Faculty and Staff
John W. Weidner
|Title:||Professor, Chemical Engineering
Chair & CEC Campaign for Excellence Professor
|College of Engineering and Computing|
|Website:||Hydrogen and Fuel Cell|
Swearingen Engineering Center
CV of Dr. Weidner
Ph.D., North Carolina State University, 1991
B.S., University of Wisconsin - Madison, 1986
Professor Weidner's research group is involved in the synthesis and characterization of electrocatalysts and electrochemically active materials, and the design and operation of electrochemical processes using sophisticated mathematical models (e.g., advanced batteries, fuel cells, and electrochemical reactors). Their current research projects related to renewable-energy applications are: 1) predicting the effect of volume change in intercalation electrodes (e.g., lithium in silicon); 2) synthesizing novel bi- and tri-metallic electrocatalysts for proton-exchange membrane (PEM) fuel cells and direct methanol fuel cells (DMFC); 3) developing electrocatalysts for use in thermochemical cycles for large scale hydrogen production from solar and nuclear energy (e.g., hybrid-sulfur process), 4) studying corrosion via molten-salts used in concentrated solar-power systems, and 5) predicting multi-phase transport through porous media [e.g., gas diffusion layer (GDL); micro porous layer (MPL)] used in PEM fuel cells, electrolyzers, and electrochemical reactors.
T. R. Garrick, C. H. Wilkins, A. T. Pingitore, J. Mehlhoff, A. Gulledge, B. C. Benciwicz,and J. W. Weidner, “Characterizing Voltage Losses in an SO2 Depolarized Electrolyzer using Sulfonated Polybenzimidazole Membranes,” J. Electrochem. Soc., 164(14), F1591-F1595 (2017).
T. R. Garrick, K. Higa, S. Wu, Y. Dai, X. Huang, V. Srinivasan, and J. W. Weidner, “Modeling Battery Performance Due to Intercalation Driven Volume Change in PorousElectrodes,” J. Electrochem. Soc., 164(11), E3592-E3597 (2017).
P. Satjaritanun, J. W. Weidner, S. Hirano, Z. Lu, Y. Khunatorn, S. Ogawa, S. E. Litster, A. D. Shum, I. V. Zenyuk, and S. Shimpalee “Micro-Scale Analysis of Liquid Water Breakthrough inside Gas Diffusion Layer for PEMFC Using X-ray Computed Tomography and Lattice Boltzmann Method,” J. Electrochem. Soc., 164(11), E3359-E3371 (2017).
J. M. Tengco, B. Tavakoli, Y. Zhang, A. Wongkaew, J. R. Regalbuto, J. W. Weidner, and J. R. Monnier, “Synthesis and Electrochemical Evaluation of Carbon Supported Pt-Co Bimetallic Catalysts Prepared by Electroless Deposition and Modified Charge Enhanced Dry Impregnation,” Catalysis, 6, 83 (2016).
B. A. Tavakoli-Mehrabadi, J. W. Weidner, B. L. Garcia-Diaz, M. J. Martinez-Rodriguez, L. C. Olsen, and S. Shimpalee, “Multidimensional Modeling of Nickel Alloy Corrosion inside High Temperature Molten Salt Systems,” J. Electrochem. Soc., 163(14), C830-C838 (2016).
J. W. Weidner “Electrolyzer Performance for Producing Hydrogen via a Solar-Driven Hybrid-Sulfur Process,” J. App. Electrochem., 46, 829-839 (2016).
T. R. Garrick, W. Diao, J. M. Tengco, J. Monnier, and J. W. Weidner, “The Effect of the Surface Composition of Ru-Pt Bimetallic Catalysts for Methanol Oxidation,”Electrochim. Acta, 195, 106-111 (2016).