, Volume 3, Issue 3–4, pp 163–169 | Cite as

Platinum Monolayer Electrocatalysts: Tunable Activity, Stability, and Self-Healing Properties

  • Radoslav R. Adzic


Platinum monolayer-nanostructured electrocatalysts were developed principally for the oxygen reduction reaction starting with fundamental studies on single-crystal substrates, supported by theoretical treatments, synthesizing nanoparticles, followed by scale-up syntheses and fuel cell tests. These catalysts consist of nanometer-scale core–shell particles with monolayers of platinum that are supported by metal, metal alloy, or nanostructured noble metal/non-noble metal cores. In addition to an ultralow Pt content (one monolayer) and high Pt utilization (all atoms are on the surface and can participate in the reaction), these catalysts are characterized by very high activity and stability induced by supporting nanoparticles cores, by the ability to tune the catalytic activity of a Pt monolayer depending on the properties of the top atomic layer of the cores, and by a self-healing property. The latter two properties, which open particularly broad possibilities for applications of these catalysts, will be briefly analyzed in this article. Examples of tunable activity include electrocatalysts consisting of a Pt monolayer on smooth core surfaces, Pd tetrahedral nanoparticles, Pd nanowire, and hollow Pd nanoparticle cores. The self-healing properties are illustrated by stability tests involving potential cycling. Possible future research involving these catalysts is discussed.


Platinum Oxygen reduction Monolayer catalyst Fuel cells 



This work is supported by U.S. Department of Energy (DOE), Divisions of Chemical and Material Sciences, under the contract no. DE-AC02-98CH10886


  1. 1.
    R.R. Adzic, J. Lipkowski, P.N. Ross (eds.), Electrocatalysis (Wiley, New York, 1998), p. 197Google Scholar
  2. 2.
    R.R. Adzic, J. Zhang, K. Sasaki, M.B. Vukmirovic, M. Shao, J.X. Wang, A.U. Nilekar, M. Mavrikakis, J.A. Valerio, F. Uribe, Top. Catal. 46, 249 (2007)CrossRefGoogle Scholar
  3. 3.
    S.R. Brankovic, J.X. Wang, R.R. Adzic, Electrochem. Solid-State Lett. 4, A217 (2001)CrossRefGoogle Scholar
  4. 4.
    J. Zhang, Y. Mo, M.B. Vukmirovic, R. Klie, K. Sasaki, R.R. Adzic, J. Phys. Chem. B 108, 10955 (2004)CrossRefGoogle Scholar
  5. 5.
    R.R. Adzic, in Advances in electrochemistry and electrochemical engineering, ed. by H. Gerischer (Wiley, New York, 1984), p. 159Google Scholar
  6. 6.
    R.R. Adzic, in Encyclopedia of electrochemistry, ed. by A. Bard, M. Stratmann (Wiley, New York, 2002)Google Scholar
  7. 7.
    S.R.W. Brankovic, J.X. Wang, R.R. Adzic, Surf. Sci. 477, L173 (2001)CrossRefGoogle Scholar
  8. 8.
    J.L. Zhang, M.B. Vukmirovic, Y. Xu, M. Mavrikakis, R.R. Adzic, Angew. Chem. Int. Ed. 44, 2132 (2005)CrossRefGoogle Scholar
  9. 9.
    B. Hammer, J.K. Nørskov, Adv. Catal. 45, 71 (2000)CrossRefGoogle Scholar
  10. 10.
    J. Greeley, M. Mavrikakis, Nat. Mater. 3, 810 (2004)CrossRefGoogle Scholar
  11. 11.
    J.L. Zhang, M.B. Vukmirovic, K. Sasaki, A.U. Nilekar, M. Mavrikakis, R.R. Adzic, J. Am. Chem. Soc. 127, 12480 (2005)CrossRefGoogle Scholar
  12. 12.
    J.X. Wang, C. Ma, Y. Choi, D. Su, Y. Zhu, P. Liu, R. Si, M.B. Vukmirovic, Y. Zhang, R.R. Adzic, J. Am. Chem. Soc. 133, 13551 (2011)CrossRefGoogle Scholar
  13. 13.
    Y. Cai, C. Ma, Y. Zhu, J.X. Wang, A. RR, Langmuir 27, 8540 (2011)CrossRefGoogle Scholar
  14. 14.
    K. Gong, M.B. Vukmirovic, C. Ma, Y. Zhu, R.R. Adzic, J Electroanal. Chem. 662, 213–218 (2011)Google Scholar
  15. 15.
    S. Bliznakov, M. Vukmirovic, L. Yang, E. Sutter, R.R. Adzic, ECS transactions 41, 1055 (2011)CrossRefGoogle Scholar
  16. 16.
    Y. Zhang, C. Ma, Y. Zhu, R. Si, Y. Cai, J. X. Wang and R. R. Adzic (2012) Catalysis Today, htpp://
  17. 17.
    K. Sasaki, H. Naohara, Y. Cai, Y.M. Choi, P. Liu, M.B. Vukmirovic, J.X. Wang, A.R. Radoslav, Angew Chem. Int Ed 49, 8602–8607 (2010)CrossRefGoogle Scholar
  18. 18.
    J. Zhang, K. Sasaki, E. Sutter, R.R. Adzic, Science 315, 220 (2007)CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  1. 1.Chemistry DepartmentBrookhaven National LaboratoryUptonUSA

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