将内在质子导电和可访问的纳米空间集成到协调聚合物中
Daiki Umeyama1, Satoshi Horike, Munehiro Inukai
1Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan.
Journal of the American Chemical Society
|July 9, 2013
概括
一种新的协调聚合物显示出高质子导电性和气体吸附性. 它的脱水形式显示了增强的导电性和甲醇吸附性,突出了其对先进材料的双重功能.
科学领域:
- 材料科学 材料科学 材料科学
- 化学 化学 化学
- 纳米技术纳米技术
背景情况:
- 协调聚合物是具有调节性质的多功能材料.
- 质子导电性对于燃料电池等能源应用至关重要.
- 气体吸附能力对于分离和储存技术很重要.
研究的目的:
- 合成和描述一种具有双重功能的新型协调聚合物.
- 为了研究结构变化和质子导电性之间的关系.
- 探索客分子吸附对材料性质的影响.
主要方法:
- 合成一种基于的协调聚合物与本齐米达和正酸盐.
- 脱水前后的结构特征.
- 在高温下测量内在质子导电性.
- 气体吸附研究,特别是甲醇.
- 核磁共振 (NMR) 光谱检测相互作用.
主要成果:
- 协调聚合物在脱水前和脱水后表现出不同的结构.
- 脱水形式显示出显著更高的质子导电性 (在120°C时高达1.3 × 10−3 S cm−1).
- 脱水形式对甲醇是多孔的,其质子导电性在甲醇吸附时增加了24倍.
- 核磁共振研究证实了框架和甲醇之间的结相互作用.
结论:
- 灵活的协调聚合物表现出双质子导电性和气体吸附性质.
- 结构重组和移动有机连接器有助于高质子导电性.
- 甲醇吸附通过结相互作用提高了质子导电性,展示了可调的功能.
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