title: Polymer/Ordered mesoporous carbon nanocomposite platelets as superior sensing materials for gas detection with surface acoustic wave devices.
abstract: We have prepared nanocomposites of polymers and platelet CMK-5-like carbon and have demonstrated their superior performance for gravimetric gas detection. The zirconium-containing platelet SBA-15 was used as hard template to prepare CMK-5-like carbon, which was then applied as a lightweight and high-surface-area scaffold for the growth of polymers by radical polymerization. Mesoporous nanocomposites composed of four different polymers were used as sensing materials for surface acoustic wave devices to detect ppm-level ammonia gas. The sensors showed much better sensitivity and reversibility than those coated with dense polymer films, and the sensor array could still generate a characteristic pattern for the analyte with a concentration of 16 ppm. The results show that the nanocomposite sensing materials are promising for highly sensitive gravimetric-type electronic nose applications.
authors: Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan.
authors: Pei-Hsin
authors: PH
authors: Ku
authors: Chen-Yun
authors: CY
authors: Hsiao
authors: Mei-Jing
authors: MJ
authors: Chen
authors: Tai-Hsuan
authors: TH
authors: Lin
authors: Yi-Tian
authors: YT
authors: Li
authors: Szu-Chieh
authors: SC
authors: Liu
authors: Kea-Tiong
authors: KT
authors: Tang
authors: Da-Jeng
authors: DJ
authors: Yao
authors: Chia-Min
authors: CM
authors: Yang