Electrochemical SPM study of 2D phase and 3D phase formation of Zn at the ionic liquid / Au(111) interface [online]
Zn electrodeposition in the under- (UPD) and overpotential (OPD) ranges by means of in-situ Scanning Tunneling Microscopy (STM) was examined, supported by in-situ cyclic voltammetry and chronoamperometrie. The underpotential deposition of Zn follows a layer-by-layer growth. For the first time the fo...
Saved in:
| Main Author: | |
|---|---|
| Format: | Online |
| Language: | English |
| Published: |
KIT Scientific Publishing
2021
|
| Subjects: | |
| Online Access: | 34550 |
| Tags: |
No Tags, Be the first to tag this record!
|
| _version_ | 1869526491741552640 |
|---|---|
| author | Dogel, Jana |
| author_browse | Dogel, Jana |
| author_facet | Dogel, Jana |
| author_sort | Dogel, Jana |
| collection | Directory of Open Access Books |
| description | Zn electrodeposition in the under- (UPD) and overpotential (OPD) ranges by means of in-situ Scanning Tunneling Microscopy (STM) was examined, supported by in-situ cyclic voltammetry and chronoamperometrie. The underpotential deposition of Zn follows a layer-by-layer growth. For the first time the formation of three successive Zn monolayers has been observed in the UPD range. It has been shown, that the UPD of Zn is complicated due to surface alloying. The same growth mechanism extends from the UPD into OPD range until Al bulk deposition sets in. The UPD of Al at 100 mV vs. Zn/Zn(II) is marked by Moiré pattern formation. For the first time in this system the effective tunneling barrier f has been measured by STS. A first insight into the 2D phase formation of electrodeposited Zn at the electrolyte / electrode interface was obtained from STM images at various times and potentials. Before a coherent layer is formed wormlike structures are observed characteristic of spinodal decomposition. This implies a first order phase transition, which has been resolved here for the first time for 2D electrodeposition. |
| format | Online |
| id | doab-20.500.12854ir-46134 |
| institution | Directory of Open Access Books |
| language | eng |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | KIT Scientific Publishing |
| publisherStr | KIT Scientific Publishing |
| record_format | ojs |
| spelling | doab-20.500.12854ir-461342024-04-05T12:39:46Z Electrochemical SPM study of 2D phase and 3D phase formation of Zn at the ionic liquid / Au(111) interface [online] Dogel, Jana QD1-999 electrochemistry spinodal decomposition STM zinc layer growth thema EDItEUR::P Mathematics and Science::PN Chemistry Zn electrodeposition in the under- (UPD) and overpotential (OPD) ranges by means of in-situ Scanning Tunneling Microscopy (STM) was examined, supported by in-situ cyclic voltammetry and chronoamperometrie. The underpotential deposition of Zn follows a layer-by-layer growth. For the first time the formation of three successive Zn monolayers has been observed in the UPD range. It has been shown, that the UPD of Zn is complicated due to surface alloying. The same growth mechanism extends from the UPD into OPD range until Al bulk deposition sets in. The UPD of Al at 100 mV vs. Zn/Zn(II) is marked by Moiré pattern formation. For the first time in this system the effective tunneling barrier f has been measured by STS. A first insight into the 2D phase formation of electrodeposited Zn at the electrolyte / electrode interface was obtained from STM images at various times and potentials. Before a coherent layer is formed wormlike structures are observed characteristic of spinodal decomposition. This implies a first order phase transition, which has been resolved here for the first time for 2D electrodeposition. 2021-02-11T12:19:55Z 2021-02-11T12:19:55Z 2019-07-30 20:01:58 2004 book 34550 3937300090 https://directory.doabooks.org/handle/20.500.12854/46134 eng image/jpeg https://www.ksp.kit.edu/3937300090 KIT Scientific Publishing 10.5445/KSP/1132004 10.5445/KSP/1132004 68fffc18-8f7b-44fa-ac7e-0b7d7d979bd2 3937300090 open access |
| spellingShingle | QD1-999 electrochemistry spinodal decomposition STM zinc layer growth thema EDItEUR::P Mathematics and Science::PN Chemistry Dogel, Jana Electrochemical SPM study of 2D phase and 3D phase formation of Zn at the ionic liquid / Au(111) interface [online] |
| title | Electrochemical SPM study of 2D phase and 3D phase formation of Zn at the ionic liquid / Au(111) interface [online] |
| title_full | Electrochemical SPM study of 2D phase and 3D phase formation of Zn at the ionic liquid / Au(111) interface [online] |
| title_fullStr | Electrochemical SPM study of 2D phase and 3D phase formation of Zn at the ionic liquid / Au(111) interface [online] |
| title_full_unstemmed | Electrochemical SPM study of 2D phase and 3D phase formation of Zn at the ionic liquid / Au(111) interface [online] |
| title_short | Electrochemical SPM study of 2D phase and 3D phase formation of Zn at the ionic liquid / Au(111) interface [online] |
| title_sort | electrochemical spm study of 2d phase and 3d phase formation of zn at the ionic liquid au 111 interface online |
| topic | QD1-999 electrochemistry spinodal decomposition STM zinc layer growth thema EDItEUR::P Mathematics and Science::PN Chemistry |
| topic_facet | QD1-999 electrochemistry spinodal decomposition STM zinc layer growth thema EDItEUR::P Mathematics and Science::PN Chemistry |
| url | 34550 |
| work_keys_str_mv | AT dogeljana electrochemicalspmstudyof2dphaseand3dphaseformationofznattheionicliquidau111interfaceonline |