Engineering New Electrocatalysts for Improved Performance and Durability of Hydrogen based Fuel Cells
Abstract
This project relates to generation of novel electrocatalysts (ECs) exploiting the principal investigator's published results on low platinum group metals (PGM) of 10 wt. % F doped Mn0.8Ir0.2O2:10F, EC for oxygen evolution reaction (OER) and CoxCuyPz:S (CCPS), ECs for hydrogen evolution reaction (HER) as promising ECs for proton exchange membrane water electrolysis (PEMWE) including hydrogen evolution reaction (HOR) and oxygen reduction reaction (ORR) electrocatalysts meeting the required targets of >1W/sq. cm@0.7V rated power and proton exchange membrane fuel cell (PEMFC) target performance of > 300 mA/sq. cm @0.8V. Specifically the work entails fabrication of large area electrodes with the above developed ECs utilizing theoretically predicted electrocatalyst loadings, electrode thickness and porosity for utilization in MEA fabrication for PEMFC and PEMWE. Proper experimental correlations between the electrode layer thickness, electrocatalyst loadings and electrode structures with performance, durability, mass and charge transport and polarization losses were established to optimize the electrode layer thickness, porosity and appropriate ECs loadings to achieve the targeted hydrogen and oxygen production rate to meet the desired targets.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 08, 2022
- Accession Number
- AD1173803
Entities
People
- Oleg I Velikokhatnyi
- Prashant N Kumta
Organizations
- University of Pittsburgh