This title appears in the Scientific Report :
2023
Please use the identifier:
http://hdl.handle.net/2128/34064 in citations.
Please use the identifier: http://dx.doi.org/10.1016/j.elecom.2022.107332 in citations.
Significant two-step potential-induced surface reconstruction observed on Au(1 1 1) in aqueous sulfuric acid
Significant two-step potential-induced surface reconstruction observed on Au(1 1 1) in aqueous sulfuric acid
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 recons...
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Personal Name(s): | Hamill, Joseph |
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Zhour, Kazem / Diddens, Diddo / Baghernejad, Masoud (Corresponding author) | |
Contributing Institute: |
Helmholtz-Institut Münster Ionenleiter für Energiespeicher; IEK-12 |
Published in: | Electrochemistry communications, 140 (2022) S. 107332 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2022
|
DOI: |
10.1016/j.elecom.2022.107332 |
Document Type: |
Journal Article |
Research Program: |
Elektrolytformulierungen für Lithiumbatterien der nächsten Generation mit großer Energiedichte und hoher Beständigkeit Fundamentals and Materials |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1016/j.elecom.2022.107332 in citations.
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. |