title: Highly sensitive ZnO nanorod- and nanoprism-based NO2 gas sensors: size and shape control using a continuous hydrothermal pilot plant.
abstract: Continuous hydrothermal flow synthesis of crystalline ZnO nanorods and prisms is reported via a new pilot-scale continuous hydrothermal reactor (at nominal production rates of up to 1.2 g/h). Different size and shape particles of ZnO (wurtsite structure) were obtained via altering reaction conditions such as the concentration of either additive H2O2 or metal salt. Selected ZnO samples (used as prepared) were evaluated as solid oxide gas sensors, showing excellent sensitivity toward NO2 gas. It was found that both the working temperature and gas concentration significantly affected the NO2 gas response at concentrations as low as 1 ppm.
authors.affiliation: Department of Chemistry, University of Science and Technology of China, Hefei 230026, PR China. sliang@ustc.edu.cn
authors.forename: Liang
authors.initials: L
authors.lastname: Shi
authors.forename: Anupriya J T
authors.initials: AJ
authors.lastname: Naik
authors.forename: Josephine B M
authors.initials: JB
authors.lastname: Goodall
authors.forename: Chris
authors.initials: C
authors.lastname: Tighe
authors.forename: Rob
authors.initials: R
authors.lastname: Gruar
authors.forename: Russell
authors.initials: R
authors.lastname: Binions
authors.forename: Ivan
authors.initials: I
authors.lastname: Parkin
authors.forename: Jawwad
authors.initials: J
authors.lastname: Darr