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一种通过低温合成的高质子导电性 perfluorinated 共价 triazine 框架

Lijiang Guan¹, Zhaoqi Guo², Qi Zhou¹

¹School of Chemical Engineering and Technology, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, Shaanxi, 710049, China.

Nature communications

|December 8, 2023

概括

研究人员开发了一种低温方法,以创建经济的共价三酶框架 (CTF). perfluorinated CTF (CTF-TF) 显示了增强的质子导电性,这对于燃料电池应用至关重要.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
电化学电化学电化学

背景情况:

质子导体材料对于经济至关重要,特别是在高温应用中.
共价三酶框架 (CTF) 是有前途的,但需要改进的质子载体相互作用和更简单的合成.
开发有效和可扩展的CTF合成方法仍然是一个重大挑战.

研究的目的:

开发一种低温合成路径,用于共价三酶框架 (CTFs).
为了研究高温应用新型 perfluorinated CTF (CTF-TF) 的质子导电性.
为了证明CTF-TF的整合到膜中,以增强质子导电.

主要方法:

通过在露天大气中低温 (≤160°C) 直接循环化芳香性化物合成的CTF.
使用化作为CTF建设的容易源.
用酸 (H3PO4) 加载的CTF-TF增强了质子导电性.

主要成果:

在显著降低的温度和环境条件下成功合成高化CTF (CTF-TF).
在150°C的温度下为H3PO4载荷的CTF-TF实现了1.82 × 10−1 S cm−1的高质子导电性,这归因于增强的键相互作用.
证明了CTF-TF在混合矩阵膜中的成功集成,表现出优异的质子导电性和机械稳定性.

结论:

已经确定了包括CTF-TF在内的CTF的简单低温合成方法.
由于与质子载体的特定相互作用,CTF-TF在高温下表现出优越的质子导电性.
这项工作为设计用于能源应用的先进质子导体材料提出了一个有前途的策略.

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