English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Electrochemical Surface Oxidation of Copper Studied by in Situ Grazing Incidence X-ray Diffraction

MPS-Authors
/persons/resource/persons80761

Scherzer,  Michael
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Research Department Schlögl, Max Planck Institute for Chemical Energy Conversion, Max Planck Society;

/persons/resource/persons21557

Girgsdies,  Frank
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22144

Stotz,  Eugen
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22243

Willinger,  Marc Georg
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Scientific Center for Optical and Electron Microscopy, ETH Zürich, 8093 Zürich, Switzerland;

/persons/resource/persons104933

Frei,  Elias
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22071

Schlögl,  Robert
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Research Department Schlögl, Max Planck Institute for Chemical Energy Conversion, Max Planck Society;

/persons/resource/persons41515

Lunkenbein,  Thomas
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)

acs.jpcc.9b00282.pdf
(Publisher version), 4MB

Supplementary Material (public)
There is no public supplementary material available
Citation

Scherzer, M., Girgsdies, F., Stotz, E., Willinger, M. G., Frei, E., Schlögl, R., et al. (2019). Electrochemical Surface Oxidation of Copper Studied by in Situ Grazing Incidence X-ray Diffraction. The Journal of Physical Chemistry C, 123(21), 13253-13262. doi:10.1021/acs.jpcc.9b00282.


Cite as: http://hdl.handle.net/21.11116/0000-0003-B3F3-0
Abstract
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 in order to track transient states even for a comparable simple oxidation reaction.