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Characterization of the catalytic films formed on stainless steel anodes employed for the electrochemical treatment of cuprocyanide wastewaters.
J Hazard Mater. 2005 Mar 17; 119(1-3):145-52.JH

Abstract

Surface composition changes at stainless steel anodes in an electrochemical reactor applied for the electrochemical treatment of cuprocyanide-containing wastewaters operating under different hydrodynamic conditions were investigated. Under highly alkaline conditions in situ generation of a surface film on the anode with catalytic properties towards cyanide electrolysis was observed. X-ray photoelectron spectroscopy (XPS) results demonstrated that only copper oxi-hydroxide compounds constitute the surface film developed on the stainless steel anodes, as no traces of N- and C-containing compounds were observed. The collected XPS spectra revealed relevant details concerning the oxidation states of copper in the film, and the products Cu2O, CuO and Cu(OH)2 were identified on the surface of the anodes. However, the quantitative proportions of the individual products differ and depend on the type of mixing employed during reactor operation.

Authors+Show Affiliations

Environmental Sciences Department, University of Venice, 30123 Venice, Italy. lidia@unive.itNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15752859

Citation

Szpyrkowicz, Lidia, et al. "Characterization of the Catalytic Films Formed On Stainless Steel Anodes Employed for the Electrochemical Treatment of Cuprocyanide Wastewaters." Journal of Hazardous Materials, vol. 119, no. 1-3, 2005, pp. 145-52.
Szpyrkowicz L, Ricci F, Montemor MF, et al. Characterization of the catalytic films formed on stainless steel anodes employed for the electrochemical treatment of cuprocyanide wastewaters. J Hazard Mater. 2005;119(1-3):145-52.
Szpyrkowicz, L., Ricci, F., Montemor, M. F., & Souto, R. M. (2005). Characterization of the catalytic films formed on stainless steel anodes employed for the electrochemical treatment of cuprocyanide wastewaters. Journal of Hazardous Materials, 119(1-3), 145-52.
Szpyrkowicz L, et al. Characterization of the Catalytic Films Formed On Stainless Steel Anodes Employed for the Electrochemical Treatment of Cuprocyanide Wastewaters. J Hazard Mater. 2005 Mar 17;119(1-3):145-52. PubMed PMID: 15752859.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Characterization of the catalytic films formed on stainless steel anodes employed for the electrochemical treatment of cuprocyanide wastewaters. AU - Szpyrkowicz,Lidia, AU - Ricci,Francesco, AU - Montemor,M Fátima, AU - Souto,Ricardo M, PY - 2004/03/05/received PY - 2004/11/18/revised PY - 2004/11/24/accepted PY - 2005/3/9/pubmed PY - 2005/7/6/medline PY - 2005/3/9/entrez SP - 145 EP - 52 JF - Journal of hazardous materials JO - J Hazard Mater VL - 119 IS - 1-3 N2 - Surface composition changes at stainless steel anodes in an electrochemical reactor applied for the electrochemical treatment of cuprocyanide-containing wastewaters operating under different hydrodynamic conditions were investigated. Under highly alkaline conditions in situ generation of a surface film on the anode with catalytic properties towards cyanide electrolysis was observed. X-ray photoelectron spectroscopy (XPS) results demonstrated that only copper oxi-hydroxide compounds constitute the surface film developed on the stainless steel anodes, as no traces of N- and C-containing compounds were observed. The collected XPS spectra revealed relevant details concerning the oxidation states of copper in the film, and the products Cu2O, CuO and Cu(OH)2 were identified on the surface of the anodes. However, the quantitative proportions of the individual products differ and depend on the type of mixing employed during reactor operation. SN - 0304-3894 UR - https://www.unboundmedicine.com/medline/citation/15752859/Characterization_of_the_catalytic_films_formed_on_stainless_steel_anodes_employed_for_the_electrochemical_treatment_of_cuprocyanide_wastewaters_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(04)00587-4 DB - PRIME DP - Unbound Medicine ER -