Electron Tomography Reveals the Active Phase–Support Interaction in Sulfidic Hydroprocessing Catalysts
作者： Sonja Eijsbouts , Xuanqi Li , Jana Juan-Alcaniz , Leon C. A. van den Oetelaar , Jaap A. Bergwerff
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摘要: Conventional two-dimensional (2D) transmission electron microscopy of sulfidic hydroprocessing catalysts can be deceiving and give the impression that parts support are overloaded with active phase. High-angle annular dark field scanning tomography reveals details on morphology MoS2 crystallites their interaction Al2O3 TiO2 particles. The three-dimensional (3D) reconstruction shows phase is mainly present as single slabs various shapes aligned support. It becomes clear surface particles is, in fact, only partly covered by pores remain accessible for reactant molecules.
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Maria Girleanu, Susana Lopes Silva, Dris Ihiawakrim, Alexandra Chaumonnot, Audrey Bonduelle-Skrzypczak, Fréderic Lefebvre, Véronique Dufaud, Anne-Sophie Gay, Ovidiu Ersen, HAADF-STEM high-resolution study of nanometric MoS2 inside mesoporous SBA-15 Microporous and Mesoporous Materials. ,vol. 217, pp. 190- 195 ,(2015) , 10.1016/J.MICROMESO.2015.06.021
S. Eijsbouts, J.J.L. Heinerman, H.J.W. Elzerman, MoS2 structures in high-activity hydrotreating catalysts Applied Catalysis A: General. ,vol. 105, pp. 53- 68 ,(1993) , 10.1016/0926-860X(93)85133-A
Yuanyuan Zhu, Quentin M. Ramasse, Michael Brorson, Poul G. Moses, Lars P. Hansen, Henrik Topsøe, Christian F. Kisielowski, Stig Helveg, Location of Co and Ni promoter atoms in multi-layer MoS2 nanocrystals for hydrotreating catalysis Catalysis Today. ,vol. 261, pp. 75- 81 ,(2016) , 10.1016/J.CATTOD.2015.08.053
Krijn P. de Jong, Leon C. A. van den Oetelaar, Eelco T. C. Vogt, Sonja Eijsbouts, Abraham J. Koster, Heiner Friedrich, Petra E. de Jongh, High-Resolution Electron Tomography Study of an Industrial Ni-Mo/γ-Al2O3 Hydrotreating Catalyst Journal of Physical Chemistry B. ,vol. 110, pp. 10209- 10212 ,(2006) , 10.1021/JP061584F
R.M. Stockmann, H.W. Zandbergen, A.D. van Langeveld, J.A. Moulijn, Investigation of MoS2 on γ-Al2O3 by HREM with atomic resolution Journal of Molecular Catalysis A-chemical. ,vol. 102, pp. 147- 161 ,(1995) , 10.1016/1381-1169(95)00111-5
Anabela Nogueira, Raja Znaiguia, Denis Uzio, Pavel Afanasiev, Gilles Berhault, Curved nanostructures of unsupported and Al2O3-supported MoS2 catalysts: Synthesis and HDS catalytic properties Applied Catalysis A-general. ,vol. 429, pp. 92- 105 ,(2012) , 10.1016/J.APCATA.2012.04.013
G.Murali Dhar, B.N Srinivas, M.S Rana, Manoj Kumar, S.K Maity, Mixed oxide supported hydrodesulfurization catalysts—a review Catalysis Today. ,vol. 86, pp. 45- 60 ,(2003) , 10.1016/S0920-5861(03)00403-6
D COSTA, C ARROUVEL, M BREYSSE, H TOULHOAT, P RAYBAUD, Edge wetting effects of γ-Al2O3 and anatase-TiO2 supports by MoS2 and CoMoS active phases: A DFT study Journal of Catalysis. ,vol. 246, pp. 325- 343 ,(2007) , 10.1016/J.JCAT.2006.12.007
Ilke Arslan, John C. Walmsley, Erling Rytter, Edvard Bergene, Paul A. Midgley, Toward Three-Dimensional Nanoengineering of Heterogeneous Catalysts Journal of the American Chemical Society. ,vol. 130, pp. 5716- 5719 ,(2008) , 10.1021/JA710299H
S EIJSBOUTS, L VANDENOETELAAR, R VANPUIJENBROEK, MoS2 morphology and promoter segregation in commercial Type 2 Ni–Mo/Al2O3 and Co–Mo/Al2O3 hydroprocessing catalysts Journal of Catalysis. ,vol. 229, pp. 352- 364 ,(2005) , 10.1016/J.JCAT.2004.11.011