Sam McKinney

Sam McKinney

Lead MEA Technician

  • Develops and optimizes electrode construction techniques tailored for VariPoreTM Engineered Catalyst Supports (ECSs), as well as other technologies licensed from Los Alamos National Laboratories, University of New Mexico and Northeastern University
  • Develops testing protocols for investigating various facets of MEA and catalyst construction
  • Analyzes MEA test data and associated bookkeeping to measure progress.

Sam McKinney began working with Pajarito Powder as an intern in 2013 and has since moved into a position that facilitates our research in the direction of electrolyzer catalysts. His work enables real-world testing and evaluation of PGM-free catalysts and ECSs in both fuel cell and electrolyzer applications. Mr. McKinney is our ranking technician in the production of electrodes for PGM-free catalysts, and is currently working to optimize production at scale, as it relates to high- and low-voltage performances.


Washington University, St. Louis Missouri B.A. Biochemistry, 2013

Publications and Presentations

  • Herrmann, Jonathan, et al. “Structure and mechanism of soybean ATP sulfurylase and the committed step in plant sulfur assimilation.” Journal of Biological Chemistry 289.15: 10919-10929, 2014
  • Yarlagadda, Venkata, et al. “Preparation of PEMFC Electrodes from Milligram-Amounts of Catalyst Powder.” Journal of The Electrochemical Society 164.7: F845-F849, 2017
  • Li, Jingkun, et al. “Structural and mechanistic basis for the high activity of Fe–N–C catalysts toward oxygen reduction.” Energy & Environmental Science9.7: 2418-2432, 2016
  • Gumeci, Cenk, et al. “Effect of pyrolysis pressure on activity of Fe–N–C catalysts for oxygen reduction.” Journal of Materials Chemistry A 3.43: 21494-21500, 2015
  • Serov, Alexey, et al. “Highly stable precious metal-free cathode catalyst for fuel cell application.” Journal of Power Sources 327: 557-564, 2016