Platinum has been the electrode material of choice for the oxygen reduction reaction which takes place in fuel cells. However it is expensive, and previous research using alloys of Pt with Co, Ni and Fe have required high Pt ratios.
Now researchers working at the Brookhaven National Laboratory have synthesized nanoparticles with a carbon-supported IrNi core and a surface monolayer of platinum. These nano-electocatalysts have an approximately 3 times higher Pt mass activity than currently available commercial Pt/C electrocatalysts.
Read the full details of this HOT EES paper:
Bimetallic IrNi core platinum monolayer shell electrocatalysts for the oxygen reduction reaction
Kurian A. Kuttiyiel, Kotaro Sasaki, YongMan Choi, Dong Su, Ping Liu and Radoslav R. Adzic
DOI: 10.1039/C1EE02067F
