Department of Textile Engineering, Sichuan University, Chengdu 610065, China.
ACS Appl Mater Interfaces. 2013 Jul 24;5(14):6473-7. doi: 10.1021/am402217s. Epub 2013 Jul 11.
A hierarchically structured three-dimensional network nanofibrous composite membrane was prepared through in situ growing uniform polyaniline nanofibers on the surfaces of poly(ethylene-co-glycidyl methacrylate) (PE-co-GMA) nanofibers. And the nanocomposite membrane was fabricated into a super sensitive sensor of ammonia gas in ambient temperature. Morphological analysis of the nanocomposite membranes revealed uniform small nanofibers of PANI rooted on the surface of PE-co-GMA large nanofibers and a three-dimensional porous nanocomposite structure formed. Because of the ultrahigh surface areas and three-dimensional porous architecture, the prepared sensor demonstrated high sensitivity in the parts per billion range and quick response with good reproducibility to ammonia gas.
通过在聚（乙烯-co-甲基丙烯酸缩水甘油酯）（PE-co-GMA）纳米纤维表面原位生长均匀的聚苯胺纳米纤维，制备了具有分层结构的三维网络纳米纤维复合膜。然后将纳米复合膜制成一种超灵敏的室温氨气气体传感器。纳米复合膜的形态分析表明，均匀的聚苯胺纳米纤维扎根在聚（乙烯-co-甲基丙烯酸缩水甘油酯）大纳米纤维的表面上，形成了三维多孔纳米复合结构。由于超高的比表面积和三维多孔结构，制备的传感器对氨气具有高灵敏度的纳升级别检测范围，并且响应迅速，重现性好。
