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"In-situ" synchrotron far infrared spectroscopy of surface films on a copper electrode in aqueous solutions.

Journal Article · · J. Electroanal. Chem.

Far infrared spectra of the surface films formed upon anodic oxidation of copper have been obtained in-situ for the first time in aqueous solution environments using a synchrotron source. The spectroelectrochemical behavior of copper was studied in NaOH and in a dilute solution of KSCN in perchlorate. The oxide film at -0.05 V vs. SCE in 0.1 M NaOH solution has been identified as Cu{sub 2}O. In the passive region at 0.3 V, CuO and Cu(OH){sub 2} appear to be present on the surface. Vibrational bands observed in 0.025 M KSCN+perchlorate solution are attributed to a multilayer film of copper(I) thiocyanate.

Research Organization:
Argonne National Laboratory (ANL)
DOE Contract Number:
AC02-06CH11357
OSTI ID:
942363
Report Number(s):
ANL/CMT/JA-30706
Journal Information:
J. Electroanal. Chem., Journal Name: J. Electroanal. Chem. Journal Issue: 1-2 ; Jun. 1, 1998 Vol. 449; ISSN 0368-1874; ISSN JEACAX
Country of Publication:
United States
Language:
ENGLISH