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Communication Dans Un Congrès Année : 2023

New insights into the urea electrochemical oxidation on nickel anode

Nouvelles connaissances sur l'oxydation électrochimique de l'urée sur anode de nickel

Laure Latapie
Karine Loubière
Theodore Tzedakis

Résumé

Human urine is responsible for almost 75% of the nitrogen found in wastewater. Various effective methods for urea splitting are nowadays developed (Urbańczyk et al, 2016), and urea electro-oxidation (UEO) is one promising option (Boggs et al, 2009), easy to implement and operating at room temperature. Nickel and its alloys have proven to be effective and low-cost electrocatalysts for UEO, making large-scale pollution control feasible (Zhu et al, 2020). In addition, the cathodic hydrogen production during the electrochemical process offers an indirect energy source, allowing the nitrogen pollution valorization. The present work aims to get a better understanding of the UEO processes occurring at the electrodeelectrolyte interface that consist in an indirect oxidation in alkaline medium by the Ni(III)/Ni(II) electromediation.
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Dates et versions

hal-04302444 , version 1 (23-11-2023)

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  • HAL Id : hal-04302444 , version 1

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Guillaume Hopsort, Laure Latapie, Karine Groenen Serrano, Karine Loubière, Theodore Tzedakis. New insights into the urea electrochemical oxidation on nickel anode. 74th Annual Meeting of the International Society of Electrochemistry (ISE Meeting 2023), International Society of Electrochemistry, Sep 2023, Lyon, France. ⟨hal-04302444⟩
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