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Synthesis of Ordered Mesoporous ZnO Nanostructures for Gas Sensing

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In this study, the ordered mesoporous jar structure ZnO particles have been synthesized by template method. The cetyltrimethylammonium bromide (CTMAB) was used as the template agent, and zinc acetate dihydrate was used as zinc sources. The prepared material has ordered mesoporous on the surface. The prepared ordered mesoporous ZnO particles showed the hexagonal prisms hollow jar structure, the hexagonal prisms average diameter was about 150 nm, the average length was about 200 nm, and the jar average diameter was about 100 nm. The prepared materials were used as a gas sensor to test the toxic gas. The ordered mesoporous ZnO material showed more excellent gas sensing performances than the imporous ZnO material which was prepared without template agent by the same method. In particular, the ordered mesoporous ZnO showed a higher response to NO x , the detection limit reached to 0.5 ppm, the sensitivity reached to 66.92, and the response time was 1.08 s to 100 ppm NO x at 193 °C. The prepared material will be an excellent gas sensing matrix materials, and have a wide application prospect in gas sensors field.
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Keywords: Characterization; Gas Sensor; NOx; Ordered Mesoporous Materials; ZnO Jar

Document Type: Research Article

Affiliations: School of Chemistry & Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, P. R. China

Publication date: April 1, 2020

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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