PEG-20000 assisted hydrothermal synthesis of hierarchical ZnO flowers: Structure,growth and gas sensor properties |
| |
| Affiliation: | 1. Chongqing Key Laboratory of Catalysis and Functional Organic Molecules, College of Environment and Biological Engineering, Chongqing Technology and Business University, Chongqing 400067, PR China;2. College of Computer Science and Information Engineering, Chongqing Technology and Business University, Chongqing 400067, PR China;3. WPI Research Center, Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan;1. Department of Solid Mechanics and Design, Faculty of Mechanical Engineering, University Technology Malaysia – UTM, 81310 UTM Skudai, Johor, Malaysia;2. School of Engineering, Griffith University, Gold Coast Campus, Southport 4222, Australia;3. School of Engineering, The University of Newcastle, Callaghan, New South Wales 2308, Australia;1. Sección de Estudios de Posgrado e Investigación, ESIME ZAC, Instituto Politécnico Nacional, México, D.F. 07738, Mexico;2. Depto. Ing. Materiales, Tecnológico de Estudios Superiores de Coacalco, Coacalco de Berriozábal, 55700 Edo. México, Mexico;3. Centro de Nanociencia y MicroNanotecnología del Instituto Politécnico Nacional, México, D.F. 07738, Mexico;4. Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, México, D.F. 04510, Mexico;5. ESIQIE, Instituto Politécnico Nacional, México, D.F. 07738, Mexico;6. Depto. Ing. Metalurgia y Materiales, ESIQIE, Instituto Politécnico Nacional, 07300 México, D.F., Mexico;7. Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada Unidad Querétaro, Instituto Politécnico Nacional, Santiago de Querétaro, Querétaro 76090, Mexico;1. School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China;2. Department of Chemical Engineering, University of Ulsan, Ulsan 680-749, South Korea |
| |
| Abstract: | 
The hierarchically structured materials usually show improved physical and chemical properties. Here, using simple hydrothermal method and reagents of polyethylene glycol (PEG-20000), we synthesize the ZnO crystals and find that they exhibit hierarchical flower-like architectures assembled by nanorods. Further comparative studies demonstrate that PEG provides nucleation sites for the assembling of the nanorods, which play a critical role in producing such unique flower-like architectures. Consequently, the sensor made of ZnO nanoflowers is found to show good gas sensing performance to the hydrothion gas. |
| |
| Keywords: | ZnO Crystal growth Surfactant Ethanol Gas sensors |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
