Fraction of the CoMoS phases accessible to NO in Co-Mo hydrodesulfurization catalysts.
It is established by using Co-Mo model sulfide catalysts, XAFS and FTIR that Co atoms constituting CoMoS phases are not oxidized by NO adsorption and that only 55% of the CoMoS phases is susceptible to NO adsorption even at the maximum coordinative unsaturation attainable under usual HDS reaction conditions (623-673 K).
Okamoto
Yasuaki
Y
Department of Material Science, Shimane University, Matsue 690-8504, Japan. yokamoto@ifse1.riko.shimane-u.ac.jp
Kawano
Masatoshi
M
Kubota
Takeshi
T