Creating Mesopores in Two-Dimensional Conductive Metal–Organic Frameworks for Enhanced Electrochemical Capacitive Performance

IF 8.6 1区化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Materials Letters Pub Date : 2026-10-05 Epub Date: 2026-09-12 DOI:10.1021/acsmaterialslett.6c00710

Chou-Hung Hsueh, Chi-Lun Chuang, Cheng-Yan Hsieh, Yin-Chu Tai, Hsin-Hsiang Mao, Chung-Wei Kung

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引用次数: 0

Abstract

Two-dimensional conductive metal–organic frameworks (2D c-MOFs), such as Ni₃(2,3,6,7,10,11-hexaiminotriphenylene)₂ (Ni₃(HITP)₂), are promising active materials for electrochemical energy storage due to their intrinsic conductivity and well-defined porous structures. However, their predominantly microporous nature limits ionic transport, leading to poor performance at fast charging rates. Herein, we report a soft-template strategy using a symmetric triblock copolymer to introduce mesoporosity into Ni₃(HITP)₂. The resulting materials exhibit preserved crystallinity and hierarchical pore structures, with mesopores of 3–5 nm confirmed by both nitrogen sorption and transmission electron microscopy. This work demonstrates the creation of mesopores in 2D c-MOFs via a soft-template approach. The mesopores of Ni₃(HITP)₂ facilitate the mass transfer of ions and thus enhance the rate capability for the application in supercapacitors, highlighting soft-template engineering as an effective strategy for tuning pore structure and electrochemical performance.

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在二维导电金属-有机框架中创建介孔以增强电化学电容性能

二维导电金属有机骨架（2D c-MOFs），如Ni3（2,3,6,7,10,11-己胺基三苯）2 (Ni3(HITP)2)，由于其固有的导电性和良好的多孔结构，是很有前途的电化学储能活性材料。然而，它们主要的微孔性质限制了离子传输，导致在快速充电速率下性能不佳。在此，我们报告了一种软模板策略，使用对称三嵌段共聚物将介孔引入Ni3(HITP)2。所得材料具有良好的结晶度和分层孔隙结构，氮吸附和透射电镜证实其介孔为3-5 nm。这项工作展示了通过软模板方法在2D c- mof中创建介孔。Ni3(HITP)2的介孔促进了离子的传质，从而提高了在超级电容器中的应用速率，突出了软模板工程作为调整孔结构和电化学性能的有效策略。

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来源期刊

ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

14.60

自引率

3.50%

发文量

261

期刊介绍： ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.