Binary-Soft-Template-Mediated Construction of Fe(OH)₃/NiMnFe LDH Heteronanostructures for Nitrate Electroreduction.

Authors

Xu-Zhuo Fan, Jia-Wei Zhao, Ting-Ting Yin, Gang Zhang, Dong Zheng, Jian-Ding Zhang, An-Chen Lv, Yan-Ming Fu, Jing-Jing Tian, Sheng Cheng, Yu-Qing He, Jie Zhang, Shi-Kui Han

Published in

Nano letters. Jun 21, 2026. Epub Jun 21, 2026.

Abstract

The electrocatalytic nitrate reduction reaction (NO₃RR) efficiently converts nitrate pollutants into valuable ammonia. While layered double hydroxides (LDHs) are promising NO₃RR catalysts, their inherent low conductivity and layer stacking hinder performance. Herein, we report a binary-soft-template-mediated colloidal strategy to fabricate monolayer NiMnFe LDH ultrathin nanosheets (UNSs), constructing Fe(OH)₃/NiMnFe LDHs heteronanostructures (HNs) via edge-selective growth. This noble-metal-free, loop-sheet catalyst achieves an outstanding ammonia production rate (24.41 mg h^-1 cm^-2), high selectivity, and long-term durability. These superior catalytic properties are attributed to Fe incorporation, which optimizes the electronic structure and enriches active sites, and the constructed heterointerfaces that facilitate efficient electron transfer. This synthetic strategy provides a robust platform for engineering advanced LDH-based and 2D materials to achieve specific functionalities in nitrate reduction.

PMID:
42324726
Bibliographic data and abstract were imported from PubMed on 22 Jun 2026.

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