Silver nanoparticle's size and morphology relationship with their electrocatalysis and detection properties

Primer Autor
Ahumada, Manuel
Co-autores
Lorca-Ponce, Javier
Urzua, Esteban
Avila-Salas, Fabian
Ramirez, Andres M.
Título
Silver nanoparticle's size and morphology relationship with their electrocatalysis and detection properties
Editorial
ELSEVIER
Revista
APPLIED SURFACE SCIENCE
Lenguaje
en
Resumen
The development of electrochemical sensors based on silver nanoparticles (AgNPs) is a prominent field for detecting different analytes, nonetheless, several parameters should be considered, particularly regarding the nanostructure. This work investigates the influence of the nanoparticle's morphology over the methylene blue (MB) degradation reaction evaluated by electrochemical techniques. To this end, AgNPs were synthesized by photochemical means, and posteriorly, their morphology was modified through a light irradiation process at specific wavelengths to avoid the addition of any further reagent. The voltammetric results showed that AgNPs with a lower available surface area have a higher current response (catalytic activity) towards MB degradation. Further, it was demonstrated that the proper selection of morphology allowed a lower detection limit of MB than those reported in the literature and could distinguish between molecular processes occurring at the interface level properly. While additional work is required to finetune a sensor based on AgNP, our contribution sheds new light on the electrochemical relevance of morphology and surface area of AgNPs.
Fecha Publicación
2023
Tipo de Recurso
artículo original
doi
10.1016/j.apsusc.2023.156584
Formato Recurso
PDF
Palabras Claves
Silver nanoparticles ? morphology
Nanoelectrochemistry
Methylene blue detection
Electrocatalytic activity dependency with
nanoparticle ?s available surface
Ubicación del archivo
http://dx.doi.org/10.1016/j.apsusc.2023.156584
Categoría OCDE
Química
Ciencia de Materiales
Física
Materias
morfología de Nanopartículas de plata
Nanoelectroquímica
Detección de azul de metileno
Dependencia de la actividad electrocatalítica con
Superficie disponible de las nanopartículas.
Identificador del recurso (Mandatado-único)
artículo original
Versión del recurso (Recomendado-único)
versión publicada
Derechos de acceso
metadata
Access Rights
metadata
Id de Web of Science
WOS:000927979700001
ISSN
0169-4332
Tipo de ruta
hibrida
Categoría WOS
Química
Ciencia de Materiales
Física
Referencia del Financiador (Mandatado si es aplicable-repetible)
ANID-FONDECYT 11180616
ANID-FONDECYT 1230426
ANID FONDECYT 11180616
ANID FONDECYT 1230426
Colecciones
Colección Publicaciones Científicas
Colección ANID
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