PHOTOELECTROCHEMICAL CHARACTERIZATION OF NATURAL COPPER SULPHIDE ELECTRODES IN ALKALINE MEDIA: EFFECT OF XANTHATE ADSORPTION

A photoelectrochemical approach is utilized for studying the processes that take place on copper sulfide mineral surfaces in alkaline solutions, either in absence or presence of potassium ethyl - xanthate. It is found that photoresponses are closely related to the mineral stoichiometric composition...

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Autores principales:	Gómez,H., Cortés,A., Henríquez,R., Riveros,G., Córdova,R., Schrebler,R.
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2003
Materias:	copper sulfides non stoichiometry photoelectrochemistry semiconducting properties flotation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000200008
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spelling	oai:scielo:S0717-970720030002000082004-01-29PHOTOELECTROCHEMICAL CHARACTERIZATION OF NATURAL COPPER SULPHIDE ELECTRODES IN ALKALINE MEDIA: EFFECT OF XANTHATE ADSORPTIONGómez,H.Cortés,A.Henríquez,R.Riveros,G.Córdova,R.Schrebler,R. copper sulfides non stoichiometry photoelectrochemistry semiconducting properties flotation A photoelectrochemical approach is utilized for studying the processes that take place on copper sulfide mineral surfaces in alkaline solutions, either in absence or presence of potassium ethyl - xanthate. It is found that photoresponses are closely related to the mineral stoichiometric composition which also determines its semiconducting or metallic character. It appears that in the potential interval where xanthate anions can be adsorbed, surface composition and reactivity are closely linkedinfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.48 n.2 20032003-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000200008en10.4067/S0717-97072003000200008
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	copper sulfides non stoichiometry photoelectrochemistry semiconducting properties flotation
spellingShingle	copper sulfides non stoichiometry photoelectrochemistry semiconducting properties flotation Gómez,H. Cortés,A. Henríquez,R. Riveros,G. Córdova,R. Schrebler,R. PHOTOELECTROCHEMICAL CHARACTERIZATION OF NATURAL COPPER SULPHIDE ELECTRODES IN ALKALINE MEDIA: EFFECT OF XANTHATE ADSORPTION
description	A photoelectrochemical approach is utilized for studying the processes that take place on copper sulfide mineral surfaces in alkaline solutions, either in absence or presence of potassium ethyl - xanthate. It is found that photoresponses are closely related to the mineral stoichiometric composition which also determines its semiconducting or metallic character. It appears that in the potential interval where xanthate anions can be adsorbed, surface composition and reactivity are closely linked
author	Gómez,H. Cortés,A. Henríquez,R. Riveros,G. Córdova,R. Schrebler,R.
author_facet	Gómez,H. Cortés,A. Henríquez,R. Riveros,G. Córdova,R. Schrebler,R.
author_sort	Gómez,H.
title	PHOTOELECTROCHEMICAL CHARACTERIZATION OF NATURAL COPPER SULPHIDE ELECTRODES IN ALKALINE MEDIA: EFFECT OF XANTHATE ADSORPTION
title_short	PHOTOELECTROCHEMICAL CHARACTERIZATION OF NATURAL COPPER SULPHIDE ELECTRODES IN ALKALINE MEDIA: EFFECT OF XANTHATE ADSORPTION
title_full	PHOTOELECTROCHEMICAL CHARACTERIZATION OF NATURAL COPPER SULPHIDE ELECTRODES IN ALKALINE MEDIA: EFFECT OF XANTHATE ADSORPTION
title_fullStr	PHOTOELECTROCHEMICAL CHARACTERIZATION OF NATURAL COPPER SULPHIDE ELECTRODES IN ALKALINE MEDIA: EFFECT OF XANTHATE ADSORPTION
title_full_unstemmed	PHOTOELECTROCHEMICAL CHARACTERIZATION OF NATURAL COPPER SULPHIDE ELECTRODES IN ALKALINE MEDIA: EFFECT OF XANTHATE ADSORPTION
title_sort	photoelectrochemical characterization of natural copper sulphide electrodes in alkaline media: effect of xanthate adsorption
publisher	Sociedad Chilena de Química
publishDate	2003
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000200008
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PHOTOELECTROCHEMICAL CHARACTERIZATION OF NATURAL COPPER SULPHIDE ELECTRODES IN ALKALINE MEDIA: EFFECT OF XANTHATE ADSORPTION

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