三甲胺
纳米纤维
材料科学
纳米材料
静电纺丝
异质结
纳米技术
选择性
制作
层状结构
热液循环
氧化物
化学工程
复合材料
光电子学
聚合物
化学
有机化学
病理
催化作用
工程类
冶金
医学
替代医学
作者
Qingqing Xie,Yongling Ding,Qi Wang,Peng Song
标识
DOI:10.1016/j.snb.2024.135338
摘要
Two-dimensional (2D) nanomaterials have emerged considerable application foreground in gas sensing from their particular structure and surface chemistry. In this paper, one-dimensional (1D) In2O3 nanofibers/2D Ti3C2TX MXene composites were synthesized by electrospinning and hydrothermal method. The gas sensing test results demonstrate that the response value of In2O3 nanofiber/Ti3C2TX MXene gas sensor to 50 ppm trimethylamine at 120 ℃ is 12.44, which is 2.29 times (5.44) that of pure In2O3 nanofiber. Furthermore, the response/recovery process is only 4/3 s, and the gas sensor has good reproducibility and obvious selectivity to trimethylamine, which is due to the large specific surface area provided by the lamellar morphology of Ti3C2TX MXene, the nanofiber structure of In2O3 and the synergistic effect of their p-n heterojunctions. The compound preparation tactics of 1D metal oxide semiconductor and 2D nanomaterials provides a new idea for the preparation of high performance gas sensors.
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