| AVS 65th International Symposium & Exhibition | |
| Applied Surface Science Division | Wednesday Sessions |
| Session AS+SE-WeA |
| Session: | Industrial and Practical Applications of Surface Analysis |
| Presenter: | Kateryna Artyushkova, University of New Mexico |
| Authors: | K. Artyushkova, University of New Mexico N. Danilovic, Lawrence Berkeley Lab, University of California, Berkeley C. Capuano, Proton on site A. Serov, Pajarito Powder LLC P. Atanassov, University of New Mexico |
| Correspondent: | Click to Email |
The stability of materials used used in anodes and cathodes in fuel cells and electrolyzers is a critical factor for practical industrial applications. To improve the longevity, it is important to link the chemical structure to degradation mechanisms and changes in the surface composition of the catalyst on the electrodes. Application of x-ray photoelectron spectroscopy (XPS) to probe structure of catalytic materials and their degradation is becoming an important analytical approach due to its accessibility and quantitative chemical information provided. This talk will present several examples of application of high-resolution XPS for analysis of the chemistry of electrodes and changes that are occurring during operation in several technological platforms, such as proton-exchange membrane fuel cells (PEMFCs), alkaline membrane fuel cells (AEMFC), direct methanol fuel cells (DMFC), direct hydrazine fuel cells (DHFC) and water electrolyzers (WE).