Kong Lushi, Rui Guanchun, Wang Guangyu, Huang Rundong, Li Ran, Yu Jiajie, Qi Shengli, Wu Dezhen
State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
Materials (Basel). 2017 Nov 2;10(11):1263. doi: 10.3390/ma10111263.
A simple and practical method for coating palladium/silver nanoparticles on polyimide (PI) nanotubes is developed. The key steps involved in the process are silver ion exchange/reduction and displacement reactions between silver and palladium ions. With the addition of silver, the conductivity of the PI nanotubes is greatly enhanced. Further, the polyimide nanotubes with a dense, homogeneous coating of palladium nanoparticles remain flexible after heat treatment and show the possibility for use as highly efficient catalysts. The approach developed here is applicable for coating various noble metals on a wide range of polymer matrices, and can be used for obtaining polyimide nanotubes with metal loaded on both the inner and outer surface.
开发了一种在聚酰亚胺（PI）纳米管上包覆钯/银纳米颗粒的简单实用方法。该过程涉及的关键步骤是银离子交换/还原以及银离子与钯离子之间的置换反应。随着银的加入，PI纳米管的导电性大大增强。此外，具有致密、均匀钯纳米颗粒涂层的聚酰亚胺纳米管在热处理后仍保持柔韧性，并显示出用作高效催化剂的可能性。这里开发的方法适用于在各种聚合物基质上包覆各种贵金属，并且可用于获得内外表面均负载有金属的聚酰亚胺纳米管。
