Fabrication of polyoxometalate-modified palladium–nickel/reduced graphene oxide alloy catalysts for enhanced oxygen reduction reaction activity
Loading...
Date
2021
Journal Title
Journal ISSN
Volume Title
Publisher
Royal Society of Chemistry
Abstract
Designing advanced nanocatalysts for effectively catalyzing the oxygen reduction reaction (ORR) is of great
importance for practical applications of direct methanol fuel cells (DMFCs). In this work, the reduced
graphene oxide (rGO)-supported palladium–nickel (Pd–Ni/rGO) alloy modified by the novel
polyoxometalate (POM) with Keggin structure (Pd–Ni/rGO-POM) is efficiently fabricated via an
impregnation technique. The physical characterizations such as X-ray diffraction (XRD), Fourier transform
infrared spectroscopy (FT-IR), Raman spectroscopy, inductively coupled plasma optical emission
spectroscopy (ICP-OES), field emission scanning electron microscopy coupled with energy dispersive Xray spectroscopy (FESEM-EDX), and transmission electron microscopy (TEM) are utilized to confirm the
structure, morphology, and chemical composition of the fabricated samples. The XRD results verify the
formation of the POM-modified Pd8Ni2/rGO alloy electro-catalyst with the face-centered-cubic (fcc)
structure and average crystallite size of 5.54 nm.
Description
Keywords
Chemistry, Nanocatalysts, Oxygen reduction, Graphene oxide
Citation
Sanij, F. D. et al. (2021). Fabrication of polyoxometalate-modified palladium–nickel/reduced graphene oxide alloy catalysts for enhanced oxygen reduction reaction activity. RSC Advances, 11 (62) ,39118-39129