Nanowerk July 2, 2022
An international team of researchers (Hong Kong, USA – Argonne National Laboratory, China, Morocco) has designed a hybrid electrocatalyst that consists of atomically dispersed Pt and Fe single atoms and Pt–Fe alloy nanoparticles. Its Pt mass activity is 3.7 times higher than that of commercial Pt/C in a fuel cell. The fuel cell with a low Pt loading in the cathode shows an excellent durability, with a 97% activity retention after 100,000 cycles and no noticeable current drop at 0.6 V for over 200 hours. These results highlight the importance of the synergistic effects among active sites in hybrid electrocatalysts and provide an alternative way to design more active and durable low-Pt electrocatalysts for electrochemical devices…read more. Open Access TECHNICAL ARTICLEÂ
Abstract. Credit: Nature Catalysis volume 5, pages503–512 (2022)Â