D-4.1 Non-PGM Cathode Catalysts

Thursday, 4 October 2018: 08:00-12:00
Star 2 (Sunrise Center)
Chairs:
Jinwoo Lee and Plamen Atanassov
08:00
Molecular Probes for the Identification and Quantification of Active Sites in PGM-Free ORR Catalysts
S. Komini Babu, U. Martinez, E. F. Holby (Los Alamos National Laboratory), N. Kariuki (Argonne National Laboratory), K. P. Ramaiyan (Los Alamos National Laboratory), K. Artyushkova (Center for Micro-Engineered Materials), G. M. Purdy, H. T. Chung (Los Alamos National Laboratory), D. J. Myers (Argonne National Laboratory), and P. Zelenay (Los Alamos National Laboratory)
08:20
Formation of Metal-Nitrogen Sites in Atomically-Dispersed Catalysts Observed By in Situ Microscopy
D. A. Cullen, K. L. More (Oak Ridge National Laboratory), D. J. Myers (Argonne National Laboratory), G. Wu (University at Buffalo, the State University of New York), S. Litster (Carnegie Mellon University), H. Xu (Giner, Inc.), H. T. Chung, and P. Zelenay (Los Alamos National Laboratory)
09:20
Understanding Pyrolyzed Fe-N-C Catalysts By Bridging Density Functional Theory Calculations and Mössbauer Spectroscopy
P. Atanassov, I. Matanovic (University of New Mexico), T. Mineva (CNRS, University of Montpellier), M. T. Sougrati (Institut Charles Gerhardt), L. Stievano (Réseau sur le Stockage Electrochimique de l’Energie, RS2E), and F. Jaouen (CNRS - Université De Montpellier)
09:40
Intermission
10:00
High-Throughput Performance Testing in 25-Electrode Array Fuel Cell for Platinum Group Metal-Free Catalysts
J. Park, N. Kariuki, D. J. Myers (Argonne National Laboratory), H. T. Chung, U. Martinez, and P. Zelenay (Los Alamos National Laboratory)
10:20
X-Ray Absorption Spectroscopy, Scattering, and Tomography Characterization of Platinum Group Metal-Free Oxygen Reduction Reaction Catalysts and Electrodes
D. J. Myers, A. J. Kropf, D. Yang, C. Yang, H. Mistry, F. Cetinbas, R. Ahluwalia, J. Park, N. Kariuki (Argonne National Laboratory), S. Komini Babu, H. T. Chung, and P. Zelenay (Los Alamos National Laboratory)
10:40
Fe/N/C Cathode Catalyst Prepared from a Low Content of Fe Precursor to Obtain Atomically Dispersed Metal Center
Y. Nabae, S. Nagata, T. Aoki (Tokyo Institute of Technology), H. Tanida, and H. Imai (Device Analysis Department, NISSAN ARC, Ltd.)
11:00
Activity and Durability Insights for Atomically Dispersed (AD)Fe-N-C Oxygen Reduction Catalysts
H. T. Chung (Los Alamos National Laboratory), D. A. Cullen (Oak Ridge National Laboratory), X. Yin (Boston University), S. Komini Babu (Los Alamos National Laboratory), K. L. More (Oak Ridge National Laboratory), D. J. Myers (Argonne National Laboratory), and P. Zelenay (Los Alamos National Laboratory)
11:20
Composition Effects on the Aqueous-Electrolyte Stability of Fe-Based O2-Reduction Catalysts for PEFC Cathodes
J. Herranz, K. Ebner (Electrochemistry Laboratory, Paul Scherrer Institut), M. Nachtegaal (In situ X-Ray Spectroscopy, Paul Scherrer Institut), B. Kim (Electrochemistry Laboratory, Paul Scherrer Institut), and T. J. Schmidt (ETH Zürich, Paul Scherrer Institute)
11:40
Identification of Possible Degradation Mechanisms of PGM-Free Electrocatalysts during Fuel Cell Operation
U. Martinez, S. Komini Babu, E. F. Holby, X. Yin, B. T. Manard, and P. Zelenay (Los Alamos National Laboratory)