Electrocatalytic Reduction of Peroxodisulfate in 0.5 M NaOH at Copper Electrodes. A Combined Quartz Microbalance and Rotating Ring/Disc Electrode Investigation | Sciact - CRIS-system of Boreskov Institute of Catalysis

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

Journal

The Journal of Physical Chemistry B
ISSN: 1520-6106 , E-ISSN: 1520-5207

Output data

Year: 1997, Volume: 101, Number: 14, Pages: 2411-2414 Pages count : 4 DOI: 10.1021/jp9627279

Tags

ALKALINE-SOLUTIONS; SURFACE; OXIDATION; CU(111); FILM

Authors

Hartinger S. ^1,2 , Rosenmund J. ¹ , Savinova E. ^1,3 , Wasle S. ¹ , Doblhofer K. ¹

Affiliations

1	Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin-Dahlem, Germany
2	Instituto de Quimica, Universidade Estadual de Campinas, CP 6154, 13081 970 Campinas, SP, Brazil
3	Boreskov Institute of Catalysis, Lavrentjeva 5, 630090 Novosibirsk, Russia

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.

Hartinger S. , Rosenmund J. , Savinova E. , Wasle S. , Doblhofer K.
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. 1997. V.101. N14. P.2411-2414. DOI: 10.1021/jp9627279 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Sep 6, 1996
Accepted:	Dec 4, 1996
Published print:	Apr 1, 1997

Web of science:	WOS:A1997WR42600004
Scopus:	2-s2.0-0345434590
Elibrary:	44924021
Chemical Abstracts:	1997:303241
Chemical Abstracts (print):	126:269690
OpenAlex:	W2950967798

DB	Citing
Web of science	4
Scopus	4
Elibrary	3
OpenAlex	5