Affiliation:
1. Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
2. Department of Physics, Tianshui Normal University, Tianshui, Gansu 741001, China
Abstract
The ZnO-10, ZnO-20, ZnO-30, and ZnO-40 nanopetal-shaped samples were successfully synthesized by a hydrothermal method. The results of XRD, SEM, TEM, and BET indicate that the micro–nano petal-like samples have the advantages of high purity, good crystallinity, and large specific surface area. The ZnO-20 sample with the largest specific surface area and pore volume was prepared by adjusting the scheme without changing the sample morphology. The specific surface area and pore volume of the sample were 33.6914[Formula: see text]m2/g and 0.1561[Formula: see text]ml/g. The results of gas sensitivity test show that the sample has the highest response and super good gas sensitivity selectivity. At 250∘C, the responses to 5[Formula: see text]ppm and 50[Formula: see text]ppm ethylene glycol can reach 14.4 and 293, respectively. Because of the excellent gas performance of ZnO nanosheets, this work can provide a theoretical basis for the research and development of ultra-sensitive ethylene glycol gas sensors in the industry.
Funder
the National Natural Science Foundations of China
the Young Doctor Foundation Project of the Department of Education of Gansu Province
Long Yuan Youth Innovate and Entrepreneurship Talents Project in 2020
the Innovation Project of Tianshui Normal College Curriculum Ideological and Political Education
the Education and Teaching Reform Research Project of Tianshui Normal University
the Education Science “14th Five-Year Plan” Project of Gansu Province
Publisher
World Scientific Pub Co Pte Ltd
Subject
Condensed Matter Physics,Statistical and Nonlinear Physics