Tailor-designed nanoparticle-based PdNiSn catalyst as a potential anode for glycerol fuel cells

Abstract In order to effectively use glycerol as a fuel in direct glycerol fuel cells, a catalyst that can break the C–C bond and enhance the electro-oxidation of glycerol to CO2 is necessary. In this particular investigation, a palladium-nickel-tin nanocomposite electrodeposited on a glassy carbon...

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Main Author: Ghada H. El-Nowihy
Format: Article
Language:English
Published: Nature Portfolio 2023-08-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-40374-4
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author Ghada H. El-Nowihy
author_facet Ghada H. El-Nowihy
author_sort Ghada H. El-Nowihy
collection DOAJ
description Abstract In order to effectively use glycerol as a fuel in direct glycerol fuel cells, a catalyst that can break the C–C bond and enhance the electro-oxidation of glycerol to CO2 is necessary. In this particular investigation, a palladium-nickel-tin nanocomposite electrodeposited on a glassy carbon electrode (PdNiSn/GC) exhibited excellent activity towards the electro-oxidation of glycerol, thanks to the synergistic effect of the catalyst composition. The PdNiSn/GC surface generated a peak current (I p) that was 2.5 times higher than that obtained at a Pd/GC electrode, with a cathodic shift in the onset potential (E onset) of approximately 300 mV. Additionally, the current obtained at the PdNiSn/GC surface remained stable during continuous electrolysis. Capacitance measurements were used to interpret the results of the electrocatalytic activity, and high-performance liquid chromatography indicated that the products of the glycerol electro-oxidation reaction were oxalic acid and formic acid, which were subsequently oxidized to CO2, as revealed by the charge calculations. The results depict that the synergy between Pd, β-Ni(OH)2, and SnO2 is crucial for boosting GEOR through enhancing the C–C bond cleavage and completely oxidize the reaction intermediates to CO2.
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spelling doaj.art-2f75494e529f476aa6007994a41265a82023-11-26T13:21:48ZengNature PortfolioScientific Reports2045-23222023-08-011311910.1038/s41598-023-40374-4Tailor-designed nanoparticle-based PdNiSn catalyst as a potential anode for glycerol fuel cellsGhada H. El-Nowihy0Chemical Engineering Department, Faculty of Engineering, The British University in EgyptAbstract In order to effectively use glycerol as a fuel in direct glycerol fuel cells, a catalyst that can break the C–C bond and enhance the electro-oxidation of glycerol to CO2 is necessary. In this particular investigation, a palladium-nickel-tin nanocomposite electrodeposited on a glassy carbon electrode (PdNiSn/GC) exhibited excellent activity towards the electro-oxidation of glycerol, thanks to the synergistic effect of the catalyst composition. The PdNiSn/GC surface generated a peak current (I p) that was 2.5 times higher than that obtained at a Pd/GC electrode, with a cathodic shift in the onset potential (E onset) of approximately 300 mV. Additionally, the current obtained at the PdNiSn/GC surface remained stable during continuous electrolysis. Capacitance measurements were used to interpret the results of the electrocatalytic activity, and high-performance liquid chromatography indicated that the products of the glycerol electro-oxidation reaction were oxalic acid and formic acid, which were subsequently oxidized to CO2, as revealed by the charge calculations. The results depict that the synergy between Pd, β-Ni(OH)2, and SnO2 is crucial for boosting GEOR through enhancing the C–C bond cleavage and completely oxidize the reaction intermediates to CO2.https://doi.org/10.1038/s41598-023-40374-4
spellingShingle Ghada H. El-Nowihy
Tailor-designed nanoparticle-based PdNiSn catalyst as a potential anode for glycerol fuel cells
Scientific Reports
title Tailor-designed nanoparticle-based PdNiSn catalyst as a potential anode for glycerol fuel cells
title_full Tailor-designed nanoparticle-based PdNiSn catalyst as a potential anode for glycerol fuel cells
title_fullStr Tailor-designed nanoparticle-based PdNiSn catalyst as a potential anode for glycerol fuel cells
title_full_unstemmed Tailor-designed nanoparticle-based PdNiSn catalyst as a potential anode for glycerol fuel cells
title_short Tailor-designed nanoparticle-based PdNiSn catalyst as a potential anode for glycerol fuel cells
title_sort tailor designed nanoparticle based pdnisn catalyst as a potential anode for glycerol fuel cells
url https://doi.org/10.1038/s41598-023-40374-4
work_keys_str_mv AT ghadahelnowihy tailordesignednanoparticlebasedpdnisncatalystasapotentialanodeforglycerolfuelcells