Concerning the interpretation of Al-27 MAS-NMR spectra of Mo and NiMo catalysts on Al-containing MCM-41 supports - A reply to the comment by X. Carrier and M. Che on "Ni and Mo interaction with AI-containing MCM-41 support and its effect on the catalytic behavior in DBT hydrodesulfurization" [Appl. Catal. A 240 (2003) 29-40]

Klimova T

Applied Catalysis A: General, Vol.253, No.1, 321-325, 2003

DOI10.1016/S0926-860X(03)00504-0 Export Citation

Concerning the interpretation of Al-27 MAS-NMR spectra of Mo and NiMo catalysts on Al-containing MCM-41 supports - A reply to the comment by X. Carrier and M. Che on "Ni and Mo interaction with AI-containing MCM-41 support and its effect on the catalytic behavior in DBT hydrodesulfurization" [Appl. Catal. A 240 (2003) 29-40]

Klimova T

Anew interpretation for the NMR signal observed at + 16ppm in the Al-27 MAS-NMR spectra of Mo and NiMo/Al-MCM-41 catalysts was done. This signal was assigned to an Anderson-type heteropolymolybdate [Al(OH)(6)Mo6O18](3-), which can be formed during impregnation step of the catalyst preparation, as well as a result of hydration of Al-2(MoO4)(3) in calcined Mo and NiMo/Al-MCM-41 catalysts. (C) 2003 Elsevier B.V. All rights reserved.

Keywords:Al-27 MAS-NMR;Anderson-type heteropolyanion;Al-MCM-41;Mo and NiMo catalysts