at Google ScholarTitle data
Scherzer, Michael ; Girgsdies, Frank ; Stotz, Eugen ; Willinger, Marc-Georg ; Frei, Elias ; Schlögl, Robert ; Pietsch, Ullrich ; Lunkenbein, Thomas:
Electrochemical Surface Oxidation of Copper Studied by in Situ Grazing Incidence X-ray Diffraction.
In: The Journal of Physical Chemistry C.
Vol. 123
(2019)
Issue 21
.
- pp. 13253-13262.
ISSN 1932-7455
DOI: https://doi.org/10.1021/acs.jpcc.9b00282
Abstract in another language
Grazing incidence X-ray diffractometry (GIXRD) can deliver integral information on the structure and chemistry of surface near regions, which can be beneficial for functional materials related to interfacial reactions. Here, we present an in situ laboratory GIXRD setup for electrochemical experiments. The method is capable of directly correlating changes of the crystalline surface structure to the electrochemical conditions. It combines cyclovoltametric (CV) and chronoamperometric (CA) curves of crystalline samples, which can be recorded over the entire pH range, with simultaneous GIXRD measurements. The stepwise oxidation of polycrystalline copper in alkaline medium acts as an example to prove the functionality of the setup. In situ GIXRD measurements during CA experiments reveal a stepwise oxidation mechanism of metallic Cu to Cu2+ involving crystalline cuprite (Cu2O) intermediates. The results highlight the importance of conducting in situ experiments under controlled environments comparable simple oxidation reaction in order to track transient states even for a comparable simple oxidation reaction.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Additional notes: | WOS:000470045500009 |
| Institutions of the University: | Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Operando-Analytics of Electrochemical Energy Storage > Chair Operando-Analytics of Electrochemical Energy Storage - Univ.-Prof. Dr. Thomas Lunkenbein Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Operando-Analytics of Electrochemical Energy Storage |
| Result of work at the UBT: | No |
| DDC Subjects: | 500 Science > 540 Chemistry |
| Date Deposited: | 12 Jun 2025 12:55 |
| Last Modified: | 04 Jul 2025 11:32 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/93710 |