Electrochemical Behaviour of Silver Nanoparticle-MWCNTs Hybrid Nanostructures Synthesized via a Simple Method

Sneha Mohan; Fredrick Okumu; Oluwatobi Oluwafemi; Mangaka Matoetoe; Omotayo Arotiba

doi:10.1016/S1452-3981(23)15880-9

Electrochemical Behaviour of Silver Nanoparticle-MWCNTs Hybrid Nanostructures Synthesized via a Simple Method

Sneha Mohan, Fredrick Okumu, Oluwatobi Oluwafemi, Mangaka Matoetoe, Omotayo Arotiba

Chemical Sciences

Cape Peninsula University of Technology

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

As the synthesis via completely green method is emerging, determination of the electrochemistry properties of the as-synthesized nanomaterials has become an important aspect of research. We herein investigate for the first time the inherent electrochemistry of silver nanoparticle modified multiwall carbon nanotubes (Ag NPs-MWCNTs) hybrid nanocomposites that was synthesized via a simple method using cyclic voltammetry (CV) as a diagnostic technique. The result obtained was compared with multiwall carbon nanotubes (MWCNTs), acid functionalized MWCNTs (MWCNT-COOH) and as-synthesized silver nanoparticle (Ag NPs) modified on the glassy carbon electrode (GCE). A detailed analysis of the cyclic voltammograms gave fundamental electrochemical parameters including the transfer coefficient (α) and the diffusion coefficient (D). The transfer coefficient for the Ag NPs- MWCNTs/GCE was found to be greater than that of MWCNTs/GCE while the diffusion coefficient of Ag-NPs-MWCNTs/GCE was calculated to be 5.11 ×10^-5 cm² s^-1 which is higher than both pristine MWCNTs/GCE and MWCNT-COOH/GCE.

Original language	English
Pages (from-to)	745-753
Number of pages	9
Journal	International Journal of Electrochemical Science
Volume	11
Issue number	1
DOIs	https://doi.org/10.1016/S1452-3981(23)15880-9
Publication status	Published - Jan 2016

Keywords

Ag-MWCNT
electrochemical behavior
green synthesis

ASJC Scopus subject areas

Electrochemistry

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10.1016/S1452-3981(23)15880-9

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title = "Electrochemical Behaviour of Silver Nanoparticle-MWCNTs Hybrid Nanostructures Synthesized via a Simple Method",

abstract = "As the synthesis via completely green method is emerging, determination of the electrochemistry properties of the as-synthesized nanomaterials has become an important aspect of research. We herein investigate for the first time the inherent electrochemistry of silver nanoparticle modified multiwall carbon nanotubes (Ag NPs-MWCNTs) hybrid nanocomposites that was synthesized via a simple method using cyclic voltammetry (CV) as a diagnostic technique. The result obtained was compared with multiwall carbon nanotubes (MWCNTs), acid functionalized MWCNTs (MWCNT-COOH) and as-synthesized silver nanoparticle (Ag NPs) modified on the glassy carbon electrode (GCE). A detailed analysis of the cyclic voltammograms gave fundamental electrochemical parameters including the transfer coefficient (α) and the diffusion coefficient (D). The transfer coefficient for the Ag NPs- MWCNTs/GCE was found to be greater than that of MWCNTs/GCE while the diffusion coefficient of Ag-NPs-MWCNTs/GCE was calculated to be 5.11 ×10-5 cm2 s-1 which is higher than both pristine MWCNTs/GCE and MWCNT-COOH/GCE.",

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author = "Sneha Mohan and Fredrick Okumu and Oluwatobi Oluwafemi and Mangaka Matoetoe and Omotayo Arotiba",

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AU - Okumu, Fredrick

AU - Oluwafemi, Oluwatobi

AU - Matoetoe, Mangaka

AU - Arotiba, Omotayo

PY - 2016/1

Y1 - 2016/1

N2 - As the synthesis via completely green method is emerging, determination of the electrochemistry properties of the as-synthesized nanomaterials has become an important aspect of research. We herein investigate for the first time the inherent electrochemistry of silver nanoparticle modified multiwall carbon nanotubes (Ag NPs-MWCNTs) hybrid nanocomposites that was synthesized via a simple method using cyclic voltammetry (CV) as a diagnostic technique. The result obtained was compared with multiwall carbon nanotubes (MWCNTs), acid functionalized MWCNTs (MWCNT-COOH) and as-synthesized silver nanoparticle (Ag NPs) modified on the glassy carbon electrode (GCE). A detailed analysis of the cyclic voltammograms gave fundamental electrochemical parameters including the transfer coefficient (α) and the diffusion coefficient (D). The transfer coefficient for the Ag NPs- MWCNTs/GCE was found to be greater than that of MWCNTs/GCE while the diffusion coefficient of Ag-NPs-MWCNTs/GCE was calculated to be 5.11 ×10-5 cm2 s-1 which is higher than both pristine MWCNTs/GCE and MWCNT-COOH/GCE.

AB - As the synthesis via completely green method is emerging, determination of the electrochemistry properties of the as-synthesized nanomaterials has become an important aspect of research. We herein investigate for the first time the inherent electrochemistry of silver nanoparticle modified multiwall carbon nanotubes (Ag NPs-MWCNTs) hybrid nanocomposites that was synthesized via a simple method using cyclic voltammetry (CV) as a diagnostic technique. The result obtained was compared with multiwall carbon nanotubes (MWCNTs), acid functionalized MWCNTs (MWCNT-COOH) and as-synthesized silver nanoparticle (Ag NPs) modified on the glassy carbon electrode (GCE). A detailed analysis of the cyclic voltammograms gave fundamental electrochemical parameters including the transfer coefficient (α) and the diffusion coefficient (D). The transfer coefficient for the Ag NPs- MWCNTs/GCE was found to be greater than that of MWCNTs/GCE while the diffusion coefficient of Ag-NPs-MWCNTs/GCE was calculated to be 5.11 ×10-5 cm2 s-1 which is higher than both pristine MWCNTs/GCE and MWCNT-COOH/GCE.

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Electrochemical Behaviour of Silver Nanoparticle-MWCNTs Hybrid Nanostructures Synthesized via a Simple Method

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