Solvothermal Synthesis of Microporous, Crystalline Covalent Organic Framework Nanofibers and Their Colorimetric Nanohybrid Structures
Solvothermal Synthesis of Microporous, Crystalline Covalent Organic Framework Nanofibers and Their Colorimetric Nanohybrid Structures
复制标题
微孔结晶共价有机骨架纳米纤维的溶剂热合成及其比色纳米杂化结构
DOI：
10.1021/am402649g
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发表时间：
2013-09-25
影响因子：
9.5
通讯作者：
Liu, Xikui
中科院分区：
文献类型：
--
作者：
Huang, Wei;Jiang, Yi;Liu, Xikui
本文报道了一种简单的溶剂热方法，用于设计和合成具有优异性能的新型晶体COF纳米纤维。观察到从微球到纳米纤维的有趣形态转变，这可能是由于动态亚胺键的可逆性质所导致的独特的溶解-再结晶机制所支持的。有趣的是，COF纳米纤维可以在芳纶微纤维表面外延生长。这种功能性纳米复合材料表现出有趣的比色湿度响应行为。本研究为制备具有特定微纳米结构的COFs提供了一种通用的方法，并对其在催化剂和传感器中的应用具有更大的意义。
This paper reports a facile solvothermal approach for the design and synthesis of novel crystalline COF nanofibers with amazing properties. An interesting morphological transformation from microsphere to nanofibers was observed, which could be supported by the unique dissolution-recrystallization mechanism due to the reversible nature of dynamic imine bonding. Interestingly, it was also found that the COF nanofibers could epitaxial grow on the aramid microfiber surface. This functional nanocomposite showed an interesting colorimetric humidity-responsive behavior. Our study provides a general methodology for the fabrication of COFs with designated micronanostructures and has more implications on their applications in catalyst and sensors.