Characterization of Silica-Supported Molybdenum and Tungsten Phosphide Hydroprocessing Catalysts by 31P Nuclear Magnetic Resonance Spectroscopy

2002 ◽  
Vol 207 (2) ◽  
pp. 256-265 ◽  
Author(s):  
P. Clark ◽  
X. Wang ◽  
S.T. Oyama
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