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  Electrocatalytic Reduction of Peroxodisulfate in 0.5 M NaOH at Copper Electrodes. A Combined Quartz Microbalance and Rotating Ring/Disc Electrode Investigation

Härtinger, S., Rosenmund, J., Savinova, E. R., Wasle, S., & Doblhofer, K. (1997). Electrocatalytic Reduction of Peroxodisulfate in 0.5 M NaOH at Copper Electrodes. A Combined Quartz Microbalance and Rotating Ring/Disc Electrode Investigation. The Journal of Physical Chemistry B, 101(14), 2411-2414. doi:10.1021/jp9627279.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0008-A19E-0 Version Permalink: https://hdl.handle.net/21.11116/0000-0008-A19F-F
Genre: Journal Article

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 Creators:
Härtinger, Stefan1, Author           
Rosenmund, Jürgen2, Author           
Savinova, Elena R.1, Author           
Wasle, Sabine1, Author           
Doblhofer, Karl1, Author           
Affiliations:
1Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              
2Fritz Haber Institute, Max Planck Society, ou_24021              

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 Abstract: From an electrochemical investigation by means of an electrochemical quartz microbalance, a rotating disc electrode, and a ring/disc electrode, two mechanisms for the reduction of S2O82- became apparent. Besides the well-known outer-sphere cathodic reduction, a catalytic mechanism of S2O82- reduction operates in a potential range between the surface oxide region (≈-0.5 V/SCE) and -1.0 V/SCE. It involves the chemical
oxidation of the copper surface to a soluble Cu(I) species. The catalytic mechanism is concluded to result from the specific interaction between S2O82- and the Cu surface modified by the presence of subsurface
oxygen.

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Language(s): eng - English
 Dates: 1996-12-041996-09-061997-04-031997-04-01
 Publication Status: Issued
 Pages: 4
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/jp9627279
 Degree: -

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Title: The Journal of Physical Chemistry B
  Abbreviation : J. Phys. Chem. B
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Chemical Society
Pages: 4 Volume / Issue: 101 (14) Sequence Number: - Start / End Page: 2411 - 2414 Identifier: ISSN: 1520-6106
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000293370_1