Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
NiFe layered double hydroxide (NiFe LDH) derived oxyhydroxides are promising electrocatalysts for the alkaline oxygen evolution reaction (OER). However, NiFe LDH with a stable metal-oxygen-metal (M-O-M) structure suffers from inadequate NiFe interaction, leading to undesirable activity and stability. Herein, we develop a NiFe hydroxide-organic framework (NiFe HOF) via modification of NiFe LDH with an organic linker to break the structural constraint of M-O-M and thus boost the OER. NiFe HOF with reconfigurable metal sites facilitates structural reengineering under the OER condition to form abundant NiFe interaction and prolonged M-O bonds, stimulating lattice oxygen mechanism. Therefore, NiFe HOF shows a distinctly decreased overpotential at 50 mA cm, which is 68 mV lower than that of NiFe LDH. The anion exchange membrane electrolyzer using NiFe HOF as anode electrode displays ultralong stability exceeding 1050 h at 1 A cm with a low attenuation of 0.16 mV h.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acs.nanolett.4c04815 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Dual-active engineering of NiFe LDH nanosheets with anion intercalation and oxygen vacancies for high-performance aqueous nickel-zinc batteries.
Chem Commun (Camb)
September 2025
Department of Applied Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China.
Herein, 1,3,5-benzenetricarboxylate (BTC) intercalation and oxygen vacancy engineering are proposed to enhance the electrochemical performance of layered double hydroxide (LDH) nanosheets. The optimized LDH exhibits a remarkable capacity of 426 mAh g at 3 A g and 70% capacity retention after 15 000 cycles, attributed to improved ion transport, abundant active sites, and structural stability.
View Article and Find Full Text PDFTa-doped NiFe layered double hydroxide for efficient alkaline water oxidation at ampere-level current with 2000 h durability.
Nanoscale
September 2025
State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China.
Electrochemical water splitting offers a sustainable strategy for hydrogen production, yet the kinetic sluggishness of the oxygen evolution reaction (OER) due to high activation barriers remains a critical challenge. NiFe layered double hydroxide (NiFe LDH) is a promising OER catalyst in alkaline media, but its performance suffers from limited active site exposure and insufficient durability. Herein, the rational design of a Ta-doped NiFe LDH (NiFeTa LDH) were achieved a facile hydrothermal method.
View Article and Find Full Text PDFManganese-doped nickel-iron layered double hydroxides for enhanced peroxidase, oxidase, and catalase activities.
Nanoscale
September 2025
Department of Laboratory Medicine/Clinical Laboratory Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China.
Nanozymes with multi-enzymatic activity in biomedical fields have gained significant attention. However, the effects of metal-doping elements on the structure-activity relationship of many nanomaterials remain insufficiently understood. Herein, we selected NiFe-LDH as the base material to systematically investigate how varying Mn doping ratios and specific Mn doping sites within the NiFe-LDH lattice influences peroxidase (POD), oxidase (OXD), and catalase (CAT) activities.
View Article and Find Full Text PDFNiFe-LDH-enhanced Ru single-atom catalysts anchored on MXenes for synergistic photothermal-nanocatalytic cancer therapy.
Biomater Sci
September 2025
Department of Chemistry, Islamic Azad University, North Tehran Branch, Tehran, Iran.
Single-atom catalysts (SACs) have emerged as revolutionary agents in cancer treatment owing to their optimized atomic efficiency and highly tunable catalytic properties. Nonetheless, their clinical application is hindered by restricted stability, ineffective substrate adsorption, and subpar catalytic rates under physiological conditions. This study presents the rational design of a hybrid Ru single-atom nanozyme, based on a NiFe-layered double hydroxide (LDH) and coupled with an MXene (RuSA/NiFe-LDH-MXene), facilitating synergistic photothermal and catalytic tumor therapy.
View Article and Find Full Text PDFCerium-Doped NiFe Hydroxides Enabling Hybrid Pathways for Durable Alkaline Water Oxidation under Fluctuating Power.
ACS Nano
September 2025
Advanced Materials and Catalysis Group, Zhejiang Key Laboratory of Low-Carbon Synthesis of Value-Added Chemicals, State Key Laboratory of Clean Energy Utilization, Institute of Catalysis, Department of Chemistry, Zhejiang University, Hangzhou 310058, P. R. China.
In this work, we present a cerium-substituted NiFe-layered double hydroxide (NiFe-Ce LDH) that synergistically activates both the adsorbate evolution mechanism (AEM) and a localized lattice-oxygen mechanism (LOM) for efficient alkaline water oxidation. Atomic Ce incorporation induces charge redistribution through Ce -O interactions, stabilizing Fe sites and upshifting the O band to enable controlled lattice-oxygen redox without structural collapse. In situ ATR-SEIRAS and DEMS measurements confirm the simultaneous formation of *OOH and OO* intermediates, indicating the hybrid pathway.
View Article and Find Full Text PDF