X‐Ray Spectroscopic Studies of the Surface Species in CoMoAl 2 O 3  Hydrodesulphurization Catalysts | Zendy

Sarode P. R. | Zendy; Sankar G. | Zendy; Srinivasan A. | Zendy; Vasudevan S. | Zendy; Rao C. N. R. | Zendy; Thomas J. M. | Zendy

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X‐Ray Spectroscopic Studies of the Surface Species in CoMoAl 2 O 3 Hydrodesulphurization Catalysts

Author(s) -

Sarode P. R.,

Sankar G.,

Srinivasan A.,

Vasudevan S.,

Rao C. N. R.,

Thomas J. M.

Publication year - 1984

Publication title -

angewandte chemie international edition in english

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 0570-0833

DOI - 10.1002/anie.198403231

Subject(s) - hydrodesulfurization , xanes , catalysis , extended x ray absorption fine structure , sulfur , inorganic chemistry , chemistry , cobalt , ion , molybdenum , thiophene , materials science , absorption spectroscopy , spectroscopy , organic chemistry , physics , quantum mechanics

Octahedrally coordinated Co II and Mo IV species are present on the surfaces of sulfided CoMoAl 2 O 3 catalysts used for hydrodesulfurization. They were characterized by XPE, EXAFS and XANES data. An “excess” of sulfur in the surface species can be explained in terms of the presence of S 2 2⊖ions. Disulfide bridges could play a role in the hydrodesulfurization.

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