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Aluminum-doped NiO nanofibers as chemical sensors for selective and sensitive methanol detection
- Feng, Changhao, Jiang, Zhongwei, Chen, Bin, Cheng, Pengfei, Wang, Yinglin, Huang, Chengzhi
- Analytical methods 2019 v.11 no.5 pp. 575-581
- X-ray diffraction, air, aluminum, manufacturing, methanol, nanofibers, nickel oxide, scanning electron microscopy, transmission electron microscopy, vapors
- One-dimensional nanomaterials with controlled morphology have received considerable attention as chemical sensors. Herein, we report a low-cost and facile method for manufacturing chemical sensors based on Al-doped NiO nanofibers. The structures and morphologies of the samples were characterized by SEM, TEM, SAED and XRD. Chemical sensors with 3 mol% Al-doped NiO nanofibers showed a response of 10.4 to 200 ppm methanol. The transient, dynamic, repeatability, selectivity, and long-term stability characteristics of the obtained sensors were tested, which indicated that these chemical sensors were promising for detecting methanol vapor in air.