Materials Scientist
Materials Scientist

Biography

Zack Kennedy is a materials scientist in the National Security Directorate at Pacific Northwest National Laboratory (PNNL). He is experienced in the synthesis and characterization of small molecules and inorganic materials, surface science, and advanced manufacturing. As a research staff member at PNNL, he has focused on developing three-dimensional (3-D)-printed feedstocks and devices for separations, sensing, and anti-counterfeiting applications. He has concentrated also on modification of diamond nanomaterials for quantum information science applications, the mining of uranium from seawater, and various other projects supporting national security missions. His current interests include testbeds for 3-D printing, applied polymer science, materials characterization, and signature discovery. He serves as the technical leader for an advanced manufacturing focus area on the Chemical Dynamics Initiative at PNNL. He received a BS in chemistry from the College of Charleston and PhD in chemistry from the University of Oregon.

Disciplines and Skills

  • Materials Chemistry
  • Additive Manufacturing
  • Nanoscience
  • Synthetic Chemistry
  • Polymer Science
  • Composites
  • Molecular Recognition
  • Sensors

Education

  • PhD in Chemistry/Nanoscience, University of Oregon
  • BS, College of Charleston

Affiliations and Professional Service

Materials Research Society

Awards and Recognitions

  • Pathways to Excellence Award, PNNL, 2021
  • National Security Directorate of the Year Award for Scientific Impact, PNNL, 2019
  • Outstanding Performance Awards, PNNL

Publications

2025

2023

  • Burns C., S. Jana, A. Lall, Z.C. Kennedy, M.D. Fenn, J.A. Silverstein, and L.M. Seymour, et al. 2023. Preliminary Characterization and Evaluation on FFF Manufactured 316H and ODS Steels. PNNL-34985. Richland, WA: Pacific Northwest National Laboratory. Preliminary Characterization and Evaluation on FFF Manufactured 316H and ODS Steels
  • Gao P., S.E. Muller, J. Chun, L. Zhong, and Z.C. Kennedy. 2023. "Effects of 2D filler on rheology of additive manufacturing polymers: Simulation and experiment on polyetherketoneketone-mica composites." Polymer 269. PNNL-SA-177886. doi:10.1016/j.polymer.2023.125722

2022

  • Arnold A.M., A.M. Bradley, K.L. Taylor, Z.C. Kennedy, and K.M. Omberg. 2022. "The Promise of Emergent Nanobiotechnologies for In Vivo Applications and Implications for Safety and Security." Health Security 20, no. 5:408-423. PNNL-SA-169771. doi:10.1089/hs.2022.0014
  • Kennedy Z.C., J.F. Christ, M.D. Fenn, L. Zhong, W. Chouyyok, A.M. Arnold, and A.C. Denny, et al. 2022. "Mica filled polyetherketoneketones for material extrusion 3D printing." Additive Manufacturing 49. PNNL-SA-165225. doi:10.1016/j.addma.2021.102492

2021

  • Arnold A.M., Z.C. Kennedy, J.A. Silverstein, J.F. Ellis, and J.R. Hutchison. 2021. "Pearlescent mica-doped alginate as a stable, vibrant media for two-dimensional and three-dimensional art." ACS Omega 6, no. 29:18694-18701. PNNL-SA-160738. doi:10.1021/acsomega.1c01453
  • Strube J.F., M. Schram, S. Rustam, Z.C. Kennedy, and T. Varga. 2021. "Identifying build orientation of 3D-printed materials using convolutional neural networks." Statistical Analysis and Data Mining 14, no. 6:575-582. PNNL-SA-153051. doi:10.1002/sam.11497

2020

  • Cameron M.I., D. Morisco, D. Hofstetter, E. Uman, J. Wilkinson, Z.C. Kennedy, and S.A. Fontenot, et al. 2020. "Systematically Improving Espresso: Insights from Mathematical Modeling and Experiment." Matter 2, no. 3:631 - 648. PNNL-SA-185083. doi:10.1016/j.matt.2019.12.019
  • Fraga C.G., K. Mo, D.G. Abrecht, A.J. Casella, N.E. Uhnak, Z.C. Kennedy, and G.J. Lumetta. 2020. Solvent Exchange. PNNL-30510. Richland, WA: Pacific Northwest National Laboratory. Solvent Exchange
  • Kennedy Z.C., and J.F. Christ. 2020. "Printing Polymer Blends Through in situ Active Mixing During Fused Filament Fabrication." Additive Manufacturing 36. PNNL-SA-146317. doi:10.1016/j.addma.2020.101233
  • Luzi F., M.D. Fenn, J.F. Christ, Z.C. Kennedy, T. Varga, M.S. Hughes, and C.M. Ortiz Marrero. 2020. "Application of entropy and signal energy for ultrasound-based classification of three-dimensional printed polyetherketoneketone components." Journal of the Acoustical Society of America 148, no. 1:292-301. PNNL-SA-151479. doi:10.1121/10.0001581
  • Primera-Pedrozo O.M., C.G. Fraga, A.S. Breton-Vega, M.M. Zumbach, B.P. Wilkins, N.S. Mirjankar, and Z.C. Kennedy. 2020. "Sorption and Desorption Study of a Nerve-Agent Simulant from Office Materials for Forensic Applications." Forensic Chemistry 20. PNNL-SA-152545. doi:10.1016/j.forc.2020.100260
  • Thomas M., M. Schram, K.M. Fox, J.F. Strube, N.S. Solomon-Oblath, R.J. Rallo Moya, and Z.C. Kennedy, et al. 2020. "Distributed heterogeneous compute infrastructure for the study of additive manufacturing systems." MRS Advances 5, no. 29-30:1547-1555. PNNL-SA-150139. doi:10.1557/adv.2020.103
  • Thomas M., M. Schram, K.M. Fox, J.F. Strube, N.S. Solomon-Oblath, R.J. Rallo Moya, and Z.C. Kennedy, et al. 2020. "Distributed heterogeneous compute infrastructure for the study of additive manufacturing systems." MRS Advances 5, no. 29-30:1547-1555. PNNL-SA-147390. doi:10.1557/adv.2020.103

2019

  • Cosimbescu L., D. Malhotra, K.B. Campbell, M.S. Swita, and Z.C. Kennedy. 2019. "Molecular Design and Shear Stability Correlations of Dendritic Polymethacrylates." Molecular Systems Design and Engineering 4, no. 6:1114-1124. PNNL-SA-145231. doi:10.1039/C9ME00081J
  • Hutchison J.R., S.M. Brooks, Z.C. Kennedy, T.R. Pope, B. Kaiser, K.D. Victry, and C.L. Warner, et al. 2019. "Polysaccharide-based liquid storage and transport media for non-refrigerated preservation of bacterial pathogens." PLoS One 14, no. 9:e0221831. PNNL-SA-142625. doi:10.1371/journal.pone.0221831
  • Kennedy Z.C., J.F. Christ, B.W. Arey, L. Zhong, and C.A. Barrett. 2019. "Tunable Porosity in Fused Filament 3D-Printed Blends of Intrinsically Porous Polymer and Thermoplastic Aliphatic Polyesters Polycaprolactone and Polylactic Acid." ACS Applied Polymer Materials 1, no. 3:482-492. PNNL-SA-139794. doi:10.1021/acsapm.8b00172

2018

  • Evans K.A., Z.C. Kennedy, B.W. Arey, J.F. Christ, H.T. Schaef, S.K. Nune, and R.L. Erikson. 2018. "Chemically Active, Porous 3D-Printed Thermoplastic Composites." ACS Applied Materials & Interfaces 10, no. 17:15112-15121. PNNL-SA-129492. doi:10.1021/acsami.7b17565

2017

  • Kennedy Z.C., C.A. Barrett, and M.G. Warner. 2017. "Direct Functionalization of Acid-Terminated Nanodiamond with Azide: Enabling Access to 4-Substituted-1,2,3-Triazole Functionalized Particles." Langmuir 33, no. 11:2790-2798. PNNL-SA-122913. doi:10.1021/acs.langmuir.6b04477
  • Kennedy Z.C., D.E. Stephenson, J.F. Christ, T.R. Pope, B.W. Arey, C.A. Barrett, and M.G. Warner. 2017. "Enhanced anti-counterfeiting measures for additive manufacturing: coupling lanthanide nanomaterial chemical signatures with blockchain technology." Journal of Materials Chemistry C 5, no. 37:9570-9578. PNNL-SA-127746. doi:10.1039/C7TC03348F
  • Kennedy Z.C., J.F. Christ, K.A. Evans, B.W. Arey, L.E. Sweet, M.G. Warner, and R.L. Erikson, et al. 2017. "3D-Printed Poly(vinylidene fluoride) / Carbon Nanotube Composites as a Tunable, Low-Cost Chemical Vapour Sensing Platform." Nanoscale 9, no. 17:5458-5466. PNNL-SA-123459. doi:10.1039/C7NR00617A

2016

  • Kennedy Z.C., A.J. Cardenas, J.F. Corbey, and M.G. Warner. 2016. "2,6-Diiminopiperidin-1-ol: an overlooked motif relevant to uranyl and transition metal binding on poly(amidoxime) adsorbents." Chemical Communications 52, no. 57:8802-8805. PNNL-SA-117149. doi:10.1039/c6cc02488b