Heterostructured NiO/ZnO Nanorod Arrays with Significantly Enhanced H2S Sensing Performance
Abstract
:1. Introduction
2. Experiment
2.1. Growth of ZnO NRs
2.2. Preparation of NiO/ZnO Heterostructures
3. Results and Discussion
3.1. Characterizations of Pure ZnO Nanorods and NiO/ZnO Heterostructures
3.2. Gas Sensing Properties
3.3. Sensing Mechanism of NiO/ZnO-Heterostructures-Based Sensor
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Material | Detection Limit (ppm) | Gas Conc. (ppm) | T (°C) | Response (Ra/Rg or Rg/Ra) | Reference |
---|---|---|---|---|---|
ZnO Nanorods | - | 100 | 100 | 23 | [26] |
CuO-ZnO Nanorods | - | 100 | 100 | 39 | [41] |
NiO Thin film | 1 | 50 | 92 | 20.6 | [25] |
Au-NiO Yolk-shell | 1.25 | 5 | 400 | 44.2 | [42] |
CuO-NiO Microspheres | 10 | 100 | 260 | 47.6 | [43] |
CuO-ZnSnO3 Nanowires | 25 | 100 | 100 | 2.2 | [44] |
NiO/ZnO Heterostructures | 0.1 | 20 | 160 | 21.3 | This work |
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Ao, D.; Li, Z.; Fu, Y.; Tang, Y.; Yan, S.; Zu, X. Heterostructured NiO/ZnO Nanorod Arrays with Significantly Enhanced H2S Sensing Performance. Nanomaterials 2019, 9, 900. https://doi.org/10.3390/nano9060900
Ao D, Li Z, Fu Y, Tang Y, Yan S, Zu X. Heterostructured NiO/ZnO Nanorod Arrays with Significantly Enhanced H2S Sensing Performance. Nanomaterials. 2019; 9(6):900. https://doi.org/10.3390/nano9060900
Chicago/Turabian StyleAo, Dongyi, Zhijie Li, Yongqing Fu, Yongliang Tang, Shengnan Yan, and Xiaotao Zu. 2019. "Heterostructured NiO/ZnO Nanorod Arrays with Significantly Enhanced H2S Sensing Performance" Nanomaterials 9, no. 6: 900. https://doi.org/10.3390/nano9060900