Single-Point Linkage Engineering in Conjugated Phthalocyanine-Based Covalent Organic Frameworks for Electrochemical CO2 Reduction

IF 26.6 1区材料科学 Q1 Engineering

Nano-Micro Letters Pub Date : 2025-05-09 DOI:10.1007/s40820-025-01754-9

Wenchang Chen, Yi Zhang, Mingyu Yang, Chao Yang, Zheng Meng

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Abstract

Highlights

Three novel covalent organic frameworks (COFs) composed of nickel phthalocyanine units and different linkages, including dioxin, piperazine, and dithiine, were successfully constructed.
It was found that only a single-point structural variation of the linkage in the COFs could effectively modulate their performance in CO₂ reduction reaction, where the piperazine-linked COF achieved a pretty high Faradaic efficiency for CO of 90.7% at a critically low overpotential of 0.39 V.
Theoretical calculations indicated that the COF with dioxin linkage stabilized the *COOH intermediate more effectively than the other two NiPc-based COFs.

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电化学CO2还原共轭酞菁基共价有机框架的单点连锁工程

成功构建了由镍酞菁单元和不同键组成的新型共价有机框架（COFs），包括二恶英、哌嗪和二硫胺。结果表明，在低过电位0.39 V的条件下，哌嗪连接的COF对CO的法拉第效率达到了90.7%。理论计算表明，含二恶英键的COF对*COOH中间体的稳定作用优于其他两种基于nipc的COF。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nano-Micro Letters NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

32.60

自引率

4.90%

发文量

981

审稿时长

1.1 months

期刊介绍： Nano-Micro Letters is a peer-reviewed, international, interdisciplinary, and open-access journal published under the SpringerOpen brand. Nano-Micro Letters focuses on the science, experiments, engineering, technologies, and applications of nano- or microscale structures and systems in various fields such as physics, chemistry, biology, material science, and pharmacy.It also explores the expanding interfaces between these fields. Nano-Micro Letters particularly emphasizes the bottom-up approach in the length scale from nano to micro. This approach is crucial for achieving industrial applications in nanotechnology, as it involves the assembly, modification, and control of nanostructures on a microscale.