有機・無機複合薄膜を修飾した水晶振動子センサによるアンモニアおよびホルムアルデヒドの二成分ガス検知

カテゴリ: 論文誌(論文単位)

グループ名: 【E】センサ・マイクロマシン部門

発行日: 2017/07/01

タイトル(英語): Two-component Gas Sensing of Ammonia and Formaldehyde using Quartz Crystal Microbalance Sensors Modified with Organic/Inorganic Hybrid Nanothin Films

著者名: 李　丞祐（北九州市立大学大学院国際環境工学研究科），高原　直己（北九州市立大学大学院国際環境工学研究科），王　涛（北九州市立大学大学院国際環境工学研究科）

著者名(英語): Seung-Woo Lee (Graduate School of Environmental Engineering, The University of Kitakyushu), Naoki Takahara (Graduate School of Environmental Engineering, The University of Kitakyushu), Tao Wang (Graduate School of Environmental Engineering, The University of Kitakyushu)

キーワード: ガスセンサ，水晶発振子，表面ゾルゲル法，酸化チタン，交互積層　　Gas sensor，quartz crystal microbalance，surface sol-gel process，titanium dioxide，layer-by-layer deposition

要約(英語): Quartz crystal microbalance (QCM) gas sensors based on the alternate deposition of TiO2 and polymers were developed for the detection of ammonia and formaldehyde odors. For sensitive detection of both analytes, poly(acrylic acid), PAA, and poly(allyamine hydrochloride), PAH, were employed in the film along with TiO2 thin layers that were prepared by the gas-phase surface sol-gel (GSSG) process. The alternate (TiO2/PAA/TiO2/PAH) film-deposited QCM sensor showed linear responses to ammonia in the concentration range 0.5-40 ppm and to formaldehyde in the concentration range 0.3-20 ppm. The sensor response was very fast, stable, and repeatable. The ammonia or formaldehyde binding is based on the acid-base interaction to the free carboxyl or amino groups of PAA or PAH. TiO2 thin layers deposited by the GSSG process played significant roles in preventing the electrostatic interaction of polymer layers and in improving the diffusion of gaseous analytes inside the film.

本誌: 電気学会論文誌E（センサ・マイクロマシン部門誌） Vol.137 No.7 （2017） 特集：水晶振動子を用いたケミカル・バイオセンサの最近の進歩：基礎から応用まで

本誌掲載ページ: 199-204 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejsmas/137/7/137_199/_article/-char/ja/