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Abstract:

Waste of electrical and electronic equipment is an interesting secondary resource of base and precious metals. Particularly the use of thiourea-leaching in acidic medium was proposed for noble metals recovery. In this work, a novel and easy-to-use electrochemical sensor was developed, aimed to test thiourea from leaching solutions containing significant thiourea and copper amounts. The sensor was constructed using silver nanoparticles (AgNPs) deposited on screen-printed electrodes. Its performance was studied in a synthetic leaching solution; changes in the overall surface charge of AgNPs resulting in changes in the charge-transfer resistance for the copper ions were evaluated by electrochemical impedance spectroscopy. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Registro:

Documento: Artículo
Título:Preparation of silver nanoparticles-based sensors for the electrochemical detection of thiourea in leaching solutions of waste electrical and electronic equipment
Autor:Tashdjian, A.; SánchezLoredo, M.G.; González, G.A.
Filiación:INQUIMAE, Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Tecnicas, 1428 Buenos Aires, Argentina
Instituto de Metalurgia/Facultad de Ingeniería, Universidad Autónoma de San Luis Potosí, 550, 78210, SLP, Mexico
Palabras clave:Impedance; Nanoparticles; Sensors; Silver; Thiourea
Año:2013
Volumen:25
Número:9
Página de inicio:2124
Página de fin:2129
DOI: http://dx.doi.org/10.1002/elan.201300242
Título revista:Electroanalysis
Título revista abreviado:Electroanalysis
ISSN:10400397
CODEN:ELANE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10400397_v25_n9_p2124_Tashdjian

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Citas:

---------- APA ----------
Tashdjian, A., SánchezLoredo, M.G. & González, G.A. (2013) . Preparation of silver nanoparticles-based sensors for the electrochemical detection of thiourea in leaching solutions of waste electrical and electronic equipment. Electroanalysis, 25(9), 2124-2129.
http://dx.doi.org/10.1002/elan.201300242
---------- CHICAGO ----------
Tashdjian, A., SánchezLoredo, M.G., González, G.A. "Preparation of silver nanoparticles-based sensors for the electrochemical detection of thiourea in leaching solutions of waste electrical and electronic equipment" . Electroanalysis 25, no. 9 (2013) : 2124-2129.
http://dx.doi.org/10.1002/elan.201300242
---------- MLA ----------
Tashdjian, A., SánchezLoredo, M.G., González, G.A. "Preparation of silver nanoparticles-based sensors for the electrochemical detection of thiourea in leaching solutions of waste electrical and electronic equipment" . Electroanalysis, vol. 25, no. 9, 2013, pp. 2124-2129.
http://dx.doi.org/10.1002/elan.201300242
---------- VANCOUVER ----------
Tashdjian, A., SánchezLoredo, M.G., González, G.A. Preparation of silver nanoparticles-based sensors for the electrochemical detection of thiourea in leaching solutions of waste electrical and electronic equipment. Electroanalysis. 2013;25(9):2124-2129.
http://dx.doi.org/10.1002/elan.201300242