Biomorphic synthesis of hollow CuO fibers for low-ppm-level n-propanol detection via a facile solution combustion method
Biomorphic synthesis of hollow CuO fibers for low-ppm-level n-propanol detection via a facile solution combustion method
复制标题
通过简单的溶液燃烧方法生物形态合成中空 CuO 纤维，用于低 ppm 级正丙醇检测
DOI：
10.1016/j.snb.2016.01.043
复制
发表时间：
2016-07-01
影响因子：
8.4
通讯作者：
Wang, Yude
中科院分区：
文献类型：
--
作者：
Dong, Chenjun;Xing, Xinxin;Wang, Yude
以棉纤维为模板，采用溶液燃烧法成功制备了中空CuO纤维。XRD图谱沿着Rietveld精修证实了具有单斜相的CuO的形成。合成的CuO纤维的长度为微米级，平均纤维直径为几纳米到微米级。燃烧反应后，大量的聚结颗粒留在棉纤维表面，形成CuO多孔壁。通过在600 ℃下完全去除棉体，得到中空CuO纤维。根据实验数据，提出了以棉纤维为模板生长中空CuO纤维的可能机理。当用作气敏元件的敏感材料时，它对低ppm级（1-100 ppm）正丙醇表现出上级灵敏度和良好的选择性。这些发现不仅提供了一种新的方法，通过溶液燃烧路线制备空心氧化铜纤维，而且探索了一种有前途的气体传感器对正丙醇。(C)© 2016 Elsevier B. V.版权所有。
Hollow CuO fibers were successfully fabricated using a facile solution combustion method by incorporating cotton fibers as biotemplate. XRD patterns along with Rietveld refinement confirm the formation of CuO with monoclinic phase. The length of the as-synthesized CuO fibers is at micrometer scale, and the average fiber diameter ranges from several nanometers up to order of micrometers. After combustion reaction, a large amount of coalescent particles left on the surface of the cotton fibers to form porous walls of CuO. By totally removing cotton body at 600 degrees C, hollow CuO fibers were obtained. A possible growth mechanism of hollow CuO fibers using cotton fibers as templates was given based on experimental data. When used as a sensing material in gas sensor, it exhibited a superior sensitivity and good selectivity toward low-ppm-level (1-100 ppm) n-propanol. Theses findings not only provide a novel approach to fabricate hollow CuO fibers via a solution combustion route, but also explore a promising gas sensor toward n-propanol. (C) 2016 Elsevier B.V. All rights reserved.