TY  - JOUR
AU  - Hamill, Joseph
AU  - Zhour, Kazem
AU  - Diddens, Diddo
AU  - Baghernejad, Masoud
TI  - Significant two-step potential-induced surface reconstruction observed on Au(1 1 1) in aqueous sulfuric acid
JO  - Electrochemistry communications
VL  - 140
SN  - 1388-2481
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - FZJ-2023-00898
SP  - 107332
PY  - 2022
AB  - We report in this communication, through in situ STM images correlated with time, and ab initio simulations of binding energies, how potential-induced surface reconstruction is formed on Au(1 1 1) single crystal in 0.1 M H2SO4. It was found that while the electrode potential after lifting the reconstructed surface is switched back to a more negative value than the potential of zero charge, the formation process of the reconstructed surface goes through two consecutive routes. In the more kinetically favorable step, and within a few minutes, the reconstructed surface follows three different lattice directions with a high proportion of semi zig-zag structures. However, by maintaining the negative applied potential, the surface reconstruction rearranges to a straighter reconstructed pattern in the second step, which is more energetically favorable.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000891239800002
DO  - DOI:10.1016/j.elecom.2022.107332
UR  - https://juser.fz-juelich.de/record/943288
ER  -