DeCaluwe Research Group Members
Clean Energy · Clean Water
Electrochemistry · Surface Science · Reacting Flows
Jamie's current research involves the use of protonic-ceramic membrane devices for reforming, separation, and compression of Hydrogren fuel from readily available fuels such as methane and ethanol.
Protonic-ceramic membranes are high temperature membranes that dominantly conduct protons. The membrane operating conditions and material compatibility allow for creative process intensification technologies. This research focuses on combining steam methane reforming, hydrogen separation, and hydrogen compression while operating at autothermal conditions. Jamie's work uses a mixture of experiments and numerical simulation to understand and overcome limitations in this emerging technology.
Jamie earned his Masters of Science degree in the DeCaluwe Lab in Summmer, 2016. Thesis topic: "The effect of membranes in methane dehydroaromatization on a bifunctional Mo/H-ZSM-5 cartalyst in a packed bed reactor."
Publications: Kee, B., Karakaya, C., Zhu, H. DeCaluwe, S.C., Kee, R.J., "The influence of hydrogen-permeable membranes and pressure on methane dehydroaromatization in packed-bed catalytic reactors." Ind. Eng. Chem. Res., 56(13), 2017, p. 3551—3559. Citations: 2.
John has been doing research in the DeCaluwe group since Fall 2014. John's work has focused on exploring the structure-property relationsips for thin-film Nafion, to understand transport limitations in low-temperature PEM Fuel Cells. John's work has utilized a mixture of numerical simulations and advanced characterization techniques, such as neutron reflectometry, quartz crystal microbalance, and spectroscopic ellispsometry.
John's awards have included a CSM Undergraduate Research Fellowship and a NIST Summer Undergraduate Research Fellowship, as well as internships at Gates Corporation and Tesla Motor Corp. After graduation in May of 2018, he will join the Process Engineering group at Tesla Motor Corp. in Fremont, CA. His interests include energy production and storage technologies, sustainability, polymers, and advanced manufacturing.
Publications: DeCaluwe, S.C., Baker, A.M., Bhargava, P., Fischer, J.E., Dura, J.A., "Structure-property relationships at Nafion thin-film interfaces: Thickness effects on hydration and anisotropic ion transport." Nano Energy, 46, 2018, p. 91—100.
Brooke is currently researching material sets for efficient and durable lithium-air batteries, with a focus on understanding the role of conductive polymer binders in the battery cathodes. She is helping to build key battery fabrication infrastructure and protocols in our lab. Her work will seek to understand the effects of replacing inactive polymer binders (which are required to hold battery cathodes together) with active, ion-conducting polymers.
Brooke is majoring in Mechanical Engineering and minoring in Public Affairs through the CSM Honors Program. After graduation, in May 2018, Brooke will work for ExxonMobil in their Baton Rouge Refinery and Chemical Plant as a Contact Engineer, troubleshooting failures and managing the long-term maintenance of large mechanical machinery.
Daniel is assisting in the design and assembly of experimental infrastructure for the testing of lithium air batteries. These tests will include electrochemical testing, coupled with mass spectometry of the exhaust gases (i.e. Differential Electrochemical Mass Spectometry, DEMS) for detailed analysis of the dominant reaction pathways in the operating batteries. These experiments will require precise control of the battery's temperature and the composition of the gases sent to the battery cathode.
Christopher H. Lee (MS, 2016)
Christopher's research focused on characterizing the solid electrolyte interphase (SEI), a thin protective layer that forms in lithium ion batteries. Long-term degradation of the SEI severely limits the durability and safety of lithium-ion batteries. Improving the SEI durability is limited by a poor understanding of its properties, and Chris's work used neutron reflectometry and quartz crystal microbalance for precise measurements of the SEI chemical makeup and structure.
Christopher received the "Outstanding Student Poster" Award at the 37th Annual Symposium on Applied Surface Science (AVS).
Christopher earned his Masters of Science degree in the DeCaluwe Lab in Summmer, 2016. Thesis topic: "Multimodal evaluation of the lithium ion battery solid electrolyte interphase: Quantifying elementary chemistry via in operando neutron refectivity and electrochemical quartz crystal microbalance."
Christopher is currently pursuing a degree in Computer Science at University of Colorado, Colorado Springs.