Nanorods-assembled ZnO microflower as a powerful channel for n-butanol sensing

摘要: Abstract Assembly of one-dimensional (1D) nanorods into organized three-dimensional (3D) architectures, coupled with open interspaces, is favorable for gas-interface interaction and diffusion. In this paper, a single-crystalline nanorods-built ZnO microflower has been successfully prepared through facile hydrothermal route. The surface morphology, crystal structure, element composition pore characteristic product were also conducted using diverse technical methods. addition, the morphology evolution process was further clarified time-dependent reaction. microflower-based gas sensor declared remarkable response towards n-butanol in terms outstanding selectivity, low detection limit (~ 0.1 ppm), rapid rate (≤ 12 s 1–100 ppm n-butanol). Moreover, still maintained powerful (Ra/Rg = 46.53) 100 ppm when exposed to high-level relative humidity (RH 80%). improvement gas-sensing discussed detail. This work demonstrates that integration 1D rational 3D structure an efficient strategy fabricating high-performance sensor.