Revealing correlation of valence state with nanoporous structure in cobalt catalyst nanoparticles by in situ environmental TEM

ACS Nano

Volumn 6, Issue 5, 2012, Pages 4241-4247

  Xin, Huolin L ^a   Pach, Elzbieta A ^a   Diaz, Rosa E ^b   Stach, Eric A ^b   Salmeron, Miquel ^a   Zheng, Haimei ^a  

^a LAWRENCE BERKELEY NATIONAL LABORATORY   (United States)

^b BROOKHAVEN NATIONAL LABORATORY   (United States)

Author keywords

Cobalt catalysts; Environmental TEM; Fischer Tropsch synthesis; In situ TEM; Porosity control

Indexed keywords

ATOMIC SCALE; CATALYST OPTIMIZATION; COBALT CATALYST; COBALT OXIDES; COBALT PARTICLES; COBALT-BASED CATALYSTS; ENVIRONMENTAL TRANSMISSION ELECTRON MICROSCOPES; IN-SITU; IN-SITU EXPERIMENTS; IN-SITU TEM; MASS ACTIVITY; MATERIALS DESIGN; METALLIC COBALT; NANO-POROUS; NANOPARTICLE CATALYSTS; NANOPOROUS STRUCTURES; NANOSCOPIC IMAGING; POROSITY CONTROL; PUMPED GAS; QUANTITATIVE CORRELATION; REACTION CONDITIONS; REACTION MECHANISM; STRUCTURE AND MORPHOLOGY; VALENCE STATE;

CARBON MONOXIDE; CATALYSTS; COBALT; ELECTRON ENERGY LOSS SPECTROSCOPY; ELECTRONIC STRUCTURE; EXPERIMENTS; FISCHER-TROPSCH SYNTHESIS; HYDROGEN; METALLIC COMPOUNDS; SILICA; TRANSMISSION ELECTRON MICROSCOPY;

NANOPARTICLES;

EID: 84864651514     PISSN: 19360851     EISSN: 1936086X     Source Type: Journal    
DOI: 10.1021/nn3007652     Document Type: Article

References (21)

1. 2 Catalysts for Fischer-Tropsch Synthesis. J. Phys. Chem. B 2004, 108, 16201-16207.
2. Herranz, T.; Deng, X.; Cabot, A.; Guo, J.; Salmeron, M. Influence of the Cobalt Particle Size in the Co Hydrogenation Reaction Studied by In Situ X-ray Absorption Spectroscopy. J. Phys. Chem. B 2009, 113, 10721-10727.
3. Zheng, H.; Smith, R. K.; Jun, Y.-w.; Kisielowski, C.; Dahmen, U.; Alivisatos, A. P. Observation of Single Colloidal Platinum Nanocrystal Growth Trajectories. Science 2009, 324, 1309-1312.
4. Hansen, P. L.; Wagner, J. B.; Helveg, S.; Rostrup-Nielsen, J. R.; Clausen, B. S.; Topsøe, H. Atom-Resolved Imaging of Dynamic Shape Changes in Supported Copper Nanocrystals. Science 2002, 295, 2053-2055.
5. Sharma, R. Design and Applications of Environmental Cell Transmission Electron Microscope for In Situ Observations of Gas-Solid Reactions. Microsc. Microanal. 2001, 7, 494-506.
6. Dry, M. E. The Fischer-Tropsch Process: 1950-2000. Catal. Today 2002, 71, 227-241.
7. Huber, G. W.; Iborra, S.; Corma, A. Synthesis of Transportation Fuels from Biomass: Chemistry, Catalysts, and Engineering. Chem. Rev. 2006, 106, 4044-4098.
8. Dry, M. E. Fischer-Tropsch Synthesis - Industrial. Encyclopedia of Catalysis; John Wiley & Sons, Inc.: New York, 2002.
9. Iglesia, E. Design, Synthesis, and Use of Cobalt-Based Fischer-Tropsch Synthesis Catalysts. Appl. Catal. A 1997, 161, 59-78.
10. Brady, R. C., III; Pettit, R. Mechanism of the Fischer-Tropsch Reaction: The Chain Propagation Step. J. Am. Chem. Soc. 1981, 103, 1287-1289.
11. Oukaci, R.; Singleton, A. H.; Goodwin, J. G. Comparison of Patented Cof-T Catalysts Using Fixed-Bed and Slurry Bubble Column Reactors. Appl. Catal. A 1999, 186, 129-144.
12. Dry, M. The Fischer-Tropsch Synthesis. Catal. Sci. Technol. 1981, 1, 159-255.
13. 2 Yolk-Shell Nanoreactor Catalysts: High Temperature Stability and Recyclability. J. Mater. Chem. 2010, 20, 1239-1246.
14. Midgley, P. A.; Weyland, M. 3D Electron Microscopy in the Physical Sciences: The Development of Z-Contrast and Eftem Tomography. Ultramicroscopy 2003, 96, 413-431.
15. Li, H.; Xin, H. L.; Muller, D. A.; Estroff, L. A. Visualizing the 3D Internal Structure of Calcite Single Crystals Grown in Agarose Hydrogels. Science 2009, 326, 1244-1247.
16. Xin, H. L.; Ercius, P.; Hughes, K. J.; Engstrom, J. R.; Muller, D. A. Three-Dimensional Imaging of Pore Structures inside Low-Kappa Dielectrics. Appl. Phys. Lett. 2010, 96, 223108-3.
17. Garvie, L. A. J.; Buseck, P. R. Ratios of Ferrous to Ferric Iron from Nanometre-Sized Areas in Minerals. Nature 1998, 396, 667-670.
18. Paterson, J. H.; Krivanek, O. L. Elnes of 3D Transition-Metal Oxides: II. Variations with Oxidation State and Crystal Structure. Ultramicroscopy 1990, 32, 319-325.
19. Kurata, H.; Colliex, C. Electron-Energy-Loss Core-Edge Structures in Manganese Oxides. Phys. Rev. B 1993, 48, 2102-2108.
20. Rask, J. H.; Miner, B. A.; Buseck, P. R. Determination of Manganese Oxidation States in Solids by Electron Energy-Loss Spectroscopy. Ultramicroscopy 1987, 21, 321-326.
21. Zhao, Y.; Feltes, T. E.; Regalbuto, J. R.; Meyer, R. J.; Klie, R. F. In Situ Electron Energy Loss Spectroscopy Study of Metallic Co and Co Oxides. J. Appl. Phys. 2010, 108, 063704-1-063704-7.