Non-fluorinated Triazine-Functionalized Pentiptycene-Based Nanoporous Organic Polymer for Highly Efficient SF6/N2 Separation

IF 9.6 1区化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Materials Letters Pub Date : 2025-04-18 DOI:10.1021/acsmaterialslett.5c0054910.1021/acsmaterialslett.5c00549

Xinyu Yang, Qilin Wang, Jiangli Zhu, Jun Yan* and Shengwei Guo,

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Abstract

Efficient separation of sulfur hexafluoride (SF₆) from SF₆/N₂ mixtures is essential for both environmental protection and industrial applications. We report a non-fluorinated triazine-functionalized pentiptycene-based nanoporous organic polymer (TNOP-1) synthesized through a one-pot method of pentiptycene quinone with cyanuric chloride. TNOP-1 exhibits a high specific surface area of 822 m²·g^–1 and remarkable SF₆/N₂ selectivities of 95.0 at 273 K and 84.7 at 298 K. Dynamic breakthrough experiments further confirm efficient SF₆ capture under ambient conditions. Furthermore, molecular dynamics simulations reveal dominant SF₆ adsorption sites where polar triazine and ketone functionalities enhance host–guest interactions via framework C–H bonds. These findings offer important molecular-level design principles for SF₆ capture in nanoporous organic polymers (NOPs) and are expected to advance next-generation materials for energy-efficient gas separation.

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高效分离SF6/N2的非氟化三嗪功能化戊苯基纳米多孔有机聚合物

从SF6/N2混合物中高效分离六氟化硫（SF6）对于环境保护和工业应用至关重要。本文报道了一种以无氟三嗪功能化的pentptytycen2醌与三聚氰尿酸一锅法制备的纳米多孔有机聚合物（TNOP-1）。TNOP-1的比表面积高达822 m2·g-1，在273 K和298 K下的SF6/N2选择性分别为95.0和84.7。动态突破实验进一步证实了环境条件下SF6的高效捕获。此外，分子动力学模拟揭示了SF6的主要吸附位点，其中极性三嗪和酮的功能通过框架C-H键增强了主-客体相互作用。这些发现为在纳米多孔有机聚合物（NOPs）中捕获SF6提供了重要的分子水平设计原则，并有望推动下一代节能气体分离材料的发展。

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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.