphide
Paul Clark,Wei Li,S. Ted Oyama +2 more
TL;DR: A tungsten phosphide, WP, hydrotreating catalyst was prepared by temperature-programmed reduction of an X-ray amorphous Tungsten phosphate at a heating rate of 0.0167 K s−1 and a 2-h soak at the final temperature of 938 K.
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Characterization of Silica-Supported Molybdenum and Tungsten Phosphide Hydroprocessing Catalysts by 31P Nuclear Magnetic Resonance Spectroscopy
TL;DR: Silica-supported molybdenum phosphide, MoP/SiO 2, and tungsten phosphide were prepared and characterized for their catalytic activity in hydrodenitrogenation (HDN) and hydrodesulfurization (HDS).
Journal ArticleDOI
Push–Pull Mechanism of Hydrodenitrogenation over Silica-Supported MoP, WP, and MoS2 Hydroprocessing Catalysts
TL;DR: The mechanism of liquid-phase catalytic hydrodenitrogenation at 3.1 MPa on silica-supported molybdenum phosphide, MoP/SiO2, and tungsten phosphide was studied using a series of pentylamines of different structures as mentioned in this paper.