期刊
APPLIED CATALYSIS A-GENERAL
卷 220, 期 1-2, 页码 113-121出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0926-860X(01)00707-4
关键词
extended X-ray absorption fine structure; (EXAFS); catalysis; hydrodesulfurization (HDS)
The nature of the Co (or Ni) and Mo sulfided species obtained starting from gamma -Al2O3-supported Anderson heteropolyoxomolybdates (CoMo6 and NiMo6) has been analyzed by means of the extended X-ray absorption fine structure (EXAFS) technique with the aid of temperature-programmed reduction (TPR) and spectroscopic measurements. Results are discussed in relation to the adsorption isotherms and to the catalytic activity for the thiophene hydrodesulfurization (HDS) reaction. A comparison with traditional catalysts has been made. (C) 2001 Elsevier Science B.V. All rights reserved.
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