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Investigation of CO Oxidation Transient Kinetics on an Oxygen Pre-covered Au(211) Stepped Surface

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Abstract

The desire to explain the origin(s) of the unexpected catalytic activity of oxide-supported Au nanoparticles for CO oxidation discovered by Haruta and coworkers has stimulated numerous experimental and theoretical studies of Au nanoclusters in the gas phase and on metal oxide supports, and on Au single-crystal surfaces. In order to explore further the reactivity of low-coordination Au step sites, we have performed transient kinetics studies of CO oxidation on an O-precovered, stepped Au(211) single crystal surface. We found behavior similar to that observed previously on flat Au(111) and (110) surfaces; i.e., there is no evidence in these transient kinetics for any special reactivity associated with this stepped Au surface. The CO oxidation reaction rate was highly dependent on the initial oxygen coverage, and we determined an apparent activation energy for CO oxidation of −7.0 kJ mol−1 for θ initO  = 0.9 ML. Within the Langmuir-Hinschelwood (LH) reaction scheme, we estimate an activation energy of E LH = 20–43 kJ mol−1 on this surface for CO oxidation via this pathway. This is somewhat below the value of 67 kJ mol−1 predicted by recent theoretical calculations.

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References

  1. Haruta M, Kobayashi T, Sano H, Yamada N (1987) Chem Lett 2:405

    Article  Google Scholar 

  2. Haruta M, Yamada N, Kobayashi T, Iijima S (1989) J Catal 115:301

    Article  CAS  Google Scholar 

  3. Haruta M, Tsubota S, Kobayashi T, Kageyama H, Genet MJ, Delmon B (1993) J Catal 144:175

    Article  CAS  Google Scholar 

  4. Haruta M (2002) Cattech 6:102

    Article  CAS  Google Scholar 

  5. Mavrikakis M, Stoltze P, Norskov JK (2000) Catal Lett 64:101

    Article  CAS  Google Scholar 

  6. Lopez N, Norskov JK (2002) J Am Chem Soc 124:11262

    Article  CAS  Google Scholar 

  7. Xu Y, Mavrikakis M (2003) J Phys Chem B 107:9298

    Article  CAS  Google Scholar 

  8. Lopez N, Janssens TVW, Clausen BS, Xu Y, Mavrikakis M, Bligaard T, Norskov JK (2004) J Catal 223:232

    Article  CAS  Google Scholar 

  9. Liu ZP, Hu P, Alavi A (2002) J Am Chem Soc 124:14770

    Article  CAS  Google Scholar 

  10. Lazaga MA, Wickham DT, Parker DH, Kastanas GN, Koel BE (1993) In: Hightower JW, Oyama ST (eds) ACS Symposium Series. ACS, Washington, DC, p 90

    Google Scholar 

  11. Outka DA, Madix RJ (1987) Surf Sci 179:351

    Article  CAS  Google Scholar 

  12. Gottfried JM, Christmann K (2004) Surf Sci 566–568:1112

    Google Scholar 

  13. Min BK, Alemozafar AR, Pinnaduwage D, Deng X, Friend CM (2006) J Phys Chem B 110:19833

    Article  CAS  Google Scholar 

  14. Kim J, Samano E, Koel BE (2006) Surf Sci 600:4622

    Article  CAS  Google Scholar 

  15. Kim J, Samano E, Koel BE (2006) J Phys Chem B 110:17512

    Article  CAS  Google Scholar 

  16. Engel T, Ertl G (1978) J Chem Phys 69:1267

    Article  CAS  Google Scholar 

  17. Bowker M, Barteau MA, Madix RJ (1980) Surf Sci 92:528

    Article  CAS  Google Scholar 

  18. Gottfried JM, Schmidt KJ, Schroeder SLM, Christmann K (2003) Surf Sci 536:206

    Article  CAS  Google Scholar 

  19. Mahan BH, Solo RB (1962) J Chem Phys 37:2669

    Article  CAS  Google Scholar 

  20. Saliba N, Parker DH, Koel BE (1998) Surf Sci 410:270

    Article  CAS  Google Scholar 

  21. Min BK, Deng X, Pinnaduwage D, Schalek R, Friend CM (2005) Phys Rev B 72:121410

    Article  Google Scholar 

  22. Turner M, Golovko VB, Vaughan OPH, Abdulkin P, Berenguer-Murcia A, Tikhov MS, Johnson BFG, Lambert RM (2008) Nature 454:981

    Article  CAS  Google Scholar 

  23. Valden M, Lai X, Goodman DW (1998) Science 281:1647

    Article  CAS  Google Scholar 

  24. Valden M, Pak S, Lai X, Goodman DW (1998) Catal Lett 56:7

    Article  CAS  Google Scholar 

  25. Bondzie VA, Parker SC, Campbell CT (1999) Catal Lett 63:143

    Article  CAS  Google Scholar 

Download references

Acknowledgments

This work was supported by the Department of Energy, Office of Basic Energy Sciences, Chemical Sciences Division.

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Authors and Affiliations

  1. CNyN-Universidad Nacional Autónoma de México, Apdo. Postal 356, 22860, Ensenada, Baja California, Mexico

    Enrique Samano

  2. Department of Chemistry, Lehigh University, Bethlehem, PA, 18015-3172, USA

    Jooho Kim & Bruce E. Koel

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  1. Enrique Samano
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  2. Jooho Kim
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  3. Bruce E. Koel
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Correspondence to Bruce E. Koel.

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Samano, E., Kim, J. & Koel, B.E. Investigation of CO Oxidation Transient Kinetics on an Oxygen Pre-covered Au(211) Stepped Surface. Catal Lett 128, 263–267 (2009). https://doi.org/10.1007/s10562-008-9815-8

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  • DOI: https://doi.org/10.1007/s10562-008-9815-8

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