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Peer-reviewedCC BY 4.0Nanomaterials

Ni0.85Se Nanosheet Arrays on Nickel Foam as a Robust Non-Noble Metal Electrocatalyst for Energy-Efficient Urea Oxidation

  • John Anthuvan Rajesh1
  • Shrine Maria Nithya Jeghan1
  • Soon-Hyung Kang2
  • Kwang-Soon Ahn1
  1. 1School of Chemical Engineering, Yeungnam University, Gyeongsan 712-749, Republic of Korea
  2. 2Department of Chemistry Education, Chonnam National University, Gwangju 500-757, Republic of Korea
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Abstract

We report the facile synthesis of Ni0.85Se nanosheet arrays directly grown on nickel foam (NF) via a two-step hydrothermal strategy using Ni(OH)2 as a precursor. The two-dimensional architecture offers abundant electroactive sites and efficient charge transport pathways, resulting in remarkable electrocatalytic activity toward the urea oxidation reaction (UOR). The optimized Ni0.85Se/NF electrode delivers a current density of 10 mA cm−2 at a potential of 1.352 V vs. RHE and exhibits a small Tafel slope of 42.3 mV dec−1. Furthermore, it demonstrates excellent durability, maintaining stable operation for over 120 h in alkaline urea-containing electrolyte. These findings highlight Ni0.85Se nanosheets as a cost-effective and durable non-noble-metal electrocatalyst with significant potential for urea oxidation application.

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Cite

BibTeXRIS
BibTeX
@article{rajesh2026ni085se,
  title = {{Ni0.85Se Nanosheet Arrays on Nickel Foam as a Robust Non-Noble Metal Electrocatalyst for Energy-Efficient Urea Oxidation}},
  author = {John Anthuvan Rajesh and Shrine Maria Nithya Jeghan and Soon-Hyung Kang and Kwang-Soon Ahn},
  journal = {Nanomaterials},
  year = {2026},
  month = oct,
  doi = {10.3390/nano16211357},
  url = {https://www.mdpi.com/2079-4991/16/21/1357},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Ni0.85Se Nanosheet Arrays on Nickel Foam as a Robust Non-Noble Metal Electrocatalyst for Energy-Efficient Urea Oxidation
AU  - John Anthuvan Rajesh
AU  - Shrine Maria Nithya Jeghan
AU  - Soon-Hyung Kang
AU  - Kwang-Soon Ahn
PY  - 2026
DA  - 2026/10/25
JO  - Nanomaterials
DO  - 10.3390/nano16211357
UR  - https://www.mdpi.com/2079-4991/16/21/1357
AB  - We report the facile synthesis of Ni0.85Se nanosheet arrays directly grown on nickel foam (NF) via a two-step hydrothermal strategy using Ni(OH)2 as a precursor. The two-dimensional architecture offers abundant electroactive sites and efficient charge transport pathways, resulting in remarkable electrocatalytic activity toward the urea oxidation reaction (UOR). The optimized Ni0.85Se/NF electrode delivers a current density of 10 mA cm−2 at a potential of 1.352 V vs. RHE and exhibits a small Tafel slope of 42.3 mV dec−1. Furthermore, it demonstrates excellent durability, maintaining stable operation for over 120 h in alkaline urea-containing electrolyte. These findings highlight Ni0.85Se nanosheets as a cost-effective and durable non-noble-metal electrocatalyst with significant potential for urea oxidation application.
SN  - 2079-4991
ER  -