PNNL

Dr. Adan Schafer Medina is a chemical engineer focused on enabling research and enhancing tools in the nuclear industry. Since 2013, he has been using experimental electrochemistry in a variety of applications, he specializes in combining electrochemical and spectroscopic techniques to meet the needs of Department of Energy projects.

Schafer Medina was born and raised in Washington State. He attended Washington State University where he received a BS and a doctorate in chemical engineering. Schafer Medina is committed to furthering diversity, equity, and inclusion through mentoring interns and through serving as co-chair for HOLA, PNNL’s Hispanic- and Latinx-serving employee resource group.

• Molten salt electrochemistry
• Chemometric modeling
• Aqueous electrochemistry
• Online monitoring
• Spectroelectrochemistry

• PhD in chemical engineering, Washington State University
• BS in engineering and chemical engineering, Washington State University

• American Chemical Society, Member
• American Institute of Chemical Engineers, Member
• HOLA (a PNNL employee resource group), Co-Chair

2025

• Boily N., H.M. Felmy, A. Schafer Medina, J.M. Bello, S.A. Bryan, and A.M. Lines. 2025. "Development of an Attenuated Total Reflectance-Ultraviolet-Visible Probe for the Online Monitoring of Dark Solutions." ACS Sensors 10, no. 1:122-132. PNNL-SA-195733. doi:10.1021/acssensors.4c00587

2023

• Branch S.D., H.M. Felmy, A. Schafer Medina, S.A. Bryan, and A.M. Lines. 2023. "Exploring the complex chemistry of Uranium within molten chloride salts." Industrial and Engineering Chemistry Research 62, no. 37:14901-14909. PNNL-SA-181742. doi:10.1021/acs.iecr.3c02005

2022

• Felmy H.M., H.E. Lackey, A. Schafer Medina, M.J. Minette, S.A. Bryan, and A.M. Lines. 2022. “Leveraging multiple Raman excitation wavelength systems for process monitoring of nuclear waste streams.” ACS ES&T Water 2, no. 3:465-473. PNNL-SA-166535. doi: 10.1021/acsestwater.1c00408

2021

• Felmy H.M., A.J Clifford, A. Schafer Medina, R.M. Cox, J.M. Wilson, A.M. Lines, and S.A. Bryan. 2021. “On-Line Monitoring of Gas-Phase Molecular Iodine Using Raman and Fluorescence Spectroscopy Paired with Chemometric Analysis” Environmental Science & Technology 55 (6), 3898-3908. doi: 10.1021/acs.est.0c06137