In situ STM imaging of surface dissolution and rearrangement of a Pt-Fe alloy electrocatalyst in electrolyte solution.
The formation of a Pt skin layer with predominantly (111)-oriented facets induced by dissolution of Fe atoms in a Pt-Fe alloy for fuel cell applications is investigated for the first time by using in situ electrochemical STM in 0.1 M HClO4 solution.
Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China. lijun_wan@yahoo.com
Li-Jun
LJ
Wan
Takahiko
T
Moriyama
Megumi
M
Ito
Hiroyuki
H
Uchida
Masahiro
M
Watanabe