Geoffrey McCool

Geoffrey McCool

Senior Product Engineer

  • Researches, develops and synthesizes electrocatalysts
  • Administers technology transfer and scale-up of electrocatalysts.

Geoff McCool began his research as a Senior Scientist at Nanostellar, where he improved diesel oxidation and NO oxidation catalysts. As a senior Product Engineer with Pajarito Powder, Mr. McCool has been developing and scaling up both PGM and PGM-free fuel cell and electrolyzer catalysts, to meet the United States Department of Energy targets for platinum reduction, as well as meeting other customer specifications. Mr. McCool takes pride in the notion that his position involves incrementally and iteratively making improvements with catalysts that provide clean energy and a sustainable future.


U. C. Davis, M.S. Materials Science 2004
CSU Hayward, B.S. Chemistry, 2001

Patents, Publications and Presentations

  • Patent: Palladium—gold catalyst synthesis, Patent number: 9272266
  • Patent: Mixed phase oxide catalysts, Patent number: 9457344
  • Mixed Phase Oxide Catalyst Based on Mn-Mullite AMn2O5 (A=Sm, Gd) for NO Oxidation in Diesel Exhaust. Science, 2012
  • Cassell, A.M., et al., Carbon nanotube networks by chemical vapor deposition. Applied Physics Letters. 82(5): p. 817-19. 2003
  • Bishop, D.B., et al., X-ray absorption spectroscopy of thiocrown compounds used in the remediation of mercury-contaminated water. Microchemical Journal. 71(2-3 Special Issue SI): p. 247-254, 2002
  • Durable Engineered Catalyst Supports and Economic MOF-Based PMF Oxygen-Reaction Catalysts, Oral Presentation, ECS 10-13-15
  • Structural and mechanistic basis for the high activity of Fe–N–C catalysts toward oxygen reduction Energy Environ. Sci., 9, 2418, DOI: 10.1039/c6ee01160h, 2016
  • Effects of Synthesis Conditions on Structure and Surface Properties of SmMn2O5 Mullite-type Oxide Article in Applied Surface Science 385 DOI: 10.1016/j.apsusc.2016.05.151, 2016
  • Long-wavelength emitting nanocrystals for bioassay applications Article in Proceedings of SPIE – The International Society for Optical Engineering DOI: 10.1117/12.451573, 2002
  • Highly stable precious metal-free cathode catalyst for fuel cell application Journal of Power Sources Volume 327, 30