Issue 34, 2013
From the journal:

Journal of Materials Chemistry A

Electrocatalytic oxidation of ethanol at Pd/Ag nanodendrites prepared via low support electrodeposition and galvanic replacement†

Nahid Abbasi,a   Paria Shahbazia  and  Abolfazl Kiani*a  

* Corresponding authors

a Department of Chemistry, University of Isfahan, Isfahan, Iran
E-mail: a.kiani@chem.ui.ac.ir
Fax: +98 311 6689732
Tel: +98 311 7932742

Abstract

The electrodeposition of silver nanodendritic structures in the absence of supporting electrolyte is reported. The as-fabricated dendritic Ag causes an enhancement in Raman scattering of rhodamine B. The galvanic replacement of as-deposited silver with Pd resulted in the formation of dendritic Pd/Ag with a different morphology from the initial Ag dendrites. Scanning electron microscopy (SEM), energy dispersive X-ray spectrometry (EDX), X-ray diffraction (XRD), and inductively coupled plasma mass spectrometer (ICP-MAS) revealed that the resulting product was composed of partially depleted Ag dendrites covered with Pd seeds. When employed as an electrocatalyst for ethanol oxidation in alkaline media, the Pd/Ag dendrite electrode exhibited remarkable activity with an onset potential of −0.60 V (vs. NHE) and jb/jf (backward current density/forward current density) of 0.49.

Graphical abstract: Electrocatalytic oxidation of ethanol at Pd/Ag nanodendrites prepared via low support electrodeposition and galvanic replacement

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Article information

DOI
https://doi.org/10.1039/C3TA10706J
Article type
Paper
Submitted
16 Feb 2013
Accepted
29 May 2013
First published
29 May 2013

J. Mater. Chem. A, 2013,1, 9966-9972

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Electrocatalytic oxidation of ethanol at Pd/Ag nanodendrites prepared via low support electrodeposition and galvanic replacement

N. Abbasi, P. Shahbazi and A. Kiani, J. Mater. Chem. A, 2013, 1, 9966 DOI: 10.1039/C3TA10706J

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