From the journal:

New Journal of Chemistry

NiFeCoCr Medium-entropy Hoffmann-type Coordination Polymer Nanosheet Arrays for Electrocatalytic Urea Oxidation

Daipeng Deng ,   Lijuan Huang,   Yongkun Chen ,   Fan Tao,   Haoning Liu,   Zhehao Sun,   Ya Hui Yang  and  Hao Jiang  

Abstract

Herein, nickel foam supported NiFeCoCr medium-entropy Hoffmann-type coordination polymer (NiFeCoCr-HCP/NF) nanosheet arrays comprising Ni2+, Co2+, Fe3+, Cr3+, and a potassium tetracyano nickelate ligand were first fabricated. NiFeCoCr-HCP/NF demonstrated superior UOR performance with a low potential of 1.45 V (vs. RHE) at 100 mA cm-2 and a strong operational stability, highlighting Ni-based HCP materials as efficient, economical electrocatalysts.

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Article information

DOI
https://doi.org/10.1039/D5NJ02804C
Article type
Communication
Submitted
10 Jul 2025
Accepted
19 Aug 2025
First published
20 Aug 2025

New J. Chem., 2025, Accepted Manuscript

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NiFeCoCr Medium-entropy Hoffmann-type Coordination Polymer Nanosheet Arrays for Electrocatalytic Urea Oxidation

D. Deng , L. Huang, Y. Chen , F. Tao, H. Liu, Z. Sun, Y. H. Yang and H. Jiang, New J. Chem., 2025, Accepted Manuscript , DOI: 10.1039/D5NJ02804C

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