Nanoscale control of the nickel promoting interaction with WS2/Al2O3 using designed Ni-containing Keggin polyoxotungstates – a rationale approach for synthesizing HDS catalysts - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Communication Dans Un Congrès Année : 2022

Nanoscale control of the nickel promoting interaction with WS2/Al2O3 using designed Ni-containing Keggin polyoxotungstates – a rationale approach for synthesizing HDS catalysts

A. Lopez-Benitez
  • Fonction : Auteur
A. Guevara-Lara

Résumé

The following study opens the way for the comprehension of the link between the nanoscale structure of Ni-containing POWs and their final HDS activity by showing that two parameters influence the propensity to form a promoted phase in NiW/Al2O3 catalysts: 1) the openness of Ni localization allowing to form a highly intrinsic active NiWS promoted phase and 2) the initial degree of contact between Ni and W influencing the sulfidation ability. A rationalized approach correlating localized configuration of Ni inside POW precursor and final HDS properties can be achieved offering new possibilities to use POMs for a variety of catalytic applications.
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Dates et versions

hal-03675716 , version 1 (23-05-2022)

Identifiants

  • HAL Id : hal-03675716 , version 1

Citer

A. Lopez-Benitez, A. Guevara-Lara, G. Berhault. Nanoscale control of the nickel promoting interaction with WS2/Al2O3 using designed Ni-containing Keggin polyoxotungstates – a rationale approach for synthesizing HDS catalysts. NAM27, May 2022, New York, United States. ⟨hal-03675716⟩
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