Please see this link: https://careers.pnnl.gov/jobs/4940?lang=en-us
We are seeking an outstanding Post Doctorate researcher to join our group to investigate geochemical processes that control surface passivation and the fate of critical elements (CEs) during mineral carbonation/sulfidization of the divalent silicates that make up low-grade, yet abundant ores of nickel and cobalt. Carbonation has great potential to improve the economic viability of CE extraction from low-grade ores, both by lowering ore-processing costs and helping the mining industry reach net-zero CO2 emissions. Yet, the molecular-level mechanisms that govern the fate of CEs during silicate carbonation and concurrent sulfidization are unclear.
The successful candidate will have a strong background in experimental geochemistry, nanoscale materials synthesis and characterization, surface characterization techniques, and especially spectroscopic methods, such as infrared (IR), nuclear magnetic resonance spectroscopy (NMR), and electrical impedance spectroscopies (EIS) for following mineral reactivity in situ. The successful candidate will take advantage of advanced ambient and high-pressure IR, NMR and EIS instrumentation at PNNL to help build a fundamental understanding of divalent metal silicate carbonation/sulfidation for nickel and cobalt extraction. Experience with kinetics, interfacial chemistry, and solution thermodynamics would be beneficial. The candidate will work as part of a team that includes world-leaders in carbonate and sulfur geochemistry, interfacial geochemistry, in situ IR, NMR and EIS methods for studying mineral reactivity and transformations, synchrotron-based X-ray scattering techniques, secondary ion mass spectrometry (SIMS), microfluidics, and molecular computational simulations. The candidate will also prepare manuscripts for publication, present the research work internally and externally at national/international conferences, and develop new ideas for the funded research.