Jump to main content
Jump to site search

Issue 7, 2016
Previous Article Next Article

Mechanistic insights into the activation process in electrocatalytic ethanol oxidation by phosphomolybdic acid-stabilised palladium(0) nanoparticles (PdNPs@PMo12)

Author affiliations

Abstract

A Keggin type polyoxometalate (POM), phosphomolybdic acid (PMo12), has been employed to encapsulate and stabilise pseudo-spherical Pd(0) nanoparticles (PdNPs). The resulting nanohybrid phosphomolybdic acid-stabilised PdNPs (PdNPs@PMo12) were characterised by transmission electron microscopy (TEM), high-angle annular dark field-scanning transmission electron microscopy (HAADF-STEM), energy-dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR) and powder X-ray diffraction (XRD). The PdNPs@PMo12 were used as an electrocatalyst for ethanol oxidation in alkaline media and the best electrocatalytic activity was assessed by applying an activation process. The electrochemical data (chronoamperometry, cyclic voltammetry and linear sweep voltammetry) allowed us to attribute the superior performance of the nanohybrid to the generation of Pd–OHads sites at the surface of the PdNPs@PMo12, reinforced by the formation of a new molybdenum species on the surface of the electrocatalyst.

Graphical abstract: Mechanistic insights into the activation process in electrocatalytic ethanol oxidation by phosphomolybdic acid-stabilised palladium(0) nanoparticles (PdNPs@PMo12)

Back to tab navigation

Publication details

The article was received on 29 Oct 2015, accepted on 25 Dec 2015 and first published on 06 Jan 2016


Article type: Paper
DOI: 10.1039/C5RA22698H
Citation: RSC Adv., 2016,6, 5359-5366
  •   Request permissions

    Mechanistic insights into the activation process in electrocatalytic ethanol oxidation by phosphomolybdic acid-stabilised palladium(0) nanoparticles (PdNPs@PMo12)

    S. Khadempir, A. Ahmadpour, M. T. Hamed Mosavian, N. Ashraf, F. F. Bamoharram, R. Fernández-Pacheco, J. M. de la Fuente and S. G. Mitchell, RSC Adv., 2016, 6, 5359
    DOI: 10.1039/C5RA22698H

Search articles by author

Spotlight

Advertisements