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Sanjaya Senanayake

Sanjaya Senanayake


Chemistry Division
Building 555
Brookhaven National Laboratory
P.O. Box 5000
Upton, NY 11973-5000

Phone: (631) 344-4343
Lab Phone: (631) 344-4347
FAX:    (631) 344-5815

Catalysis: Reactivity and Structure


Doctorate of Philosophy (Ph.D) in Chemistry, 2006
The University of Auckland, New Zealand.

Bachelor of Technology in Materials with Honours (B.Tech (Hons)), 2001
The University of Auckland, New Zealand.

Research Experience

Chemist, Brookhaven National Laboratory (BNL)
The Chemistry Division, 2018-Present

Associate Chemist, Brookhaven National Laboratory (BNL)
The Department of Chemistry, 2014-2018

Assistant Chemist, Brookhaven National Laboratory (BNL)
The Department of Chemistry, 2012-2014

Postdoctoral Research Associate - Brookhaven National Laboratory (BNL)
The Department of Chemistry, Sept 2008 - 2012.

Postdoctoral Research Associate - Oak Ridge National Laboratory (ORNL)
Chemical Sciences Division, Aug 2005 - 2008.

Research Interests

Heterogeneous Catalysis, surface science, synchrotron techniques, electron microscopy, nanoparticles, metal oxide chemistry, model and powder catalysts.


Complete list of publications

Selected Publications

  1. Mudiyanselage, K.; Senanayake, S. D.; Feria, L.; Kundu, S.; Baber, A. E.; Graciani, J.; Vidal, A. B.; Agnoli, S.; Evans, J.; Chang, R.; Axnanda, S.; Liu, Z.; Sanz, J. F.; Liu, P.; Rodriguez, J. A.; Stacchiola, D. J. Importance of the Metal-Oxide Interface in Catalysis: In Situ Studies of the Water-Gas Shift Reaction by Ambient-Pressure X-ray Photoelectron Spectroscopy. Angewandte Chemie-International Ed. 2013, 52 (19), 5101-5.
  2. Senanayake, S. D.; Stacchiola, D.; Rodriguez, J. A. Unique Properties of Ceria Nanoparticles Supported on Metals: Novel Inverse Ceria/Copper Catalysts for CO Oxidation and the Water-Gas Shift Reaction. Accounts of Chemical Research 2013, 46(8), 1702-17011.
  3. Xu, W.; Si, R.; Senanayake, S. D.; Llorca, J.; Idriss, H.; Stacchiola, D.; Hanson, J. C.; Rodriguez, J. A. In situ studies of CeO2-supported Pt, Ru, and Pt-Ru alloy catalysts for the water-gas shift reaction: Active phases and reaction intermediates. Journal of Catalysis 2012, 291, 117-126.
  4. Senanayake, S. D.; Sadowski, J. T.; Evans, J.; Kundu, S.; Agnoli, S.; Yang, F.; Stacchiola, D.; Flege, J. I.; Hrbek, J.; Rodriguez, J. A. Nanopatterning in CeOx/Cu(111): A New Type of Surface Reconstruction and Enhancement of Catalytic Activity. Journal of Physical Chemistry Letters 2012, 3 (7), 839-843.
  5. Senanayake, S.; Evans, J.; Agnoli, S.; Barrio, L.; Chen, T.; Hrbek, J.; Rodriguez, J. Water-Gas Shift and CO Methanation Reactions over Ni-CeO2(111) Catalysts. Topics in Catalysis 2011, 54 (1-4), 34-41.
  6. Yang, F.; Kundu, S.; Vidal, A. B.; Graciani, J.; Ramirez, P. J.; Senanayake, S. D.; Stacchiola, D.; Evans, J.; Liu, P.; Fdez Sanz, J.; Rodriguez, J. A. Determining the Behavior of RuO(x) Nanoparticles in Mixed-Metal Oxides: Structural and Catalytic Properties of RuO(2)/TiO(2)(110) Surfaces. Angewandte Chemie-International Edition 2011, 50 (43), 10198-10202.
  7. Park, J.; Graciani, J.; Evans, J.; Stacchiola, D.; Senanayake, S.; Barrio, L.; Liu, P.; Sanz, J.; Hrbek, J.; Rodriguez, J. Gold, Copper, and Platinum Nanoparticles Dispersed on CeOx/TiO2(110) Surfaces: High Water-Gas Shift Activity and the Nature of the Mixed-Metal Oxide at the Nanometer Level. Journal of the American Chemical Society 2010, 132 (1), 356-363.
  8. Senanayake, S.; Stacchiola, D.; Evans, J.; Estrella, M.; Barrio, L.; Perez, M.; Hrbek, J.; Rodriguez, J. Probing the reaction intermediates for the water-gas shift over inverse CeOx/Au(111) catalysts. Journal of Catalysis 2010, 271 (2), 392-400.
  9. Zhou, G.; Barrio, L.; Agnoli, S.; Senanayake, S.; Evans, J.; Kubacka, A.; Estrella, M.; Hanson, J.; Martinez-Arias, A.; Fernandez-Garcia, M.; Rodriguez, J. High Activity of Ce1-xNixO2-y for H-2 Production through Ethanol Steam Reforming: Tuning Catalytic Performance through Metal-Oxide Interactions. Angewandte Chemie-International Edition 2010, 49 (50), 9680-9684.
  10. Senanayake, S.; Gordon, W.; Overbury, S.; Mullins, D. Adsorption and Reaction of Acetone over CeOx(111) Thin Films. Journal of Physical Chemistry C 2009, 113 (15), 6208-6214.
  11. Senanayake, S.; Stacchiola, D.; Liu, P.; Mullins, C.; Hrbek, J.; Rodriguez, J. Interaction of CO with OH on Au(111): HCOO, CO3, and HOCO as Key Intermediates in the Water-Gas Shift Reaction. Journal of Physical Chemistry C 2009, 113 (45), 19536-19544.
  12. Senanayake, S.; Mullins, D. Redox pathways for HCOOH decomposition over CeO2 surfaces. Journal of Physical Chemistry C 2008, 112 (26), 9744-9752.
  13. Senanayake, S.; Zhou, J.; Baddorf, A.; Mullins, D. The reaction of carbon monoxide with palladium supported on cerium oxide thin films. Surface Science 2007, 601, 3215-3223.