Precious-Group-Metal-Free Energy-Efficient Urea Electrolysis: Membrane Electrode Assembly Cell Using Ni3N Nanoparticles as Catalyst

Vineesh Thazhe Veettil; Anagha Usha Vijayakumar; Aviv Ashdot; David Zitoun

doi:10.1021/acsaem.1c03689

Precious-Group-Metal-Free Energy-Efficient Urea Electrolysis: Membrane Electrode Assembly Cell Using Ni₃N Nanoparticles as Catalyst

Vineesh Thazhe Veettil, Anagha Usha Vijayakumar, Aviv Ashdot, David Zitoun

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

The sluggish kinetics of the anodic oxygen evolution reaction (OER) limit the overall efficiency of green hydrogen production. The proposed strategy to overcome this is to replace OER with other kinetically favorable anodic reactions like urea oxidation reaction (UOR). Herein, we develop an organometallic synthesis of nickel nitride nanoparticles supported on carbon (Ni₃N-C) as the catalyst for both UOR and hydrogen evolution reaction (HER). A precious group metal-free electrolyzer based on Ni₃N-C catalyst (as both anode and cathode) is implemented for the first time, and the urea electrolyzer cell has a 200 mV lower overpotential compared to that of the water electrolyzer.

Original language	English
Pages (from-to)	1397-1402
Number of pages	6
Journal	ACS Applied Energy Materials
Volume	5
Issue number	2
DOIs	https://doi.org/10.1021/acsaem.1c03689
State	Published - 28 Feb 2022

Bibliographical note

Publisher Copyright:
© 2022 American Chemical Society

Funding

V.T.V. has received funding from the Council of Higher Education of Israel. The authors thank Dr. Merav Tsubery and Raphael Flack for the CHNS analysis and Dr. Meera Mohan Kumar for helping with material synthesis.

Funders	Funder number
Council for Higher Education

Keywords

alkaline electrolyzer
electrocatalyst
metal nitrides
oxygen evolution reaction
urea oxidation reaction

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/acsaem.1c03689

Cite this

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