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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/17073

Title: Electroless Deposition of Silver Dendrite Nanostructure onto Glassy Carbon Electrode and Its Electrocatalytic Activity for Ascorbic Acid Oxidation
Authors: Hasan, Md. Mahmudul
Rakib, Riad Hussain
Hasnat, Mohammad Abul
Nagao, Yuki
Keywords: electroless deposition
ascorbic acid
electron transfer kinetics
dendrite structure
Issue Date: 2020-02-24
Publisher: American Chemical Society
Magazine name: ACS Applied Energy Materials
Volume: 3
Number: 3
Start page: 2907
End page: 2915
DOI: http://dx.doi.org/10.1021/acsaem.9b02513
Abstract: Well-defined silver dendrite nanostructures with primary and secondary branches on a glassy carbon electrode (GCE) surface are first demonstrated using a simple wet chemical electroless deposition method without any aid of a surfactant. The properties of dendrite structures were characterized using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). Results of XPS and XRD indicated that most of the silver particles were not oxidized. The obtained silver dendrite GCE (Ag/GCE) showed high electrochemical activity towards catalytic oxidation for ascorbic acid (AA). The oxidation process followed a stepwise mechanism at slower scan rates (υ < 0.15 V s^<-1>) and a concerted mechanism at faster scan rates (υ > 0.15 V s^<-1>). The silver nanostructures are highly stable on the GCE surface and could be employed as an anode for an AA fuel cell.
Rights: Md. Mahmudul Hasan, Riad Hussain Rakib, Mohammad Abul Hasnat, Yuki Nagao, ACS Applied Energy Materials, 2020, 3(3), pp.2907-2915. This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Energy Materials, copyright (c) American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/http://dx.doi.org/10.1021/acsaem.9b02513.
URI: http://hdl.handle.net/10119/17073
Material Type: author
Appears in Collections:c10-1. 雑誌掲載論文 (Journal Articles)

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