Highly Efficient and Stable Buckypaper-Based Electrodes for PEM Fuel Cells
W. Zhu, J.P. Zheng, R. Liang, B. Wang, C. Zhang
Florida State University, US
Keywords: carbon nanotube, carbon nanofiber, PEM fuel cell, durability, performance
Abstract:The most critical issues hindering the commercialization of PEMFC are the high costs, especially the precious metal costs, relatively low performance at low Pt loading, and poor long-term durability. In this work, a new design for cathode catalyst layer was developed to improve the Pt utilization and cell performance with an optimized microstructure of catalyst. This new catalyst is comprised of Pt nanoparticles dispersed on carbon nanotube/nanofiber (CNT/CNF) based buckypaper (BP). This process resulted in good stability of the Pt/buckypaper electrodes due to the high corrosion resistance of buckypaper.