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Toulhoat H. The optimal heterogeneous catalyst for an acid-base reaction. J Catal 2022. [DOI: 10.1016/j.jcat.2022.06.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Abstract
We show that the optimal catalyst for a given reaction equalizes the free energies of intermediates in an adsorbed phase, and in consequence is described by a surface energy proportional to the enthalpy of this reaction.
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Affiliation(s)
- Hervé Toulhoat
- Sorbonne Université
- UPMC
- CNRS
- Laboratoire de Réactivité de Surface
- Paris
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3
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Gomonaj V, Toulhoat H. Selective Oxidation of Methane to Formaldehyde Catalyzed by Phosphates: Kinetic Description by Bond Strengths and Specific Total Acidities. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02629] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vasilij Gomonaj
- National University of Uzhgorod, Department of Physical and Colloid Chemistry, Pidhirna Street, 46, Uzhgorod 380, Ukraine
| | - Hervé Toulhoat
- IFP Energies nouvelles, 1 & 4 avenue de Bois-Préau, 92852 Rueil-Malmaison, France
- Sorbonne Université, UPMC Univ Paris 06, UMR CNRS 7197, Laboratoire de Réactivité de Surface, Tour 43-33, 3ème étage,
Case 178, 4 Place Jussieu, F-75252, Paris, France
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Pasha FA, Basset JM, Toulhoat H, de Bruin T. DFT Study on the Impact of the Methylaluminoxane Cocatalyst in Ethylene Oligomerization Using a Titanium-Based Catalyst. Organometallics 2015. [DOI: 10.1021/om5008874] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Farhan Ahmad Pasha
- IFP Energies Nouvelles, 1-4
Avenue de Bois Préau, 92852, Rueil-Malmaison, France
- KAUST
Catalysis Research Center, King Abdullah University of Science and Technology, Thuwal 23955-6900 Saudi Arabia
| | - Jean-Marie Basset
- KAUST
Catalysis Research Center, King Abdullah University of Science and Technology, Thuwal 23955-6900 Saudi Arabia
| | - Hervé Toulhoat
- IFP Energies Nouvelles, 1-4
Avenue de Bois Préau, 92852, Rueil-Malmaison, France
| | - Theodorus de Bruin
- IFP Energies Nouvelles, 1-4
Avenue de Bois Préau, 92852, Rueil-Malmaison, France
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Raybaud P, Chizallet C, Mager-Maury C, Digne M, Toulhoat H, Sautet P. From γ-alumina to supported platinum nanoclusters in reforming conditions: 10years of DFT modeling and beyond. J Catal 2013. [DOI: 10.1016/j.jcat.2013.08.015] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Corvaisier F, Schuurman Y, Fecant A, Thomazeau C, Raybaud P, Toulhoat H, Farrusseng D. Periodic trends in the selective hydrogenation of styrene over silica supported metal catalysts. J Catal 2013. [DOI: 10.1016/j.jcat.2013.08.009] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Valayannopoulos V, Bakouh N, Mazzuca M, Nonnenmacher L, Hubert L, Makaci FL, Chabli A, Salomons GS, Mellot-Draznieks C, Brulé E, de Lonlay P, Toulhoat H, Munnich A, Planelles G, de Keyzer Y. Functional and electrophysiological characterization of four non-truncating mutations responsible for creatine transporter (SLC6A8) deficiency syndrome. J Inherit Metab Dis 2013; 36:103-12. [PMID: 22644605 DOI: 10.1007/s10545-012-9495-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2012] [Revised: 04/24/2012] [Accepted: 05/03/2012] [Indexed: 12/27/2022]
Abstract
Intellectual disability coupled with epilepsy are clinical hallmarks of the creatine (Cr) transporter deficiency syndrome resulting from mutations in the SLC6A8 gene. So far characterization of pathogenic mutations of SLC6A8 has been limited to Cr uptake. The aim of our study was to characterize the electrogenic and pharmacological properties of non truncating SLC6A8 mutations identified in patients presenting variable clinical severity. Electrophysiological and pharmacological properties of four mutants (including two novel ones) were studied in X. laevis oocyte expression system. Creatine uptake was assessed with [(14)C]-Cr in X. laevis and patients' fibroblasts. Subcellular localization was determined by immunofluorescence and western blot. All mutants were properly targeted to the plasma membrane in both systems. Mutations led to the complete loss of both electrogenic and transport activities in X. laevis and Cr uptake in patients' fibroblasts. Among the Cr analogs tested, guanidinopropionate induced an electrogenic activity with the normal SLC6A8 transporter similar to creatine whereas a phosphocreatine derivative, PCr-Mg-CPLX, resulted in partial activity. SLC6A8 mutants displayed no electrogenic activity with all Cr analogs tested in X. laevis oocytes. Although the mutations altered various domains of SLC6A8 Cr uptake and electrogenic properties were completely inhibited and could not be dissociated. Besides the metabolic functions of Cr, the loss of SLC6A8 electrogenic activity, demonstrated here for the first time, may also play a role in the altered brain functions of the patients.
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Affiliation(s)
- Vassili Valayannopoulos
- INSERM U781 and Paris-Descartes University, Necker-Enfants Malades Hospital, 149 rue de Sèvres, 75743 Paris cedex 15, France
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Boudene Z, De Bruin T, Toulhoat H, Raybaud P. A QSPR Investigation of Thermal Stability of [Al(CH3)O]n Oligomers in Methylaluminoxane Solution: The Identification of a Geometry-Based Descriptor. Organometallics 2012. [DOI: 10.1021/om300916q] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zoubeyr Boudene
- IFP Energies nouvelles, 1 & 4 Avenue de Bois Préau, 92852 Rueil-Malmaison, France
| | - Theodorus De Bruin
- IFP Energies nouvelles, 1 & 4 Avenue de Bois Préau, 92852 Rueil-Malmaison, France
| | - Hervé Toulhoat
- IFP Energies nouvelles, 1 & 4 Avenue de Bois Préau, 92852 Rueil-Malmaison, France
| | - Pascal Raybaud
- IFP Energies nouvelles, Rond-point de l’Echangeur de Solaize, BP 3, 69360, Solaize,
France
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9
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Mellot-Draznieks C, Valayannopoulos V, Chrétien D, Munnich A, de Lonlay P, Toulhoat H. Relative Enzymatic Activity Levels from In Silico Mutagenesis. ACS Catal 2012. [DOI: 10.1021/cs300538z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Caroline Mellot-Draznieks
- IFP Energies nouvelles, 1&4 Avenue de Bois-Préau, 92852, Rueil-Malmaison Cedex, France
- CNRS, Laboratoire de Chimie
des Processus Biologiques, Collège de France, Paris, France
| | - Vassili Valayannopoulos
- Centre de Référence
des Maladies Héréditaires du Métabolisme, Université de Paris Descartes, Hôpital
des Enfants-Malades, Paris, France
- Unité INSERM U-781, Hôpital des Enfants-Malades, Paris, France
| | | | - Arnold Munnich
- Centre de Référence
des Maladies Héréditaires du Métabolisme, Université de Paris Descartes, Hôpital
des Enfants-Malades, Paris, France
| | - Pascale de Lonlay
- Centre de Référence
des Maladies Héréditaires du Métabolisme, Université de Paris Descartes, Hôpital
des Enfants-Malades, Paris, France
- Unité INSERM U-781, Hôpital des Enfants-Malades, Paris, France
| | - Hervé Toulhoat
- IFP Energies nouvelles, 1&4 Avenue de Bois-Préau, 92852, Rueil-Malmaison Cedex, France
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Raybaud P, Chizallet C, Toulhoat H, Sautet P. Comment on “Electronic properties and charge transfer phenomena in Pt nanoparticles on γ-Al2O3: size, shape, support, and adsorbate effects” by F. Behafarid et al., Phys. Chem. Chem. Phys., 2012, 14, 11766–11779. Phys Chem Chem Phys 2012; 14:16773-4. [DOI: 10.1039/c2cp43050a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ottolenghi C, Hubert L, Allanore Y, Brassier A, Altuzarra C, Mellot-Draznieks C, Bekri S, Goldenberg A, Veyrieres S, Boddaert N, Barbier V, Valayannopoulos V, Slama A, Chrétien D, Ricquier D, Marret S, Frebourg T, Rabier D, Munnich A, de Keyzer Y, Toulhoat H, de Lonlay P. Clinical and biochemical heterogeneity associated with fumarase deficiency. Hum Mutat 2011; 32:1046-52. [PMID: 21560188 DOI: 10.1002/humu.21534] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Accepted: 05/03/2011] [Indexed: 01/27/2023]
Abstract
Fumarase deficiency (FD), caused by biallelic alteration of the Fumarase Hydratase gene (FH), and a rare metabolic disorder that affects the Krebs cycle, causes severe neurological impairment and fumaric aciduria. Less than 30 unrelated cases are known to date. In addition, heterozygous mutations of the FH gene are responsible for hereditary leiomyomatosis and renal cell cancer (HLRCC). We report three additional patients with dramatically different clinical presentations of FD and novel missense mutations in the FH gene. One patient had severe neonatal encephalopathy, polymicrogyria, <1% enzyme activity, and mildly increased levels of urinary fumarate. The second patient had microcephaly, mental retardation, 20% of fumarase activity, and intermediate levels of urinary fumarate. The third patient had mild mental retardation, polymicrogyria, 42-61% enzyme activity in different cell types and massive amounts of urinary fumarate. In silico analysis predicted minor yet significant structural changes in the encoded proteins. The nuclear translocation of hypoxia-inducible factor (HIF)-1alpha (HIF1A) in cultured fibroblasts was similar to controls. These results extend the range of clinical and biochemical variation associated with FD, supporting the notion that patients with moderate increases in fumarate excretion should be investigated for this disease. The tumoral risk in the patients and their relatives requires adequate screening protocols.
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Affiliation(s)
- Chris Ottolenghi
- Service de Biochimie Métabolique, Hôpital Necker-Enfants Malades, Université Paris Descartes et Assistance Publique Hôpitaux de Paris, Paris, France
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Prodhomme PY, Raybaud P, Toulhoat H. Free-energy profiles along reduction pathways of MoS2 M-edge and S-edge by dihydrogen: A first-principles study. J Catal 2011. [DOI: 10.1016/j.jcat.2011.03.017] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Toulhoat H, Lontsi Fomena M, de Bruin T. Computational Study of the Effect of Confinement within Microporous Structures on the Activity and Selectivity of Metallocene Catalysts for Ethylene Oligomerization. J Am Chem Soc 2011; 133:2481-91. [DOI: 10.1021/ja105950z] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hervé Toulhoat
- Direction Scientifique and ‡Direction Chimie et Physico-chimie Appliquées, IFP Energies nouvelles, 1 et 4 avenue de Bois-Préau, 92852 Rueil-Malmaison, France
| | - Mireille Lontsi Fomena
- Direction Scientifique and ‡Direction Chimie et Physico-chimie Appliquées, IFP Energies nouvelles, 1 et 4 avenue de Bois-Préau, 92852 Rueil-Malmaison, France
| | - Theodorus de Bruin
- Direction Scientifique and ‡Direction Chimie et Physico-chimie Appliquées, IFP Energies nouvelles, 1 et 4 avenue de Bois-Préau, 92852 Rueil-Malmaison, France
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Dinter N, Rusanen M, Raybaud P, Kasztelan S, Silva PD, Toulhoat H. Temperature-programmed reduction of unpromoted MoS2-based hydrodesulfurization catalysts: First-principles kinetic Monte Carlo simulations and comparison with experiments. J Catal 2010. [DOI: 10.1016/j.jcat.2010.07.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Gachet C, Paulus R, De Mourgues L, Durand C, Toulhoat H. Unsupported Ni-mo Sulfide Catalysts: Relation Between the HDS and Hydrogenation Activities and Some Structural Properties. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bscb.19840930809] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Kasztelan S, Toulhoat H, Grimblot J, Bonnelle JP. A Geometrical Model of Hydrotreating Catalysts - Prediction of Catalytic Activity Variations with Composition. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bscb.19840930821] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Breysse M, Bachelier J, Bonnelle JP, Cattenot M, Cornet D, Décamp T, Duchet JC, Durand R, Engelhard P, Frety R, Gachet C, Genested P, Grimblot J, Gueguen C, Kasztelan S, Lacroix M, Lavalley JC, Leclercq C, Moreau C, De Mourgues L, Olivé JL, Payen E, Portefaix JL, Toulhoat H, Vrinat M. New Developments in Hydrotreating Catalysis : Characterization and Optimization of Niw/A12O3 Catalysts. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bscb.19870961101] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Guernalec N, Geantet C, Cseri T, Vrinat M, Toulhoat H, Raybaud P. Compensation effect and volcano curve in toluene hydrogenation catalyzed by transition metal sulfides. Dalton Trans 2010; 39:8420-2. [DOI: 10.1039/c001069c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Dinter N, Rusanen M, Raybaud P, Kasztelan S, Silva PD, Toulhoat H. Temperature-programed reduction of unpromoted MoS2-based hydrodesulfurization catalysts: Experiments and kinetic modeling from first principles. J Catal 2009. [DOI: 10.1016/j.jcat.2009.07.017] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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22
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Fayet G, Raybaud P, Toulhoat H, de Bruin T. Iron bis(arylimino)pyridine precursors activated to catalyze ethylene oligomerization as studied by DFT and QSAR approaches. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.theochem.2008.10.048] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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23
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Chizallet C, Digne M, Arrouvel C, Raybaud P, Delbecq F, Costentin G, Che M, Sautet P, Toulhoat H. Insights into the Geometry, Stability and Vibrational Properties of OH Groups on γ-Al2O3, TiO2-Anatase and MgO from DFT Calculations. Top Catal 2009. [DOI: 10.1007/s11244-009-9262-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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de Bruin T, Raybaud P, Toulhoat H. A DFT Chemical Descriptor to Predict the Selectivity in α-Olefins in the Catalytic Metallacyclic Oligomerization Reaction of Ethylene According to the (Hemi)labile Ligand Coordinating to Titanium. Organometallics 2008. [DOI: 10.1021/om800326r] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Theodorus de Bruin
- IFP, Direction Chimie et Physico-Chimie Appliquées, 1 & 4 Avenue de Bois Préau, 92852 Rueil-Malmaison Cedex, France, IFP, Direction Catalyse et Séparation, Rond-point de l′échangeur de Solaize, BP 3 69360 Solaize, France, and IFP, Direction Scientifique, 1 & 4 Avenue de Bois Préau, 92852 Rueil-Malmaison Cedex, France
| | - Pascal Raybaud
- IFP, Direction Chimie et Physico-Chimie Appliquées, 1 & 4 Avenue de Bois Préau, 92852 Rueil-Malmaison Cedex, France, IFP, Direction Catalyse et Séparation, Rond-point de l′échangeur de Solaize, BP 3 69360 Solaize, France, and IFP, Direction Scientifique, 1 & 4 Avenue de Bois Préau, 92852 Rueil-Malmaison Cedex, France
| | - Hervé Toulhoat
- IFP, Direction Chimie et Physico-Chimie Appliquées, 1 & 4 Avenue de Bois Préau, 92852 Rueil-Malmaison Cedex, France, IFP, Direction Catalyse et Séparation, Rond-point de l′échangeur de Solaize, BP 3 69360 Solaize, France, and IFP, Direction Scientifique, 1 & 4 Avenue de Bois Préau, 92852 Rueil-Malmaison Cedex, France
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Affiliation(s)
- Mathieu Digne
- Direction Physique et Analyse, Direction Catalyse et Séparation, IFP, Rond-point de l’échangeur de Solaize, BP 3, 69390 Solaize, France, Université de Lyon, Institut de Chimie, Laboratoire de Chimie, Ecole normale supérieure de Lyon, CNRS 46, allée d’Italie, 69364 Lyon cedex 07, France, and Direction Scientifique, IFP, 1-4 avenue de Bois-Préau, 92852 Rueil-Malmaison cedex, France
| | - Pascal Raybaud
- Direction Physique et Analyse, Direction Catalyse et Séparation, IFP, Rond-point de l’échangeur de Solaize, BP 3, 69390 Solaize, France, Université de Lyon, Institut de Chimie, Laboratoire de Chimie, Ecole normale supérieure de Lyon, CNRS 46, allée d’Italie, 69364 Lyon cedex 07, France, and Direction Scientifique, IFP, 1-4 avenue de Bois-Préau, 92852 Rueil-Malmaison cedex, France
| | - Philippe Sautet
- Direction Physique et Analyse, Direction Catalyse et Séparation, IFP, Rond-point de l’échangeur de Solaize, BP 3, 69390 Solaize, France, Université de Lyon, Institut de Chimie, Laboratoire de Chimie, Ecole normale supérieure de Lyon, CNRS 46, allée d’Italie, 69364 Lyon cedex 07, France, and Direction Scientifique, IFP, 1-4 avenue de Bois-Préau, 92852 Rueil-Malmaison cedex, France
| | - Denis Guillaume
- Direction Physique et Analyse, Direction Catalyse et Séparation, IFP, Rond-point de l’échangeur de Solaize, BP 3, 69390 Solaize, France, Université de Lyon, Institut de Chimie, Laboratoire de Chimie, Ecole normale supérieure de Lyon, CNRS 46, allée d’Italie, 69364 Lyon cedex 07, France, and Direction Scientifique, IFP, 1-4 avenue de Bois-Préau, 92852 Rueil-Malmaison cedex, France
| | - Hervé Toulhoat
- Direction Physique et Analyse, Direction Catalyse et Séparation, IFP, Rond-point de l’échangeur de Solaize, BP 3, 69390 Solaize, France, Université de Lyon, Institut de Chimie, Laboratoire de Chimie, Ecole normale supérieure de Lyon, CNRS 46, allée d’Italie, 69364 Lyon cedex 07, France, and Direction Scientifique, IFP, 1-4 avenue de Bois-Préau, 92852 Rueil-Malmaison cedex, France
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Raybaud P, Costa D, Corral Valero M, Arrouvel C, Digne M, Sautet P, Toulhoat H. First principles surface thermodynamics of industrial supported catalysts in working conditions. J Phys Condens Matter 2008; 20:064235. [PMID: 21693896 DOI: 10.1088/0953-8984/20/6/064235] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Ever stronger environmental concerns prompt the research in the area of heterogeneous catalysis to play an ever more crucial role to produce ever cleaner fuel from the refining of petroleum effluents. The catalytic active phase is often used in a dispersed state over a porous oxide material. This paper is a review of recent progress brought by periodic density functional theory (DFT) calculations in the area of two relevant industrial supported catalysts. We focus on two important supports used in the refining industry: anatase-TiO(2) and γ-alumina. According to the various reaction conditions, the presence of H(2)O, H(2) and H(2)S may change the surface states of the support. In particular, it is crucial to know and control the hydroxylation state depending on temperature and partial pressure of reactants (H(2)O, H(2), H(2)S). The support effects on the catalytic active phases are presented for MoS(2) particles, used in hydrodesulfurization catalysis, and for Pd particles, used in hydrogenation catalysis. It is shown how the wetting property and equilibrium morphology of the active phase depend on the support. A discussion on the impact for catalytic activities is provided.
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Affiliation(s)
- P Raybaud
- IFP, 1&4 av. Bois Préau, 92852 Rueil Malmaison Cedex, France
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Benco L, Bucko T, Hafner J, Toulhoat H. Periodic DFT calculations of the stability of Al/Si substitutions and extraframework Zn2+ cations in mordenite and reaction pathway for the dissociation of H2 and CH4. J Phys Chem B 2007; 109:20361-9. [PMID: 16853635 DOI: 10.1021/jp0530597] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The local stability of Al atoms replacing Si in the zeolite framework is compared for all inequivalent tetrahedral (T) sites in mordenite. For Al/Si substitutions in two T sites the stable location of the compensating extraframework Zn(2+) cation forming a Lewis acid site is determined. In the most stable Zn-MOR structures Zn(2+) is located in a small ring (5MR, 6MR) containing two Al/Si substitutions. In less stable structures the Al atoms are placed at larger distances from each other and Zn(2+) interacts with only one Al site. The simulated adsorption of H(2) and CH(4) shows that adsorption strength decreases with increasing stability of the Zn(2+) Lewis site. A higher adsorption strength is observed for Zn(2+) deposited in the 5MR than for the 6MR. The reactivity of a series of stable Zn(2+) Lewis sites is tested via the dissociative adsorption of H(2) and CH(4). The heterolytic dissociation of the adsorbed molecule on the extraframework Zn(2+) cation produces a proton and an anion. The anion binds to Zn(2+) and proton goes to the zeolite framework, restoring a Brønsted acid site. Because bonding of the anion to Zn(2+) is almost energetically equivalent for Zn(2+) in any of the extraframework positions the dissociation is governed by stabilizing bonding of the proton to the framework. Those structures which can exothermically accommodate the proton represent reaction pathways. Due to the repulsion between the proton and Zn(2+) the most favorable proton-accepting O sites are not those of the ring where Zn(2+) is deposited, but O sites close to the ring. Large differences are observed for neighboring positions in a- and b-directions and those oriented along the c-vector. Finally, among the stable Zn(2+) Lewis sites not all represent reaction pathways for dehydrogenation. For all of them the dissociation of H(2) is an exothermic process. In structures exhibiting the highest reactivity the Al/Si substitutions are placed at a large distance and the Zn(2+) cation interacts with O-atoms next to Al in the T4 site of the 5MR. This Lewis site is strong enough to break the C-H bond in the CH(4) molecule.
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Affiliation(s)
- L Benco
- Institut für Materialphysik and Center for Computational Materials Science, Universität Wien, Sensengasse 8, A-1090 Vienna, Austria.
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Digne M, Raybaud P, Sautet P, Guillaume D, Toulhoat H. Quantum chemical and vibrational investigation of sodium exchanged γ-alumina surfaces. Phys Chem Chem Phys 2007; 9:2577-82. [PMID: 17508090 DOI: 10.1039/b700541e] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The sodium cation is well known as an efficient poison of gamma-alumina surface acidity. This poisoning effect has been revealed both by characterization methods and catalytic tests. In this work, we propose an accurate model of sodium exchanged gamma-alumina surfaces. On realistic models of hydroxylated gamma-alumina surfaces, the location of sodium cation is determined by the use of density functional theory (DFT) methods. For the (100) and (110) surfaces of gamma-alumina, the sodium cation is found in a solvated state within an inner solvation sphere complex. Its coordination sphere is constituted by O-mu(2), O-mu(3) and HO-mu(1) surface groups. The stretching frequency of these HO-mu(1) groups is shifted, leading to the appearance of a new band predicted and observed at about 3754 cm(-1) on the IR spectrum.
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Affiliation(s)
- Mathieu Digne
- Direction Physique et Analyse, IFP, BP 3, 69390 Vernaison, France.
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Jacquin Y, Toulhoat H, Quignard A, Le Page JF. Développements récents dans le domaine de l'hydrotraitement des fractions lourdes. ACTA ACUST UNITED AC 2006. [DOI: 10.2516/ogst:1983022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Gualda G, Toulhoat H. Etude de la desactivation des catalyseurs d'hydrotraitement par cokage. Synthèse bibliographique. ACTA ACUST UNITED AC 2006. [DOI: 10.2516/ogst:1988036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Tanoubi I, Martinerie P, Bourseau P, Muratet G, Toulhoat H. Simulation de la désactivation d'un catalyseur d'hydrodémétallisation à géométrie ouverte. ACTA ACUST UNITED AC 2006. [DOI: 10.2516/ogst:1991018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Bourseau P, Muratet G, Saillour C, Toulhoat H. Evolution au cours du temps d'un grain de catalyseur d'hydrodémétallisation : module et simulation numérique de résultats expérimentaux. ACTA ACUST UNITED AC 2006. [DOI: 10.2516/ogst:1985037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Toulhoat H, Clemendot S. Évaluation précise des acidités au niveau DFT : application aux catalyseurs solides superacides. ACTA ACUST UNITED AC 2006. [DOI: 10.2516/ogst:1996004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Digne M, Raybaud P, Sautet P, Rebours B, Toulhoat H. Comment on “Examination of Spinel and Nonspinel Structural Models for γ-Al2O3by DFT and Rietveld Refinement Simulations”. J Phys Chem B 2006; 110:20719-20; author reply 20724-6. [PMID: 17034264 DOI: 10.1021/jp061466s] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Benco L, Bucko T, Hafner J, Toulhoat H. A Density Functional Theory Study of Molecular and Dissociative Adsorption of H2 on Active Sites in Mordenite. J Phys Chem B 2005; 109:22491-501. [PMID: 16853930 DOI: 10.1021/jp0533729] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Adsorption and chemisorption of H2 in mordenite is studied using ab initio density functional theory (DFT) calculations. The geometries of the adsorption complex, the adsorption energies, stretching frequencies, and the capacity to dissociate the adsorbed molecule are compared for different active sites. The active centers include a Brønsted acid site, a three-coordinated surface Al site, and Lewis sites formed by extraframework cations: Na+, Cu+, Ag+, Zn2+, Cu2+, Ga3+, and Al3+. Adsorption properties of cations are compared for a location of the cation in the five-membered ring. This location differs from the location in the six-membered ring observed for hydrated cations. The five-membered ring, however, represents a stable location of the bare cation. In this position any cation exhibits higher reactivity compared with the location in the six-membered ring and is well accessible by molecules adsorbed in the main channel of the zeolite. Calculated adsorption energies range from 4 to 87 kJ/mol, depending on electronegativity and ionic radius of the cation and the stability of the cation-zeolite complex. The largest adsorption energy is observed for Cu+ and the lowest for Al3+ integrated into the interstitial site of the zeolite framework. A linear dependence is observed between the stretching frequency and the bond length of the adsorbed H2 molecule. The capacity of the metal-exchanged zeolite to dissociate the H2 molecule does not correlate with the adsorption energy. Dissociation is not possible on single Cu+ cation. The best performance is observed for the Ga3+, Zn2+, and Al3+ extraframework cations, in good agreement with experimental data.
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Affiliation(s)
- L Benco
- Institut für Materialphysik and Center for Computational Materials Science, Universität Wien, Sensengasse 8, A-1090 Wien, Austria.
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Toulhoat H, Hudebine D, Raybaud P, Guillaume D, Kressmann S. THERMIDOR: A new model for combined simulation of operations and optimization of catalysts in residues hydroprocessing units. Catal Today 2005. [DOI: 10.1016/j.cattod.2005.08.023] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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de Bruin TJM, Lorant F, Toulhoat H, Goddard WA. Reaction Kinetics of a Selected Number of Elementary Processes Involved in the Thermal Decomposition of 9-Methylphenanthrene Using Density Functional Theory. J Phys Chem A 2004. [DOI: 10.1021/jp0372486] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Theodorus J. M. de Bruin
- Institut Français du Pétrole, 1-4 Avenue de Bois Préau, 92852 Rueil-Malmaison Cedex, France, and Material Simulation Center, Beckman Institute (139-74), California Institute of Technology, Pasadena, California 91125
| | - François Lorant
- Institut Français du Pétrole, 1-4 Avenue de Bois Préau, 92852 Rueil-Malmaison Cedex, France, and Material Simulation Center, Beckman Institute (139-74), California Institute of Technology, Pasadena, California 91125
| | - Hervé Toulhoat
- Institut Français du Pétrole, 1-4 Avenue de Bois Préau, 92852 Rueil-Malmaison Cedex, France, and Material Simulation Center, Beckman Institute (139-74), California Institute of Technology, Pasadena, California 91125
| | - William A. Goddard
- Institut Français du Pétrole, 1-4 Avenue de Bois Préau, 92852 Rueil-Malmaison Cedex, France, and Material Simulation Center, Beckman Institute (139-74), California Institute of Technology, Pasadena, California 91125
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Benco L, Bucko T, Hafner J, Toulhoat H. Ab Initio Simulation of Lewis Sites in Mordenite and Comparative Study of the Strength of Active Sites via CO Adsorption. J Phys Chem B 2004. [DOI: 10.1021/jp048056t] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- L. Benco
- Institut für Materialphysik and Center for Computational Materials Science, Universität Wien, Sensengasse 8, A-1090 Wien, Austria, Institute of Inorganic Chemistry, Slovak Academy of Sciences, Dubravska cesta 9, SK-84236 Bratislava, Slovak Republic, and Institut Français du Pétrole, F-92852 Rueil-Malmaison Cedex, France
| | - T. Bucko
- Institut für Materialphysik and Center for Computational Materials Science, Universität Wien, Sensengasse 8, A-1090 Wien, Austria, Institute of Inorganic Chemistry, Slovak Academy of Sciences, Dubravska cesta 9, SK-84236 Bratislava, Slovak Republic, and Institut Français du Pétrole, F-92852 Rueil-Malmaison Cedex, France
| | - J. Hafner
- Institut für Materialphysik and Center for Computational Materials Science, Universität Wien, Sensengasse 8, A-1090 Wien, Austria, Institute of Inorganic Chemistry, Slovak Academy of Sciences, Dubravska cesta 9, SK-84236 Bratislava, Slovak Republic, and Institut Français du Pétrole, F-92852 Rueil-Malmaison Cedex, France
| | - H. Toulhoat
- Institut für Materialphysik and Center for Computational Materials Science, Universität Wien, Sensengasse 8, A-1090 Wien, Austria, Institute of Inorganic Chemistry, Slovak Academy of Sciences, Dubravska cesta 9, SK-84236 Bratislava, Slovak Republic, and Institut Français du Pétrole, F-92852 Rueil-Malmaison Cedex, France
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Arrouvel C, Digne M, Breysse M, Toulhoat H, Raybaud P. Effects of morphology on surface hydroxyl concentration: a DFT comparison of anatase–TiO2 and γ-alumina catalytic supports. J Catal 2004. [DOI: 10.1016/j.jcat.2003.10.016] [Citation(s) in RCA: 232] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Affiliation(s)
- Florian Mittendorfer
- Division Chimie et Physico-chimie appliquées, Division Catalyse et Séparation, and Direction Scientifique, Institut Français du Pétrole, 1-4 avenue de Bois Préau − 92500 Rueil-Malmaison, Cedex, France
| | - C. Thomazeau
- Division Chimie et Physico-chimie appliquées, Division Catalyse et Séparation, and Direction Scientifique, Institut Français du Pétrole, 1-4 avenue de Bois Préau − 92500 Rueil-Malmaison, Cedex, France
| | - P. Raybaud
- Division Chimie et Physico-chimie appliquées, Division Catalyse et Séparation, and Direction Scientifique, Institut Français du Pétrole, 1-4 avenue de Bois Préau − 92500 Rueil-Malmaison, Cedex, France
| | - H. Toulhoat
- Division Chimie et Physico-chimie appliquées, Division Catalyse et Séparation, and Direction Scientifique, Institut Français du Pétrole, 1-4 avenue de Bois Préau − 92500 Rueil-Malmaison, Cedex, France
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Benco L, Hafner J, Hutschka F, Toulhoat H. Physisorption and Chemisorption of Some n-Hydrocarbons at the Brønsted Acid Site in Zeolites 12-Membered Ring Main Channels: Ab Initio Study of the Gmelinite Structure. J Phys Chem B 2003. [DOI: 10.1021/jp027625z] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- L. Benco
- Institut für Materialphysik and Center for Computational Materials Science, Universität Wien, Sensengasse 8, A-1090 Wien, Austria, Institute of Inorganic Chemistry, Slovak Academy of Sciences, Dubravska cesta 9, SK-84236 Bratislava, Slovak Republic, Totalfinaelf, Centre Européen de Recherche et Technique, B. P. 27, F-76700 Harfleur, France, and Institut Français du Pétrole, F-92852 Rueil-Malmaison Cedex, France
| | - J. Hafner
- Institut für Materialphysik and Center for Computational Materials Science, Universität Wien, Sensengasse 8, A-1090 Wien, Austria, Institute of Inorganic Chemistry, Slovak Academy of Sciences, Dubravska cesta 9, SK-84236 Bratislava, Slovak Republic, Totalfinaelf, Centre Européen de Recherche et Technique, B. P. 27, F-76700 Harfleur, France, and Institut Français du Pétrole, F-92852 Rueil-Malmaison Cedex, France
| | - F. Hutschka
- Institut für Materialphysik and Center for Computational Materials Science, Universität Wien, Sensengasse 8, A-1090 Wien, Austria, Institute of Inorganic Chemistry, Slovak Academy of Sciences, Dubravska cesta 9, SK-84236 Bratislava, Slovak Republic, Totalfinaelf, Centre Européen de Recherche et Technique, B. P. 27, F-76700 Harfleur, France, and Institut Français du Pétrole, F-92852 Rueil-Malmaison Cedex, France
| | - H. Toulhoat
- Institut für Materialphysik and Center for Computational Materials Science, Universität Wien, Sensengasse 8, A-1090 Wien, Austria, Institute of Inorganic Chemistry, Slovak Academy of Sciences, Dubravska cesta 9, SK-84236 Bratislava, Slovak Republic, Totalfinaelf, Centre Européen de Recherche et Technique, B. P. 27, F-76700 Harfleur, France, and Institut Français du Pétrole, F-92852 Rueil-Malmaison Cedex, France
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de Bruin TJM, Magna L, Raybaud P, Toulhoat H. Hemilabile Ligand Induced Selectivity: a DFT Study on Ethylene Trimerization Catalyzed by Titanium Complexes. Organometallics 2003. [DOI: 10.1021/om030255w] [Citation(s) in RCA: 101] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Theodorus J. M. de Bruin
- Division Chimie et Physico-Chimie Appliquées, Département Thermodynamique et Modélisation Moléculaire, Division Catalyse et Séparation, Département Catalyse Moléculaire, and Direction Scientifique, Institut Français du Pétrole, 1-4 Avenue de Bois Préau, 92852 Rueil-Malmaison Cedex, France
| | - Lionel Magna
- Division Chimie et Physico-Chimie Appliquées, Département Thermodynamique et Modélisation Moléculaire, Division Catalyse et Séparation, Département Catalyse Moléculaire, and Direction Scientifique, Institut Français du Pétrole, 1-4 Avenue de Bois Préau, 92852 Rueil-Malmaison Cedex, France
| | - Pascal Raybaud
- Division Chimie et Physico-Chimie Appliquées, Département Thermodynamique et Modélisation Moléculaire, Division Catalyse et Séparation, Département Catalyse Moléculaire, and Direction Scientifique, Institut Français du Pétrole, 1-4 Avenue de Bois Préau, 92852 Rueil-Malmaison Cedex, France
| | - Hervé Toulhoat
- Division Chimie et Physico-Chimie Appliquées, Département Thermodynamique et Modélisation Moléculaire, Division Catalyse et Séparation, Département Catalyse Moléculaire, and Direction Scientifique, Institut Français du Pétrole, 1-4 Avenue de Bois Préau, 92852 Rueil-Malmaison Cedex, France
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Benazzi E, Leite L, Marchal-George N, Toulhoat H, Raybaud P. New insights into parameters controlling the selectivity in hydrocracking reactions. J Catal 2003. [DOI: 10.1016/s0021-9517(03)00041-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Rose J, De Bruin TJM, Chauveteau G, Tabary R, Hazemann JL, Proux O, Omari A, Toulhoat H, Bottero JY. Aqueous Zirconium Complexes for Gelling Polymers. A Combined X-ray Absorption Spectroscopy and Quantum Mechanical Study. J Phys Chem B 2003. [DOI: 10.1021/jp027114c] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jérôme Rose
- CEREGE, UMR 6635 CNRS/Université Aix-Marseille III, IFR PMSE 112, Europole Méditerranéen de l’Arbois, BP80, 13545 Aix en Provence Cedex 4, France, IFP, BP311, 92506 Rueil-Malmaison, France, Laboratoire de Cristallographie CNRS 38042 Grenoble Cedex 9, France, and MASTER-ENSCPB, 16 av. de Peberland, 33607 Pessac Cedex, France
| | - Theodorus J. M. De Bruin
- CEREGE, UMR 6635 CNRS/Université Aix-Marseille III, IFR PMSE 112, Europole Méditerranéen de l’Arbois, BP80, 13545 Aix en Provence Cedex 4, France, IFP, BP311, 92506 Rueil-Malmaison, France, Laboratoire de Cristallographie CNRS 38042 Grenoble Cedex 9, France, and MASTER-ENSCPB, 16 av. de Peberland, 33607 Pessac Cedex, France
| | - Guy Chauveteau
- CEREGE, UMR 6635 CNRS/Université Aix-Marseille III, IFR PMSE 112, Europole Méditerranéen de l’Arbois, BP80, 13545 Aix en Provence Cedex 4, France, IFP, BP311, 92506 Rueil-Malmaison, France, Laboratoire de Cristallographie CNRS 38042 Grenoble Cedex 9, France, and MASTER-ENSCPB, 16 av. de Peberland, 33607 Pessac Cedex, France
| | - René Tabary
- CEREGE, UMR 6635 CNRS/Université Aix-Marseille III, IFR PMSE 112, Europole Méditerranéen de l’Arbois, BP80, 13545 Aix en Provence Cedex 4, France, IFP, BP311, 92506 Rueil-Malmaison, France, Laboratoire de Cristallographie CNRS 38042 Grenoble Cedex 9, France, and MASTER-ENSCPB, 16 av. de Peberland, 33607 Pessac Cedex, France
| | - Jean-Louis Hazemann
- CEREGE, UMR 6635 CNRS/Université Aix-Marseille III, IFR PMSE 112, Europole Méditerranéen de l’Arbois, BP80, 13545 Aix en Provence Cedex 4, France, IFP, BP311, 92506 Rueil-Malmaison, France, Laboratoire de Cristallographie CNRS 38042 Grenoble Cedex 9, France, and MASTER-ENSCPB, 16 av. de Peberland, 33607 Pessac Cedex, France
| | - Olivier Proux
- CEREGE, UMR 6635 CNRS/Université Aix-Marseille III, IFR PMSE 112, Europole Méditerranéen de l’Arbois, BP80, 13545 Aix en Provence Cedex 4, France, IFP, BP311, 92506 Rueil-Malmaison, France, Laboratoire de Cristallographie CNRS 38042 Grenoble Cedex 9, France, and MASTER-ENSCPB, 16 av. de Peberland, 33607 Pessac Cedex, France
| | - Aziz Omari
- CEREGE, UMR 6635 CNRS/Université Aix-Marseille III, IFR PMSE 112, Europole Méditerranéen de l’Arbois, BP80, 13545 Aix en Provence Cedex 4, France, IFP, BP311, 92506 Rueil-Malmaison, France, Laboratoire de Cristallographie CNRS 38042 Grenoble Cedex 9, France, and MASTER-ENSCPB, 16 av. de Peberland, 33607 Pessac Cedex, France
| | - Hervé Toulhoat
- CEREGE, UMR 6635 CNRS/Université Aix-Marseille III, IFR PMSE 112, Europole Méditerranéen de l’Arbois, BP80, 13545 Aix en Provence Cedex 4, France, IFP, BP311, 92506 Rueil-Malmaison, France, Laboratoire de Cristallographie CNRS 38042 Grenoble Cedex 9, France, and MASTER-ENSCPB, 16 av. de Peberland, 33607 Pessac Cedex, France
| | - Jean-Yves Bottero
- CEREGE, UMR 6635 CNRS/Université Aix-Marseille III, IFR PMSE 112, Europole Méditerranéen de l’Arbois, BP80, 13545 Aix en Provence Cedex 4, France, IFP, BP311, 92506 Rueil-Malmaison, France, Laboratoire de Cristallographie CNRS 38042 Grenoble Cedex 9, France, and MASTER-ENSCPB, 16 av. de Peberland, 33607 Pessac Cedex, France
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Anisimov MA, Yudin IK, Nikitin V, Nikolaenko G, Chernoutsan A, Toulhoat H, Frot D, Briolant Y. Asphaltene Aggregation in Hydrocarbon Solutions Studied by Photon Correlation Spectroscopy. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100023a040] [Citation(s) in RCA: 125] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Houssenbay S, Kasztelan S, Toulhoat H, Bonnelle JP, Grimblot J. Nature of the different nickel species in sulfided bulk and alumina-supported nickel-molybdenum hydrotreating catalysts. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100357a030] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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