Hydrothermal and sintering synthesis of porous sheet-like NiO for xylene gas sensor

Content Provider	Scilit
Author	Wang, Qingji Li, Chaoyang Sun, Peng Liu, Fangmeng Lu, Geyu Li, Xu
Copyright Year	2019
Description	Journal: Materials Research Express P-type semiconductors have shown extraordinary application in improving the sensor gas-sensing performances. In this work, the porous flower-like NiO was successfully synthesized by a one-step hydrothermal route. The flower-like and porous hierarchical nanostructure are obviously observed by field emission scanning electron microscopy and transmission electron microscopy. Then we fabricate the sensor based on porous flower-like NiO and investigate the gas-sensing performance of sensor. The results show that the sensor based on porous flower-like NiO have a relatively low the optimum operating temperature. And the response value is 262% to 100ppm xylene gas at 225°C. The sensor show a low detection limit with 5ppm xylene gas. The response ratio between xylene and benzene is almost 20, in addition the ratio between xylene and toluene is almost 4. These response ratios show that the sensor has the excellent and reliable selectivity to xylene gas. Significantly, such porous flower-like NiO were demonstrated as a promising gas-sensing material for xylene gas sensor.
Related Links	https://iopscience.iop.org/article/10.1088/2053-1591/ab4f18/pdf
ISSN	20531591
e-ISSN	20531591
DOI	10.1088/2053-1591/ab4f18
Journal	Materials Research Express
Issue Number	11
Volume Number	6
Language	English
Publisher	IOP Publishing
Publisher Date	2019-09-01
Access Restriction	Open
Subject Keyword	Journal: Materials Research Express Porous Flower Like Nio
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Metals and Alloys Biomaterials Electronic, Optical and Magnetic Materials Polymers and Plastics