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Characterization of various surface Co‐sites on reduced Co–Mo/A1 2 O 3 and Ru–Co–Mo/A1 2 O 3 catalysts using IR and MS spectroscopies
Author(s) -
Xiao FengShou,
Xin Qin,
Guo XieXian
Publication year - 1992
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.19920100502
Subject(s) - chemistry , adsorption , catalysis , molybdenum , infrared spectroscopy , ruthenium , analytical chemistry (journal) , inorganic chemistry , organic chemistry
An investigation on adsorption of NO on reduced CoMo/A1 2 O 3 and Ru‐Co‐Mo/Al 2 O 3 catalysts has been performed using FT‐IR and MS spectroscopies. IR spectra of NO adsorption showed two bands at 1895 and 1800 cm −1 , and NO‐TPD profiles gave rise to several peaks at 353, 423 and 473 K, which are assigned to various Co‐sites on the surface. Compared with Co‐Mo/A1 2 O 3 , the adsorption rate, binding energy, and amount of NO adsorbed on Ru‐Co‐Mo/A1 2 O 2 are very high.