Abstract
Small clusters are known to possess reactivity not observed in their bulk analogues, which can make them attractive for catalysis1,2,3,4,5,6. Their distinct catalytic properties are often hypothesized to result from the large fraction of under-coordinated surface atoms7,8,9. Here, we show that size-preselected Pt8−10 clusters stabilized on high-surface-area supports are 40–100 times more active for the oxidative dehydrogenation of propane than previously studied platinum and vanadia catalysts, while at the same time maintaining high selectivity towards formation of propylene over by-products. Quantum chemical calculations indicate that under-coordination of the Pt atoms in the clusters is responsible for the surprisingly high reactivity compared with extended surfaces. We anticipate that these results will form the basis for development of a new class of catalysts by providing a route to bond-specific chemistry, ranging from energy-efficient and environmentally friendly synthesis strategies to the replacement of petrochemical feedstocks by abundant small alkanes10,11.
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References
Xu, Z. et al. Size-dependent catalytic activity of supported metal clusters. Nature 372, 346–348 (1994).
Gates, B. C. Supported metal clusters: Synthesis, structure, and catalysis. Chem. Rev. 95, 511–522 (1995).
Argo, A. M., Odzak, J. F., Lai, F. S. & Gates, B. C. Observation of ligand effects during alkene hydrogenation catalysed by supported metal clusters. Nature 415, 623–623 (2002).
Fu, Q., Saltsburg, H. & Flytzani-Stephanopoulos, M. Active Nonmetallic Au and Pt species on ceria-based water-gas shift catalysts. Science 301, 935–938 (2003).
Campbell, C. T. The active site in nanoparticle gold catalysis. Science 306, 234–235 (2004).
Chen, M. S. & Goodman, D. W. The structure of catalytically active gold on titania. Science 306, 252–255 (2004).
Lemire, C., Meyer, R., Shaikhutdinov, S. & Freund, H.-J. Do quantum size effects control CO adsorption on gold nanoparticles? Angew. Chem. Int. Ed. 43, 118–121 (2004).
Wei, J. & Iglesia, E. Mechanism and site requirements for activation and chemical conversion of methane on supported Pt clusters and turnover rate comparisons among noble metals. J. Phys. Chem. B 108, 4094–4103 (2004).
Hvolbaek, B. et al. Catalytic activity of Au nanoparticles. Nano Today 2, 14–18 (2007).
Hutchings, G. J., Scurrell, M. S. & Woodhouse, J. R. Oxidative coupling of methane using oxide catalysts. Chem. Soc. Rev. 18, 251–283 (1989).
Labinger, J. A. & Bercaw, J. E. Understanding and exploiting C–H bond activation. Nature 417, 507–509 (2002).
Cavani, F., Ballarini, N. & Cericola, A. Oxidative dehydrogenation of ethane and propane: How far from commercial implementation? Catal. Today 127, 113–131 (2007).
Benz, L. et al. Landing of size-selected Agn+ clusters on single crystal TiO2 (110)-(1×1) surfaces at room temperature. J. Chem. Phys. 122, 081102 (2005).
Lee, S., Fan, C., Wu, T. & Anderson, S. L. CO oxidation on Aun/TiO2 catalysts produced by size-selected cluster deposition. J. Am. Chem. Soc. 126, 5682–5683 (2004).
Winans, R. E. et al. Reactivity of supported platinum nanoclusters studied by in situ GISAXS: Clusters stability under hydrogen. Top. Catal. 39, 145–149 (2006).
Yoon, B. et al. Charging effects on bonding and catalyzed oxidation of CO on Au8 clusters on MgO. Science 307, 403–407 (2005).
Sadykov, V. A. et al. Oxidative dehydrogenation of propane over monoliths at short contact times. Catal. Today 61, 93–99 (2000).
Pellin, M. J. et al. Mesoporous catalytic membranes: Synthetic control of pore size and wall composition. Catal. Lett. 102, 127–130 (2005).
Bell, A. T. The impact of nanoscience on heterogeneous catalysis. Science 299, 1688–1691 (2003).
Somorjai, G. A., Contreras, A. M., Montano, M. & Rioux, R. M. Cluster chemistry and dynamics special feature: Clusters, surfaces, and catalysis. Proc. Natl Acad. Sci. 103, 10577–10583 (2006).
Xu, Y., Shelton, W. A. & Schneider, W. F. Thermodynamic equilibrium compositions, structures, and reaction energies of PtxOy (x=1–3) clusters predicted from first principles. J. Phys. Chem. B 110, 16591–16599 (2006).
Argyle, M. D., Chen, K., Bell, A. T. & Iglesia, E. Effect of catalyst structure on oxidative dehydrogenation of ethane and propane on alumina-supported vanadia. J. Catal. 208, 139–149 (2002).
Redfern, P. C. et al. Quantum chemical study of mechanisms for oxidative dehydrogenation of propane on vanadium oxide. J. Phys. Chem. B 110, 8363–8371 (2006).
Blomberg, M. R. A., Siegbahn, P. E. M., Nagashima, U. & Wennerberg, J. Theoretical study of the activation of alkane C–H and C–C bonds by different transition metals. J. Am. Chem. Soc. 113, 424–433 (1991).
Xiao, L. & Wang, L. Methane activation on Pt and Pt4: A density functional theory study. J. Phys. Chem. B 111, 1657–1663 (2007).
Cruz, A., Bertin, V., Poulain, E., Benitez, J. I. & Castillo, S. Theoretical study of the H2 reaction with a Pt4 (111) cluster. J. Chem. Phys. 120, 6222–6225 (2004).
Lee, S. et al. Selective propene epoxidation on immobilized Au6−10 clusters: The effect of hydrogen and water on selectivity and activity. Angew. Chem. Int. Ed. (in the press, 2008) <http://dx.doi.org/10.1002/anie.200804154>.
Yu, C., Xu, H., Ge, Q. & Li, W. Properties of the metallic phase of zinc-doped platinum catalysts for propane dehydrogenation. J. Mol. Catal. A 266, 80–87 (2007).
Silberova, B., Fathi, M. & Holmen, A. Oxidative dehydrogenation of ethane and propane at short contact time. Appl. Catal. A 276, 17–28 (2004).
Acknowledgements
The work at Argonne National Laboratory was supported by the US Department of Energy, BES-Chemical Sciences, BES-Materials Sciences, and BES-Scientific User Facilities under Contract DE-AC-02-06CH11357 with UChicago Argonne, LLC, Operator of Argonne National Laboratory. S.V. gratefully acknowledges the support by the Air Force Office of Scientific Research. We acknowledge grants of computer time at the Laboratory Computing Resource Center (LCRC) at Argonne National Laboratory, the National Energy Research Scientific Computing Center (NERSC) at Lawrence Berkeley National Laboratory and the Molecular Science Computing Facility (MSCF) at Pacific Northwest National Laboratory. The authors are indebted to E. Iglesia and P. Stair for valuable discussions, A. Holmen for providing the exact dimensions of the monolith used in their studies of Pt-based catalysts and thank J. Moore for carrying out X-ray photoemission spectroscopy analysis of the Pt/AAO sample.
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Vajda, S., Pellin, M., Greeley, J. et al. Subnanometre platinum clusters as highly active and selective catalysts for the oxidative dehydrogenation of propane. Nature Mater 8, 213–216 (2009). https://doi.org/10.1038/nmat2384
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DOI: https://doi.org/10.1038/nmat2384
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