Synthesis of nitrogen-doped reduced graphene oxide and its decoration with high efficiency palladium nanoparticles for direct ethanol fuel cell

Karim Kakaei and Mohammad Rahnavardi

Renewable Energy, 2021, vol. 163, issue C, 1277-1286

Abstract: For the first time, reduced graphene oxide (RGO) and nitrogen doped RGO (N-RGO) are prepared by the electrochemical procedure and then decorates with palladium nanoparticles via a solvothermal method to obtain Pd/RGO and Pd/NRGO. The as-synthesized electrocatalysts are characterized by transition electron microscopy (TEM), x-ray photoelectron (XPS), energy dispersive spectroscopy (EDS) and Fourier-transform infrared spectroscopy (FTIR) techniques. The bare RGO and NRGO electrodes are very active for the oxygen reduction reaction (ORR) and ethanol tolerance, providing the best performance in terms of tafel slope and onset potential. But, the resulting Pd/NRGO electrocatalyst shows outstanding electrocatalytic performance toward both ORR and ethanol oxidation reaction (EOR), including higher peak current density and low tafel slope than that of Pd/RGO, which can be related to high electrochemical active surface area of Pd/NRGO (53 m2 g−1) than that of Pd/RGO (41 m2 g−1). Finally, the fabricated anionic alkaline Membrane-electrode assemblies (MEAs) by using RGO, NRGO, Pd/RGO and Pd/NRGO are studied in single air-breathing direct ethanol fuel cell, as anode and cathode, with solutions of 4 M ethanol and 2 M KOH at room temperature.

Keywords: Electrochemical synthesis; N-doped graphene; Ethanol oxidation; Oxygen reduction; Direct ethanol fuel cell (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148120314634
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:163:y:2021:i:c:p:1277-1286

DOI: 10.1016/j.renene.2020.09.043

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().