Titanium dioxide-supported non-precious metal oxygen reduction electrocatalyst.
A new non-precious metal oxygen reduction catalyst was developed via heat treatment of in situ polymerized polyaniline onto TiO(2) particles in the presence of Fe species. The TiO(2) provides for improved performance relative to a carbon black-based catalyst and, at a high catalyst loading, allows for reducing the performance gap between non-precious-metal catalyst and Pt/C to ca. 20 mV in RDE testing.
Wu
Gang
G
Materials Physics & Applications Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA. wugang@lanl.gov
Nelson
Mark A
MA
Mack
Nathan H
NH
Ma
Shuguo
S
Sekhar
Praveen
P
Garzon
Fernando H
FH
Zelenay
Piotr
P