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High-Performance 3D Nanostructured Silver Electrode for Micro-Supercapacitor Application

dc.contributor.authorGonzález García, Ana Silvia 
dc.contributor.authorGarcía Fernández, Javier 
dc.contributor.authorVega Martínez, Víctor 
dc.contributor.authorCaballero Flores, Rafael 
dc.contributor.authorPrida Pidal, Victor Manuel de la 
dc.contributor.editorGanesh, Krishna
dc.contributor.editorZhang, Deqing
dc.identifier.citationACS Omega,(43) (2023); 10.1021/acsomega.3c02235
dc.description.abstractIn the current energy crisis scenario, the development of renewable energy forms such as energy storage systems among the supercapacitors is an urgent need as a tool for environmental protection against increasing pollution. In this work, we have designed a novel 3D nanostructured silver electrode through an antireplica/replica template-assisted procedure. The chemical surface and electrochemical properties of this novel 3D electrode have been studied in a 5 M KOH electrolyte. Microstructural characterization and compositional analysis were studied by SEM, energy-dispersive X-ray spectroscopy, XRD technique, and Kripton adsorption at −198 °C, together with cyclic voltammetry and galvanostatic charge–discharge cycling measurements, Coulombic efficiency, cycle stability, and their leakage current drops, in addition to the self-discharge and electrochromoactive behavior, were performed to fully characterize the 3D nanostructured electrode. Large areal capacitance value of 0.5 F/cm2 and Coulombic efficiency of 97.5% are obtained at a current density of 6.4 mA/cm2 for a voltage window of 1.2 V (between −0.5 and 0.8 V). The 3D nanostructured silver electrode exhibits excellent capacitance retention (95%) during more than 2600 cycles, indicating a good cyclic stability. Additionally, the electrode delivers a high energy density of around 385.87 μWh/cm2 and a power density value of 3.82 μW/cm2 and also displays an electrochromoactive behavior. These experimental results strongly support that this versatile combined fabrication procedure is a suitable strategy for improving the electrochemical performances of 3D nanostructured silver electrodes for applications as micro-supercapacitors or in electrochemical
dc.description.sponsorshipSpanish MCINN research grant no. PID2019−108075RBC32/AEI/10.13039/501100011033. Regional government of Principado de Asturias under FICYT project ref.: SV-PA-21-AYUD/2021/
dc.publisherAmerican Chemical Society
dc.relation.ispartofACS Omega Vol. 8, núm. 43spa
dc.rights© 2023 The Authors
dc.rightsCC Reconocimiento – No Comercial – Sin Obra Derivada 4.0 Internacional
dc.subjectElectrical propertiesspa
dc.titleHigh-Performance 3D Nanostructured Silver Electrode for Micro-Supercapacitor Applicationspa
dc.typejournal articlespa
dc.relation.projectIDSV-PA-21- AYUD/2021/51399spa
dc.rights.accessRightsopen accessspa

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