Two-dimensional Ni/C nanosheets derived from metal-organic frameworks for enhanced oxygen evolution reaction

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-06-21 DOI:10.1016/j.matlet.2025.138969

Chengwei Kuang , Fenglin Wang , Dan Wu , Hao Wan , Xiaohe Liu

引用次数: 0

Abstract

Two-dimensional (2D) metal–organic frameworks (MOFs) nanosheets and their derivatives have drawn great interest due to their ultrathin thickness, large surface areas and accessible active sites. Herein, 2D Ni₂(NDC)₂(DABCO) (NDC = 2,6-naphthalenedicarboxylic acid, DABCO = 1,4-diazabicyclo[2.2.2]octane) nanosheets are fabricated by modulator-assisted synthesis. After further pyrolysis treatment, the Ni/C nanosheets exhibit remarkable catalytic activities in the oxygen evolution reaction (OER) with a low overpotential of 293 mV at a current density of 10 mA cm⁻² and a small Tafel slope of 58 mV dec^–1. This work provides a convenient and effective method for the synthesis of 2D Ni₂(NDC)₂(DABCO) nanosheets.

查看原文本刊更多论文

基于金属有机骨架的二维Ni/C纳米片增强析氧反应

二维（2D）金属有机框架（mof）纳米片及其衍生物由于其超薄厚度、大表面积和可获得的活性位点而引起了人们的极大兴趣。本文采用调制剂辅助合成法制备了二维Ni2(NDC)2(DABCO) （NDC = 2,6-萘二羧酸，DABCO = 1,4-二氮杂环[2.2.2]辛烷）纳米片。进一步热解处理后，Ni/C纳米片在析氧反应（OER）中表现出显著的催化活性，在电流密度为10 mA cm−2时过电位低至293 mV， Tafel斜率小至58 mV dec1。本研究为二维Ni2(NDC)2（DABCO）纳米片的合成提供了一种方便有效的方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive