Tim Geary Email & Phone Number

Danbury, CT, US

• Facilitated fundamental research supporting FCE’s first joint project with ExxonMobil Research & Engineering using molten carbonate fuel cells for CO2 capture.
• Designed and implemented electrochemical experiments that revealed a drastic change in cathode mechanism unique to this application
• Greatly improved cell and stack-level performance and stability through engineering the cathode, electrolyte, and current collectors
• Identified the rate-limiting phenomena using a physics-based electrode model with Python
• Highlighted results and data analysis in weekly presentations and technical reports both internally and to ExxonMobil
• Analyzed the electrochemical performance of surface-coated solid oxide fuel cell cathodes via impedance spectroscopy to characterize and understand drivers for degradation

Seattle, WA, US

• Analyzed thin film (< 70 nm) solid oxide fuel cell microelectrodes, isolating surface phenomena from the bulk.
• Assessed the long-term stability and degradation mechanisms of state-of-the-art porous oxygen electrodes.
• Designed novel hardware and software platform for simultaneous global nonlinear impedance and local scanning probe microscopy measurements.

Seattle, WA, US

• Studied mixed ionic and electronic conducting electrodes for solid oxide fuel cells and electrolyzers.
• Performed nonlinear impedance analysis on perovskite electrodes in both oxygen and hydrogen-water environments.
• Developed nonlinear analytical and numerical multi-dimensional models capturing relevant kinetic, thermodynamic, and transport phenomena for these systems.
• Designed, built, and performed a variation of coulometric titration for measuring minute changes in defect chemistry for oxides.

Alexandria, VA, US

• Collaborated with Confederated Salish & Kootenai Tribes to assess possible solar, wind, and bioenergy implementations.
• Performed feasibility analysis for remotely pyrolyzing agricultural residue.

US

• Water quality analysis and consultation.
• Assessment of treatment facility proposal: effects of noxious gas diffusion, water quality adjustment, permitting, and construction.

Doctor Of Philosophy (Ph.D.), Chemical Engineering

Bachelor Of Science (B.S.), Chemical Engineering