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.
Wan
Li-Jun
LJ
Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China. lijun_wan@yahoo.com
Moriyama
Takahiko
T
Ito
Megumi
M
Uchida
Hiroyuki
H
Watanabe
Masahiro
M