Headshot of ARPA-E Fellow Dr. Elizabeth Shoenfelt Troein

Dr. Elizabeth Shoenfelt Troein


Dr. Elizabeth Shoenfelt Troein currently serves as an ARPA-E fellow. Her interests include advancing Negative Emissions Technologies, including accelerated geomineralization, direct carbon capture, and others.  

Dr. Troein is a biogeochemist by training, studying a range of global biogeochemical cycles and their impacts on climate. She graduated from Princeton University in 2013 with a BA in Geosciences and received her PhD from Columbia University and the Lamont-Doherty Earth Observatory. She also completed a Crosby Postdoctoral Fellowship at MIT in the Department of Earth, Atmospheric and Planetary Sciences.

Her research expertise includes synchrotron-based analytical chemistry techniques at the Stanford Synchrotron Radiation Lightsource at SLAC and at the Advanced Photon Source at Argonne National Laboratory. At these facilities, she determined the speciation of iron in dust and marine sediments to show the impact of weathering on iron mineralogy and bioavailability to phytoplankton, which impacts atmospheric carbon dioxide and climate on glacial-interglacial timescales.